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Update Copyright #349

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Update Copyright #349

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@codepriya codepriya closed this Oct 31, 2016
bgly pushed a commit to powervm/ibmvscsis that referenced this pull request Nov 2, 2016
@jankara @kamalmostafa
writeback: Write dirty times for WB_SYNC_ALL writeback
14536ec 
BugLink: http://bugs.launchpad.net/bugs/1614565

Currently we take care to handle I_DIRTY_TIME in vfs_fsync() and
queue_io() so that inodes which have only dirty timestamps are properly
written on fsync(2) and sync(2). However there are other call sites -
most notably going through write_inode_now() - which expect inode to be
clean after WB_SYNC_ALL writeback. This is not currently true as we do
not clear I_DIRTY_TIME in __writeback_single_inode() even for
WB_SYNC_ALL writeback in all the cases. This then resulted in the
following oops because bdev_write_inode() did not clean the inode and
writeback code later stumbled over a dirty inode with detached wb.

  general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN
  Modules linked in:
  CPU: 3 PID: 32 Comm: kworker/u10:1 Not tainted 4.6.0-rc3+ torvalds#349
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
  Workqueue: writeback wb_workfn (flush-11:0)
  task: ffff88006ccf1840 ti: ffff88006cda8000 task.ti: ffff88006cda8000
  RIP: 0010:[<ffffffff818884d2>]  [<ffffffff818884d2>]
  locked_inode_to_wb_and_lock_list+0xa2/0x750
  RSP: 0018:ffff88006cdaf7d0  EFLAGS: 00010246
  RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88006ccf2050
  RDX: 0000000000000000 RSI: 000000114c8a8484 RDI: 0000000000000286
  RBP: ffff88006cdaf820 R08: ffff88006ccf1840 R09: 0000000000000000
  R10: 000229915090805f R11: 0000000000000001 R12: ffff88006a72f5e0
  R13: dffffc0000000000 R14: ffffed000d4e5eed R15: ffffffff8830cf40
  FS:  0000000000000000(0000) GS:ffff88006d500000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000003301bf8 CR3: 000000006368f000 CR4: 00000000000006e0
  DR0: 0000000000001ec9 DR1: 0000000000000000 DR2: 0000000000000000
  DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
  Stack:
   ffff88006a72f680 ffff88006a72f768 ffff8800671230d8 03ff88006cdaf948
   ffff88006a72f668 ffff88006a72f5e0 ffff8800671230d8 ffff88006cdaf948
   ffff880065b90cc8 ffff880067123100 ffff88006cdaf970 ffffffff8188e12e
  Call Trace:
   [<     inline     >] inode_to_wb_and_lock_list fs/fs-writeback.c:309
   [<ffffffff8188e12e>] writeback_sb_inodes+0x4de/0x1250 fs/fs-writeback.c:1554
   [<ffffffff8188efa4>] __writeback_inodes_wb+0x104/0x1e0 fs/fs-writeback.c:1600
   [<ffffffff8188f9ae>] wb_writeback+0x7ce/0xc90 fs/fs-writeback.c:1709
   [<     inline     >] wb_do_writeback fs/fs-writeback.c:1844
   [<ffffffff81891079>] wb_workfn+0x2f9/0x1000 fs/fs-writeback.c:1884
   [<ffffffff813bcd1e>] process_one_work+0x78e/0x15c0 kernel/workqueue.c:2094
   [<ffffffff813bdc2b>] worker_thread+0xdb/0xfc0 kernel/workqueue.c:2228
   [<ffffffff813cdeef>] kthread+0x23f/0x2d0 drivers/block/aoe/aoecmd.c:1303
   [<ffffffff867bc5d2>] ret_from_fork+0x22/0x50 arch/x86/entry/entry_64.S:392
  Code: 05 94 4a a8 06 85 c0 0f 85 03 03 00 00 e8 07 15 d0 ff 41 80 3e
  00 0f 85 64 06 00 00 49 8b 9c 24 88 01 00 00 48 89 d8 48 c1 e8 03 <42>
  80 3c 28 00 0f 85 17 06 00 00 48 8b 03 48 83 c0 50 48 39 c3
  RIP  [<     inline     >] wb_get include/linux/backing-dev-defs.h:212
  RIP  [<ffffffff818884d2>] locked_inode_to_wb_and_lock_list+0xa2/0x750
  fs/fs-writeback.c:281
   RSP <ffff88006cdaf7d0>
  ---[ end trace 986a4d314dcb2694 ]---

Fix the problem by making sure __writeback_single_inode() writes inode
only with dirty times in WB_SYNC_ALL mode.

Reported-by: Dmitry Vyukov <[email protected]>
Tested-by: Laurent Dufour <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
(cherry picked from commit dc5ff2b)
Signed-off-by: Tim Gardner <[email protected]>
Acked-by: Christopher Arges <[email protected]>
Signed-off-by: Kamal Mostafa <[email protected]>
Mic92 pushed a commit to Mic92/linux that referenced this pull request Feb 4, 2019
@thehajime
lkl: handle ro_after_init properlly
8141273 
Since section ro_after_init contains writable data located inside
.rodata section (which is read-only), resulting rodata section is
writable.  Since we don't have implementation of mark_rodata_ro() in our
arch, those section keep writable forever.

So this commit moves data.ro_after_init section from rodata to the
end of sections so that rodata section will be read-only.

Without this commit there is no issue, but valgrind somehow puzzled with
malformed sections when ro_after_init section used, and results
unresolved symbols after a valgrind run.

This commit fixes torvalds#349.

Fixes: d2ec3f7 ("pty: make ptmx file ops read-only after init")

The commit uses (d07a980, s390: add
proper __ro_after_init support) as a reference.

Signed-off-by: Hajime Tazaki <[email protected]>
fengguang pushed a commit to 0day-ci/linux that referenced this pull request Mar 15, 2021
@intel-lab-lkp
Staging: rtl8723bs: fix spaces in odm.c
0da988e 
This commit fixes the following checkpatch.pl errors:

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#285: FILE: ./hal/odm.c:285:
    +void odm_CommonInfoSelfInit(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#287: FILE: ./hal/odm.c:287:
    +void odm_CommonInfoSelfUpdate(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#289: FILE: ./hal/odm.c:289:
    +void odm_CmnInfoInit_Debug(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#291: FILE: ./hal/odm.c:291:
    +void odm_BasicDbgMessage(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#305: FILE: ./hal/odm.c:305:
    +void odm_RefreshRateAdaptiveMaskCE(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#309: FILE: ./hal/odm.c:309:
    +void odm_RSSIMonitorInit(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#311: FILE: ./hal/odm.c:311:
    +void odm_RSSIMonitorCheckCE(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#313: FILE: ./hal/odm.c:313:
    +void odm_RSSIMonitorCheck(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#315: FILE: ./hal/odm.c:315:
    +void odm_SwAntDetectInit(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#323: FILE: ./hal/odm.c:323:
    +void odm_RefreshRateAdaptiveMask(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#325: FILE: ./hal/odm.c:325:
    +void ODM_TXPowerTrackingCheck(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#327: FILE: ./hal/odm.c:327:
    +void odm_RateAdaptiveMaskInit(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#330: FILE: ./hal/odm.c:330:
    +void odm_TXPowerTrackingInit(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#338: FILE: ./hal/odm.c:338:
    +void odm_InitHybridAntDiv(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#341: FILE: ./hal/odm.c:341:
    +	struct DM_ODM_T * pDM_Odm,

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#349: FILE: ./hal/odm.c:349:
    +void odm_SetRxIdleAnt(struct DM_ODM_T * pDM_Odm, u8 Ant, bool bDualPath);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#353: FILE: ./hal/odm.c:353:
    +void odm_HwAntDiv(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#363: FILE: ./hal/odm.c:363:
    +void ODM_DMInit(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#393: FILE: ./hal/odm.c:393:
    +void ODM_DMWatchdog(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#420: FILE: ./hal/odm.c:420:
    +		struct DIG_T * pDM_DigTable = &pDM_Odm->DM_DigTable;

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#448: FILE: ./hal/odm.c:448:
    +void ODM_CmnInfoInit(struct DM_ODM_T * pDM_Odm, enum ODM_CMNINFO_E CmnInfo, u32 Value)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#560: FILE: ./hal/odm.c:560:
    +void ODM_CmnInfoHook(struct DM_ODM_T * pDM_Odm, enum ODM_CMNINFO_E CmnInfo, void *pValue)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#689: FILE: ./hal/odm.c:689:
    +	struct DM_ODM_T * pDM_Odm,

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#717: FILE: ./hal/odm.c:717:
    +void ODM_CmnInfoUpdate(struct DM_ODM_T * pDM_Odm, u32 CmnInfo, u64 Value)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#831: FILE: ./hal/odm.c:831:
    +void odm_CommonInfoSelfInit(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#841: FILE: ./hal/odm.c:841:
    +void odm_CommonInfoSelfUpdate(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#867: FILE: ./hal/odm.c:867:
    +void odm_CmnInfoInit_Debug(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#888: FILE: ./hal/odm.c:888:
    +void odm_BasicDbgMessage(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#935: FILE: ./hal/odm.c:935:
    +void odm_RateAdaptiveMaskInit(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#937: FILE: ./hal/odm.c:937:
    +	struct ODM_RATE_ADAPTIVE * pOdmRA = &pDM_Odm->RateAdaptive;

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#953: FILE: ./hal/odm.c:953:
    +	struct DM_ODM_T * pDM_Odm,

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#1083: FILE: ./hal/odm.c:1083:
    +void odm_RefreshRateAdaptiveMask(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1094: FILE: ./hal/odm.c:1094:
    +void odm_RefreshRateAdaptiveMaskCE(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1131: FILE: ./hal/odm.c:1131:
    +	struct DM_ODM_T * pDM_Odm,

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1137: FILE: ./hal/odm.c:1137:
    +	struct ODM_RATE_ADAPTIVE * pRA = &pDM_Odm->RateAdaptive;

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1196: FILE: ./hal/odm.c:1196:
    +void odm_RSSIMonitorInit(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1198: FILE: ./hal/odm.c:1198:
    +	struct RA_T * pRA_Table = &pDM_Odm->DM_RA_Table;

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1204: FILE: ./hal/odm.c:1204:
    +void odm_RSSIMonitorCheck(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1217: FILE: ./hal/odm.c:1217:
    +	struct DM_ODM_T * pDM_Odm = &(pHalData->odmpriv);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1234: FILE: ./hal/odm.c:1234:
    +void odm_RSSIMonitorCheckCE(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1243: FILE: ./hal/odm.c:1243:
    +	struct RA_T * pRA_Table = &pDM_Odm->DM_RA_Table;

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1306: FILE: ./hal/odm.c:1306:
    +static u8 getSwingIndex(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1330: FILE: ./hal/odm.c:1330:
    +void odm_TXPowerTrackingInit(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1374: FILE: ./hal/odm.c:1374:
    +void ODM_TXPowerTrackingCheck(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1398: FILE: ./hal/odm.c:1398:
    +void odm_SwAntDetectInit(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1400: FILE: ./hal/odm.c:1400:
    +	struct SWAT_T * pDM_SWAT_Table = &pDM_Odm->DM_SWAT_Table;

Signed-off-by: Marco Cesati <[email protected]>
fengguang pushed a commit to 0day-ci/linux that referenced this pull request Mar 16, 2021
@gregkh
Staging: rtl8723bs: fix spaces in odm.c
8c86ab1 
This commit fixes the following checkpatch.pl errors:

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#285: FILE: ./hal/odm.c:285:
    +void odm_CommonInfoSelfInit(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#287: FILE: ./hal/odm.c:287:
    +void odm_CommonInfoSelfUpdate(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#289: FILE: ./hal/odm.c:289:
    +void odm_CmnInfoInit_Debug(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#291: FILE: ./hal/odm.c:291:
    +void odm_BasicDbgMessage(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#305: FILE: ./hal/odm.c:305:
    +void odm_RefreshRateAdaptiveMaskCE(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#309: FILE: ./hal/odm.c:309:
    +void odm_RSSIMonitorInit(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#311: FILE: ./hal/odm.c:311:
    +void odm_RSSIMonitorCheckCE(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#313: FILE: ./hal/odm.c:313:
    +void odm_RSSIMonitorCheck(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#315: FILE: ./hal/odm.c:315:
    +void odm_SwAntDetectInit(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#323: FILE: ./hal/odm.c:323:
    +void odm_RefreshRateAdaptiveMask(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#325: FILE: ./hal/odm.c:325:
    +void ODM_TXPowerTrackingCheck(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#327: FILE: ./hal/odm.c:327:
    +void odm_RateAdaptiveMaskInit(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#330: FILE: ./hal/odm.c:330:
    +void odm_TXPowerTrackingInit(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#338: FILE: ./hal/odm.c:338:
    +void odm_InitHybridAntDiv(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#341: FILE: ./hal/odm.c:341:
    +	struct DM_ODM_T * pDM_Odm,

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#349: FILE: ./hal/odm.c:349:
    +void odm_SetRxIdleAnt(struct DM_ODM_T * pDM_Odm, u8 Ant, bool bDualPath);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#353: FILE: ./hal/odm.c:353:
    +void odm_HwAntDiv(struct DM_ODM_T * pDM_Odm);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#363: FILE: ./hal/odm.c:363:
    +void ODM_DMInit(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#393: FILE: ./hal/odm.c:393:
    +void ODM_DMWatchdog(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#420: FILE: ./hal/odm.c:420:
    +		struct DIG_T * pDM_DigTable = &pDM_Odm->DM_DigTable;

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#448: FILE: ./hal/odm.c:448:
    +void ODM_CmnInfoInit(struct DM_ODM_T * pDM_Odm, enum ODM_CMNINFO_E CmnInfo, u32 Value)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#560: FILE: ./hal/odm.c:560:
    +void ODM_CmnInfoHook(struct DM_ODM_T * pDM_Odm, enum ODM_CMNINFO_E CmnInfo, void *pValue)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#689: FILE: ./hal/odm.c:689:
    +	struct DM_ODM_T * pDM_Odm,

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#717: FILE: ./hal/odm.c:717:
    +void ODM_CmnInfoUpdate(struct DM_ODM_T * pDM_Odm, u32 CmnInfo, u64 Value)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#831: FILE: ./hal/odm.c:831:
    +void odm_CommonInfoSelfInit(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#841: FILE: ./hal/odm.c:841:
    +void odm_CommonInfoSelfUpdate(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#867: FILE: ./hal/odm.c:867:
    +void odm_CmnInfoInit_Debug(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#888: FILE: ./hal/odm.c:888:
    +void odm_BasicDbgMessage(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#935: FILE: ./hal/odm.c:935:
    +void odm_RateAdaptiveMaskInit(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#937: FILE: ./hal/odm.c:937:
    +	struct ODM_RATE_ADAPTIVE * pOdmRA = &pDM_Odm->RateAdaptive;

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#953: FILE: ./hal/odm.c:953:
    +	struct DM_ODM_T * pDM_Odm,

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    torvalds#1083: FILE: ./hal/odm.c:1083:
    +void odm_RefreshRateAdaptiveMask(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1094: FILE: ./hal/odm.c:1094:
    +void odm_RefreshRateAdaptiveMaskCE(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1131: FILE: ./hal/odm.c:1131:
    +	struct DM_ODM_T * pDM_Odm,

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1137: FILE: ./hal/odm.c:1137:
    +	struct ODM_RATE_ADAPTIVE * pRA = &pDM_Odm->RateAdaptive;

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1196: FILE: ./hal/odm.c:1196:
    +void odm_RSSIMonitorInit(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1198: FILE: ./hal/odm.c:1198:
    +	struct RA_T * pRA_Table = &pDM_Odm->DM_RA_Table;

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1204: FILE: ./hal/odm.c:1204:
    +void odm_RSSIMonitorCheck(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1217: FILE: ./hal/odm.c:1217:
    +	struct DM_ODM_T * pDM_Odm = &(pHalData->odmpriv);

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1234: FILE: ./hal/odm.c:1234:
    +void odm_RSSIMonitorCheckCE(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1243: FILE: ./hal/odm.c:1243:
    +	struct RA_T * pRA_Table = &pDM_Odm->DM_RA_Table;

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1306: FILE: ./hal/odm.c:1306:
    +static u8 getSwingIndex(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1330: FILE: ./hal/odm.c:1330:
    +void odm_TXPowerTrackingInit(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1374: FILE: ./hal/odm.c:1374:
    +void ODM_TXPowerTrackingCheck(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1398: FILE: ./hal/odm.c:1398:
    +void odm_SwAntDetectInit(struct DM_ODM_T * pDM_Odm)

    ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
    #1400: FILE: ./hal/odm.c:1400:
    +	struct SWAT_T * pDM_SWAT_Table = &pDM_Odm->DM_SWAT_Table;

Reviewed-by: Dan Carpenter <[email protected]>
Signed-off-by: Marco Cesati <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this pull request Oct 20, 2022
@LiBaokun96 @intel-lab-lkp
ext4: fix bug_on in __es_tree_search caused by wrong boot loader inode
2502f7b 
We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, it is marked as bad_inode
in ext4_iget because imode is abnormal. After initialization, imode is set
to S_IFREG. In this case, the ext4_ext_check_inode function is used for
check, and no issue is triggered. Therefore, we can determine whether an
inode needs to be initialized by checking whether the boot loader inode is
a bad inode instead of i_nlink.

Signed-off-by: Baokun Li <[email protected]>
intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this pull request Oct 21, 2022
@LiBaokun96 @intel-lab-lkp
ext4: fix bug_on in __es_tree_search caused by wrong boot loader inode
5d4f913 
We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this pull request Oct 26, 2022
@LiBaokun96 @intel-lab-lkp
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
36d2f9f 
We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this pull request Dec 7, 2022
@LiBaokun96 @tytso
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
db14233 
We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
ptr1337 pushed a commit to CachyOS/linux that referenced this pull request Dec 12, 2022
@LiBaokun96 @ptr1337
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
4447591 
We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
torvalds pushed a commit that referenced this pull request Dec 13, 2022
@LiBaokun96 @tytso
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
991ed01 
We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty #349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
dakkshesh07 pushed a commit to Neutron-Projects/kernel-dejavu that referenced this pull request Dec 30, 2022
@LiBaokun96 @dakkshesh07
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
988a038 
We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Dakkshesh <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
fb9e5dd 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
c82cce0 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
9b8e93e 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
740ea81 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
6818aa6 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
21ceb2e 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
4f6559c 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
9c5a84b 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
135595b 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
e929a5c 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
964d0ea 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
56df1f7 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
f64b57f 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
22df94e 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
2d0d1e1 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
2ee2577 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 4, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
649ded8 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 17, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
2056c13 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 17, 2023
@LiBaokun96 @gregkh
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
0de5b9d 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 17, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
ff05b0a 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 17, 2023
@LiBaokun96 @gregkh
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
7b6fc6d 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 17, 2023
@LiBaokun96 @gregkh
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
5a85236 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 17, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
138ddb3 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 17, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
fabbac7 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 17, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
6edfedb 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 17, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
4d173aa 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 17, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
dfcb8ba 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 17, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
36bcc81 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
kikei pushed a commit to kikei/linux that referenced this pull request Jan 17, 2023
@jankara @axboe
writeback: Write dirty times for WB_SYNC_ALL writeback
dc5ff2b 
Currently we take care to handle I_DIRTY_TIME in vfs_fsync() and
queue_io() so that inodes which have only dirty timestamps are properly
written on fsync(2) and sync(2). However there are other call sites -
most notably going through write_inode_now() - which expect inode to be
clean after WB_SYNC_ALL writeback. This is not currently true as we do
not clear I_DIRTY_TIME in __writeback_single_inode() even for
WB_SYNC_ALL writeback in all the cases. This then resulted in the
following oops because bdev_write_inode() did not clean the inode and
writeback code later stumbled over a dirty inode with detached wb.

  general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN
  Modules linked in:
  CPU: 3 PID: 32 Comm: kworker/u10:1 Not tainted 4.6.0-rc3+ torvalds#349
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
  Workqueue: writeback wb_workfn (flush-11:0)
  task: ffff88006ccf1840 ti: ffff88006cda8000 task.ti: ffff88006cda8000
  RIP: 0010:[<ffffffff818884d2>]  [<ffffffff818884d2>]
  locked_inode_to_wb_and_lock_list+0xa2/0x750
  RSP: 0018:ffff88006cdaf7d0  EFLAGS: 00010246
  RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88006ccf2050
  RDX: 0000000000000000 RSI: 000000114c8a8484 RDI: 0000000000000286
  RBP: ffff88006cdaf820 R08: ffff88006ccf1840 R09: 0000000000000000
  R10: 000229915090805f R11: 0000000000000001 R12: ffff88006a72f5e0
  R13: dffffc0000000000 R14: ffffed000d4e5eed R15: ffffffff8830cf40
  FS:  0000000000000000(0000) GS:ffff88006d500000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000003301bf8 CR3: 000000006368f000 CR4: 00000000000006e0
  DR0: 0000000000001ec9 DR1: 0000000000000000 DR2: 0000000000000000
  DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
  Stack:
   ffff88006a72f680 ffff88006a72f768 ffff8800671230d8 03ff88006cdaf948
   ffff88006a72f668 ffff88006a72f5e0 ffff8800671230d8 ffff88006cdaf948
   ffff880065b90cc8 ffff880067123100 ffff88006cdaf970 ffffffff8188e12e
  Call Trace:
   [<     inline     >] inode_to_wb_and_lock_list fs/fs-writeback.c:309
   [<ffffffff8188e12e>] writeback_sb_inodes+0x4de/0x1250 fs/fs-writeback.c:1554
   [<ffffffff8188efa4>] __writeback_inodes_wb+0x104/0x1e0 fs/fs-writeback.c:1600
   [<ffffffff8188f9ae>] wb_writeback+0x7ce/0xc90 fs/fs-writeback.c:1709
   [<     inline     >] wb_do_writeback fs/fs-writeback.c:1844
   [<ffffffff81891079>] wb_workfn+0x2f9/0x1000 fs/fs-writeback.c:1884
   [<ffffffff813bcd1e>] process_one_work+0x78e/0x15c0 kernel/workqueue.c:2094
   [<ffffffff813bdc2b>] worker_thread+0xdb/0xfc0 kernel/workqueue.c:2228
   [<ffffffff813cdeef>] kthread+0x23f/0x2d0 drivers/block/aoe/aoecmd.c:1303
   [<ffffffff867bc5d2>] ret_from_fork+0x22/0x50 arch/x86/entry/entry_64.S:392
  Code: 05 94 4a a8 06 85 c0 0f 85 03 03 00 00 e8 07 15 d0 ff 41 80 3e
  00 0f 85 64 06 00 00 49 8b 9c 24 88 01 00 00 48 89 d8 48 c1 e8 03 <42>
  80 3c 28 00 0f 85 17 06 00 00 48 8b 03 48 83 c0 50 48 39 c3
  RIP  [<     inline     >] wb_get include/linux/backing-dev-defs.h:212
  RIP  [<ffffffff818884d2>] locked_inode_to_wb_and_lock_list+0xa2/0x750
  fs/fs-writeback.c:281
   RSP <ffff88006cdaf7d0>
  ---[ end trace 986a4d314dcb2694 ]---

Fix the problem by making sure __writeback_single_inode() writes inode
only with dirty times in WB_SYNC_ALL mode.

Reported-by: Dmitry Vyukov <[email protected]>
Tested-by: Laurent Dufour <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 18, 2023
@LiBaokun96 @gregkh
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
a95ba36 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 18, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
6364c25 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 18, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
af01514 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 18, 2023
@LiBaokun96 @gregkh
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
78e335f 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 18, 2023
@LiBaokun96 @gregkh
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
5f8d36a 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ammarfaizi2 pushed a commit to ammarfaizi2/linux-fork that referenced this pull request Jan 18, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
10ebc83 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
ThatsItForTheOtherOne pushed a commit to Wii-Linux/wii-linux-ngx that referenced this pull request Oct 16, 2023
@LiBaokun96
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
91c683d 
commit 991ed01 upstream.

We got a issue as fllows:
==================================================================
 kernel BUG at fs/ext4/extents_status.c:203!
 invalid opcode: 0000 [#1] PREEMPT SMP
 CPU: 1 PID: 945 Comm: cat Not tainted 6.0.0-next-20221007-dirty torvalds#349
 RIP: 0010:ext4_es_end.isra.0+0x34/0x42
 RSP: 0018:ffffc9000143b768 EFLAGS: 00010203
 RAX: 0000000000000000 RBX: ffff8881769cd0b8 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffff8fc27cf7 RDI: 00000000ffffffff
 RBP: ffff8881769cd0bc R08: 0000000000000000 R09: ffffc9000143b5f8
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881769cd0a0
 R13: ffff8881768e5668 R14: 00000000768e52f0 R15: 0000000000000000
 FS: 00007f359f7f05c0(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f359f5a2000 CR3: 000000017130c000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  __es_tree_search.isra.0+0x6d/0xf5
  ext4_es_cache_extent+0xfa/0x230
  ext4_cache_extents+0xd2/0x110
  ext4_find_extent+0x5d5/0x8c0
  ext4_ext_map_blocks+0x9c/0x1d30
  ext4_map_blocks+0x431/0xa50
  ext4_mpage_readpages+0x48e/0xe40
  ext4_readahead+0x47/0x50
  read_pages+0x82/0x530
  page_cache_ra_unbounded+0x199/0x2a0
  do_page_cache_ra+0x47/0x70
  page_cache_ra_order+0x242/0x400
  ondemand_readahead+0x1e8/0x4b0
  page_cache_sync_ra+0xf4/0x110
  filemap_get_pages+0x131/0xb20
  filemap_read+0xda/0x4b0
  generic_file_read_iter+0x13a/0x250
  ext4_file_read_iter+0x59/0x1d0
  vfs_read+0x28f/0x460
  ksys_read+0x73/0x160
  __x64_sys_read+0x1e/0x30
  do_syscall_64+0x35/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  </TASK>
==================================================================

In the above issue, ioctl invokes the swap_inode_boot_loader function to
swap inode<5> and inode<12>. However, inode<5> contain incorrect imode and
disordered extents, and i_nlink is set to 1. The extents check for inode in
the ext4_iget function can be bypassed bacause 5 is EXT4_BOOT_LOADER_INO.
While links_count is set to 1, the extents are not initialized in
swap_inode_boot_loader. After the ioctl command is executed successfully,
the extents are swapped to inode<12>, in this case, run the `cat` command
to view inode<12>. And Bug_ON is triggered due to the incorrect extents.

When the boot loader inode is not initialized, its imode can be one of the
following:
1) the imode is a bad type, which is marked as bad_inode in ext4_iget and
   set to S_IFREG.
2) the imode is good type but not S_IFREG.
3) the imode is S_IFREG.

The BUG_ON may be triggered by bypassing the check in cases 1 and 2.
Therefore, when the boot loader inode is bad_inode or its imode is not
S_IFREG, initialize the inode to avoid triggering the BUG.

Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Ulrich Hecht <[email protected]>
intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this pull request Oct 27, 2023
@chenhengqi @intel-lab-lkp
selftests/bpf: Enable cpu v4 tests for LoongArch
cf7389b 
Enable cpu v4 tests for LoongArch. Currently, we don't
have BPF trampoline in LoongArch JIT, so the fentry
test `test_ptr_struct_arg` still failed, will followup.
Test result attached below:

  # ./test_progs -t verifier_sdiv,verifier_movsx,verifier_ldsx,verifier_gotol,verifier_bswap
  torvalds#316/1   verifier_bswap/BSWAP, 16:OK
  torvalds#316/2   verifier_bswap/BSWAP, 16 @unpriv:OK
  torvalds#316/3   verifier_bswap/BSWAP, 32:OK
  torvalds#316/4   verifier_bswap/BSWAP, 32 @unpriv:OK
  torvalds#316/5   verifier_bswap/BSWAP, 64:OK
  torvalds#316/6   verifier_bswap/BSWAP, 64 @unpriv:OK
  torvalds#316     verifier_bswap:OK
  torvalds#330/1   verifier_gotol/gotol, small_imm:OK
  torvalds#330/2   verifier_gotol/gotol, small_imm @unpriv:OK
  torvalds#330     verifier_gotol:OK
  torvalds#338/1   verifier_ldsx/LDSX, S8:OK
  torvalds#338/2   verifier_ldsx/LDSX, S8 @unpriv:OK
  torvalds#338/3   verifier_ldsx/LDSX, S16:OK
  torvalds#338/4   verifier_ldsx/LDSX, S16 @unpriv:OK
  torvalds#338/5   verifier_ldsx/LDSX, S32:OK
  torvalds#338/6   verifier_ldsx/LDSX, S32 @unpriv:OK
  torvalds#338/7   verifier_ldsx/LDSX, S8 range checking, privileged:OK
  torvalds#338/8   verifier_ldsx/LDSX, S16 range checking:OK
  torvalds#338/9   verifier_ldsx/LDSX, S16 range checking @unpriv:OK
  torvalds#338/10  verifier_ldsx/LDSX, S32 range checking:OK
  torvalds#338/11  verifier_ldsx/LDSX, S32 range checking @unpriv:OK
  torvalds#338     verifier_ldsx:OK
  torvalds#349/1   verifier_movsx/MOV32SX, S8:OK
  torvalds#349/2   verifier_movsx/MOV32SX, S8 @unpriv:OK
  torvalds#349/3   verifier_movsx/MOV32SX, S16:OK
  torvalds#349/4   verifier_movsx/MOV32SX, S16 @unpriv:OK
  torvalds#349/5   verifier_movsx/MOV64SX, S8:OK
  torvalds#349/6   verifier_movsx/MOV64SX, S8 @unpriv:OK
  torvalds#349/7   verifier_movsx/MOV64SX, S16:OK
  torvalds#349/8   verifier_movsx/MOV64SX, S16 @unpriv:OK
  torvalds#349/9   verifier_movsx/MOV64SX, S32:OK
  torvalds#349/10  verifier_movsx/MOV64SX, S32 @unpriv:OK
  torvalds#349/11  verifier_movsx/MOV32SX, S8, range_check:OK
  torvalds#349/12  verifier_movsx/MOV32SX, S8, range_check @unpriv:OK
  torvalds#349/13  verifier_movsx/MOV32SX, S16, range_check:OK
  torvalds#349/14  verifier_movsx/MOV32SX, S16, range_check @unpriv:OK
  torvalds#349/15  verifier_movsx/MOV32SX, S16, range_check 2:OK
  torvalds#349/16  verifier_movsx/MOV32SX, S16, range_check 2 @unpriv:OK
  torvalds#349/17  verifier_movsx/MOV64SX, S8, range_check:OK
  torvalds#349/18  verifier_movsx/MOV64SX, S8, range_check @unpriv:OK
  torvalds#349/19  verifier_movsx/MOV64SX, S16, range_check:OK
  torvalds#349/20  verifier_movsx/MOV64SX, S16, range_check @unpriv:OK
  torvalds#349/21  verifier_movsx/MOV64SX, S32, range_check:OK
  torvalds#349/22  verifier_movsx/MOV64SX, S32, range_check @unpriv:OK
  torvalds#349/23  verifier_movsx/MOV64SX, S16, R10 Sign Extension:OK
  torvalds#349/24  verifier_movsx/MOV64SX, S16, R10 Sign Extension @unpriv:OK
  torvalds#349     verifier_movsx:OK
  torvalds#361/1   verifier_sdiv/SDIV32, non-zero imm divisor, check 1:OK
  torvalds#361/2   verifier_sdiv/SDIV32, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/3   verifier_sdiv/SDIV32, non-zero imm divisor, check 2:OK
  torvalds#361/4   verifier_sdiv/SDIV32, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/5   verifier_sdiv/SDIV32, non-zero imm divisor, check 3:OK
  torvalds#361/6   verifier_sdiv/SDIV32, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/7   verifier_sdiv/SDIV32, non-zero imm divisor, check 4:OK
  torvalds#361/8   verifier_sdiv/SDIV32, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/9   verifier_sdiv/SDIV32, non-zero imm divisor, check 5:OK
  torvalds#361/10  verifier_sdiv/SDIV32, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/11  verifier_sdiv/SDIV32, non-zero imm divisor, check 6:OK
  torvalds#361/12  verifier_sdiv/SDIV32, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/13  verifier_sdiv/SDIV32, non-zero imm divisor, check 7:OK
  torvalds#361/14  verifier_sdiv/SDIV32, non-zero imm divisor, check 7 @unpriv:OK
  torvalds#361/15  verifier_sdiv/SDIV32, non-zero imm divisor, check 8:OK
  torvalds#361/16  verifier_sdiv/SDIV32, non-zero imm divisor, check 8 @unpriv:OK
  torvalds#361/17  verifier_sdiv/SDIV32, non-zero reg divisor, check 1:OK
  torvalds#361/18  verifier_sdiv/SDIV32, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/19  verifier_sdiv/SDIV32, non-zero reg divisor, check 2:OK
  torvalds#361/20  verifier_sdiv/SDIV32, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/21  verifier_sdiv/SDIV32, non-zero reg divisor, check 3:OK
  torvalds#361/22  verifier_sdiv/SDIV32, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/23  verifier_sdiv/SDIV32, non-zero reg divisor, check 4:OK
  torvalds#361/24  verifier_sdiv/SDIV32, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/25  verifier_sdiv/SDIV32, non-zero reg divisor, check 5:OK
  torvalds#361/26  verifier_sdiv/SDIV32, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/27  verifier_sdiv/SDIV32, non-zero reg divisor, check 6:OK
  torvalds#361/28  verifier_sdiv/SDIV32, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/29  verifier_sdiv/SDIV32, non-zero reg divisor, check 7:OK
  torvalds#361/30  verifier_sdiv/SDIV32, non-zero reg divisor, check 7 @unpriv:OK
  torvalds#361/31  verifier_sdiv/SDIV32, non-zero reg divisor, check 8:OK
  torvalds#361/32  verifier_sdiv/SDIV32, non-zero reg divisor, check 8 @unpriv:OK
  torvalds#361/33  verifier_sdiv/SDIV64, non-zero imm divisor, check 1:OK
  torvalds#361/34  verifier_sdiv/SDIV64, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/35  verifier_sdiv/SDIV64, non-zero imm divisor, check 2:OK
  torvalds#361/36  verifier_sdiv/SDIV64, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/37  verifier_sdiv/SDIV64, non-zero imm divisor, check 3:OK
  torvalds#361/38  verifier_sdiv/SDIV64, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/39  verifier_sdiv/SDIV64, non-zero imm divisor, check 4:OK
  torvalds#361/40  verifier_sdiv/SDIV64, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/41  verifier_sdiv/SDIV64, non-zero imm divisor, check 5:OK
  torvalds#361/42  verifier_sdiv/SDIV64, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/43  verifier_sdiv/SDIV64, non-zero imm divisor, check 6:OK
  torvalds#361/44  verifier_sdiv/SDIV64, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/45  verifier_sdiv/SDIV64, non-zero reg divisor, check 1:OK
  torvalds#361/46  verifier_sdiv/SDIV64, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/47  verifier_sdiv/SDIV64, non-zero reg divisor, check 2:OK
  torvalds#361/48  verifier_sdiv/SDIV64, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/49  verifier_sdiv/SDIV64, non-zero reg divisor, check 3:OK
  torvalds#361/50  verifier_sdiv/SDIV64, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/51  verifier_sdiv/SDIV64, non-zero reg divisor, check 4:OK
  torvalds#361/52  verifier_sdiv/SDIV64, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/53  verifier_sdiv/SDIV64, non-zero reg divisor, check 5:OK
  torvalds#361/54  verifier_sdiv/SDIV64, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/55  verifier_sdiv/SDIV64, non-zero reg divisor, check 6:OK
  torvalds#361/56  verifier_sdiv/SDIV64, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/57  verifier_sdiv/SMOD32, non-zero imm divisor, check 1:OK
  torvalds#361/58  verifier_sdiv/SMOD32, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/59  verifier_sdiv/SMOD32, non-zero imm divisor, check 2:OK
  torvalds#361/60  verifier_sdiv/SMOD32, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/61  verifier_sdiv/SMOD32, non-zero imm divisor, check 3:OK
  torvalds#361/62  verifier_sdiv/SMOD32, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/63  verifier_sdiv/SMOD32, non-zero imm divisor, check 4:OK
  torvalds#361/64  verifier_sdiv/SMOD32, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/65  verifier_sdiv/SMOD32, non-zero imm divisor, check 5:OK
  torvalds#361/66  verifier_sdiv/SMOD32, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/67  verifier_sdiv/SMOD32, non-zero imm divisor, check 6:OK
  torvalds#361/68  verifier_sdiv/SMOD32, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/69  verifier_sdiv/SMOD32, non-zero reg divisor, check 1:OK
  torvalds#361/70  verifier_sdiv/SMOD32, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/71  verifier_sdiv/SMOD32, non-zero reg divisor, check 2:OK
  torvalds#361/72  verifier_sdiv/SMOD32, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/73  verifier_sdiv/SMOD32, non-zero reg divisor, check 3:OK
  torvalds#361/74  verifier_sdiv/SMOD32, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/75  verifier_sdiv/SMOD32, non-zero reg divisor, check 4:OK
  torvalds#361/76  verifier_sdiv/SMOD32, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/77  verifier_sdiv/SMOD32, non-zero reg divisor, check 5:OK
  torvalds#361/78  verifier_sdiv/SMOD32, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/79  verifier_sdiv/SMOD32, non-zero reg divisor, check 6:OK
  torvalds#361/80  verifier_sdiv/SMOD32, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/81  verifier_sdiv/SMOD64, non-zero imm divisor, check 1:OK
  torvalds#361/82  verifier_sdiv/SMOD64, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/83  verifier_sdiv/SMOD64, non-zero imm divisor, check 2:OK
  torvalds#361/84  verifier_sdiv/SMOD64, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/85  verifier_sdiv/SMOD64, non-zero imm divisor, check 3:OK
  torvalds#361/86  verifier_sdiv/SMOD64, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/87  verifier_sdiv/SMOD64, non-zero imm divisor, check 4:OK
  torvalds#361/88  verifier_sdiv/SMOD64, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/89  verifier_sdiv/SMOD64, non-zero imm divisor, check 5:OK
  torvalds#361/90  verifier_sdiv/SMOD64, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/91  verifier_sdiv/SMOD64, non-zero imm divisor, check 6:OK
  torvalds#361/92  verifier_sdiv/SMOD64, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/93  verifier_sdiv/SMOD64, non-zero imm divisor, check 7:OK
  torvalds#361/94  verifier_sdiv/SMOD64, non-zero imm divisor, check 7 @unpriv:OK
  torvalds#361/95  verifier_sdiv/SMOD64, non-zero imm divisor, check 8:OK
  torvalds#361/96  verifier_sdiv/SMOD64, non-zero imm divisor, check 8 @unpriv:OK
  torvalds#361/97  verifier_sdiv/SMOD64, non-zero reg divisor, check 1:OK
  torvalds#361/98  verifier_sdiv/SMOD64, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/99  verifier_sdiv/SMOD64, non-zero reg divisor, check 2:OK
  torvalds#361/100 verifier_sdiv/SMOD64, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/101 verifier_sdiv/SMOD64, non-zero reg divisor, check 3:OK
  torvalds#361/102 verifier_sdiv/SMOD64, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/103 verifier_sdiv/SMOD64, non-zero reg divisor, check 4:OK
  torvalds#361/104 verifier_sdiv/SMOD64, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/105 verifier_sdiv/SMOD64, non-zero reg divisor, check 5:OK
  torvalds#361/106 verifier_sdiv/SMOD64, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/107 verifier_sdiv/SMOD64, non-zero reg divisor, check 6:OK
  torvalds#361/108 verifier_sdiv/SMOD64, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/109 verifier_sdiv/SMOD64, non-zero reg divisor, check 7:OK
  torvalds#361/110 verifier_sdiv/SMOD64, non-zero reg divisor, check 7 @unpriv:OK
  torvalds#361/111 verifier_sdiv/SMOD64, non-zero reg divisor, check 8:OK
  torvalds#361/112 verifier_sdiv/SMOD64, non-zero reg divisor, check 8 @unpriv:OK
  torvalds#361/113 verifier_sdiv/SDIV32, zero divisor:OK
  torvalds#361/114 verifier_sdiv/SDIV32, zero divisor @unpriv:OK
  torvalds#361/115 verifier_sdiv/SDIV64, zero divisor:OK
  torvalds#361/116 verifier_sdiv/SDIV64, zero divisor @unpriv:OK
  torvalds#361/117 verifier_sdiv/SMOD32, zero divisor:OK
  torvalds#361/118 verifier_sdiv/SMOD32, zero divisor @unpriv:OK
  torvalds#361/119 verifier_sdiv/SMOD64, zero divisor:OK
  torvalds#361/120 verifier_sdiv/SMOD64, zero divisor @unpriv:OK
  torvalds#361     verifier_sdiv:OK
  Summary: 5/163 PASSED, 0 SKIPPED, 0 FAILED

  # ./test_progs -t ldsx_insn
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__open 0 nsec
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__load 0 nsec
  libbpf: prog 'test_ptr_struct_arg': failed to attach: ERROR: strerror_r(-524)=22
  libbpf: prog 'test_ptr_struct_arg': failed to auto-attach: -524
  test_map_val_and_probed_memory:FAIL:test_ldsx_insn__attach unexpected error: -524 (errno 524)
  torvalds#116/1   ldsx_insn/map_val and probed_memory:FAIL
  torvalds#116/2   ldsx_insn/ctx_member_sign_ext:OK
  torvalds#116/3   ldsx_insn/ctx_member_narrow_sign_ext:OK
  torvalds#116     ldsx_insn:FAIL

  All error logs:
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__open 0 nsec
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__load 0 nsec
  libbpf: prog 'test_ptr_struct_arg': failed to attach: ERROR: strerror_r(-524)=22
  libbpf: prog 'test_ptr_struct_arg': failed to auto-attach: -524
  test_map_val_and_probed_memory:FAIL:test_ldsx_insn__attach unexpected error: -524 (errno 524)
  torvalds#116/1   ldsx_insn/map_val and probed_memory:FAIL
  torvalds#116     ldsx_insn:FAIL
  Summary: 0/2 PASSED, 0 SKIPPED, 1 FAILED

Signed-off-by: Hengqi Chen <[email protected]>
mj22226 pushed a commit to mj22226/linux that referenced this pull request Nov 9, 2023
@chenhengqi @chenhuacai
selftests/bpf: Enable cpu v4 tests for LoongArch
1d375d6 
Enable the cpu v4 tests for LoongArch. Currently, we don't have BPF
trampoline in LoongArch JIT, so the fentry test `test_ptr_struct_arg`
still failed, will followup.

Test result attached below:

  # ./test_progs -t verifier_sdiv,verifier_movsx,verifier_ldsx,verifier_gotol,verifier_bswap
  torvalds#316/1   verifier_bswap/BSWAP, 16:OK
  torvalds#316/2   verifier_bswap/BSWAP, 16 @unpriv:OK
  torvalds#316/3   verifier_bswap/BSWAP, 32:OK
  torvalds#316/4   verifier_bswap/BSWAP, 32 @unpriv:OK
  torvalds#316/5   verifier_bswap/BSWAP, 64:OK
  torvalds#316/6   verifier_bswap/BSWAP, 64 @unpriv:OK
  torvalds#316     verifier_bswap:OK
  torvalds#330/1   verifier_gotol/gotol, small_imm:OK
  torvalds#330/2   verifier_gotol/gotol, small_imm @unpriv:OK
  torvalds#330     verifier_gotol:OK
  torvalds#338/1   verifier_ldsx/LDSX, S8:OK
  torvalds#338/2   verifier_ldsx/LDSX, S8 @unpriv:OK
  torvalds#338/3   verifier_ldsx/LDSX, S16:OK
  torvalds#338/4   verifier_ldsx/LDSX, S16 @unpriv:OK
  torvalds#338/5   verifier_ldsx/LDSX, S32:OK
  torvalds#338/6   verifier_ldsx/LDSX, S32 @unpriv:OK
  torvalds#338/7   verifier_ldsx/LDSX, S8 range checking, privileged:OK
  torvalds#338/8   verifier_ldsx/LDSX, S16 range checking:OK
  torvalds#338/9   verifier_ldsx/LDSX, S16 range checking @unpriv:OK
  torvalds#338/10  verifier_ldsx/LDSX, S32 range checking:OK
  torvalds#338/11  verifier_ldsx/LDSX, S32 range checking @unpriv:OK
  torvalds#338     verifier_ldsx:OK
  torvalds#349/1   verifier_movsx/MOV32SX, S8:OK
  torvalds#349/2   verifier_movsx/MOV32SX, S8 @unpriv:OK
  torvalds#349/3   verifier_movsx/MOV32SX, S16:OK
  torvalds#349/4   verifier_movsx/MOV32SX, S16 @unpriv:OK
  torvalds#349/5   verifier_movsx/MOV64SX, S8:OK
  torvalds#349/6   verifier_movsx/MOV64SX, S8 @unpriv:OK
  torvalds#349/7   verifier_movsx/MOV64SX, S16:OK
  torvalds#349/8   verifier_movsx/MOV64SX, S16 @unpriv:OK
  torvalds#349/9   verifier_movsx/MOV64SX, S32:OK
  torvalds#349/10  verifier_movsx/MOV64SX, S32 @unpriv:OK
  torvalds#349/11  verifier_movsx/MOV32SX, S8, range_check:OK
  torvalds#349/12  verifier_movsx/MOV32SX, S8, range_check @unpriv:OK
  torvalds#349/13  verifier_movsx/MOV32SX, S16, range_check:OK
  torvalds#349/14  verifier_movsx/MOV32SX, S16, range_check @unpriv:OK
  torvalds#349/15  verifier_movsx/MOV32SX, S16, range_check 2:OK
  torvalds#349/16  verifier_movsx/MOV32SX, S16, range_check 2 @unpriv:OK
  torvalds#349/17  verifier_movsx/MOV64SX, S8, range_check:OK
  torvalds#349/18  verifier_movsx/MOV64SX, S8, range_check @unpriv:OK
  torvalds#349/19  verifier_movsx/MOV64SX, S16, range_check:OK
  torvalds#349/20  verifier_movsx/MOV64SX, S16, range_check @unpriv:OK
  torvalds#349/21  verifier_movsx/MOV64SX, S32, range_check:OK
  torvalds#349/22  verifier_movsx/MOV64SX, S32, range_check @unpriv:OK
  torvalds#349/23  verifier_movsx/MOV64SX, S16, R10 Sign Extension:OK
  torvalds#349/24  verifier_movsx/MOV64SX, S16, R10 Sign Extension @unpriv:OK
  torvalds#349     verifier_movsx:OK
  torvalds#361/1   verifier_sdiv/SDIV32, non-zero imm divisor, check 1:OK
  torvalds#361/2   verifier_sdiv/SDIV32, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/3   verifier_sdiv/SDIV32, non-zero imm divisor, check 2:OK
  torvalds#361/4   verifier_sdiv/SDIV32, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/5   verifier_sdiv/SDIV32, non-zero imm divisor, check 3:OK
  torvalds#361/6   verifier_sdiv/SDIV32, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/7   verifier_sdiv/SDIV32, non-zero imm divisor, check 4:OK
  torvalds#361/8   verifier_sdiv/SDIV32, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/9   verifier_sdiv/SDIV32, non-zero imm divisor, check 5:OK
  torvalds#361/10  verifier_sdiv/SDIV32, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/11  verifier_sdiv/SDIV32, non-zero imm divisor, check 6:OK
  torvalds#361/12  verifier_sdiv/SDIV32, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/13  verifier_sdiv/SDIV32, non-zero imm divisor, check 7:OK
  torvalds#361/14  verifier_sdiv/SDIV32, non-zero imm divisor, check 7 @unpriv:OK
  torvalds#361/15  verifier_sdiv/SDIV32, non-zero imm divisor, check 8:OK
  torvalds#361/16  verifier_sdiv/SDIV32, non-zero imm divisor, check 8 @unpriv:OK
  torvalds#361/17  verifier_sdiv/SDIV32, non-zero reg divisor, check 1:OK
  torvalds#361/18  verifier_sdiv/SDIV32, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/19  verifier_sdiv/SDIV32, non-zero reg divisor, check 2:OK
  torvalds#361/20  verifier_sdiv/SDIV32, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/21  verifier_sdiv/SDIV32, non-zero reg divisor, check 3:OK
  torvalds#361/22  verifier_sdiv/SDIV32, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/23  verifier_sdiv/SDIV32, non-zero reg divisor, check 4:OK
  torvalds#361/24  verifier_sdiv/SDIV32, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/25  verifier_sdiv/SDIV32, non-zero reg divisor, check 5:OK
  torvalds#361/26  verifier_sdiv/SDIV32, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/27  verifier_sdiv/SDIV32, non-zero reg divisor, check 6:OK
  torvalds#361/28  verifier_sdiv/SDIV32, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/29  verifier_sdiv/SDIV32, non-zero reg divisor, check 7:OK
  torvalds#361/30  verifier_sdiv/SDIV32, non-zero reg divisor, check 7 @unpriv:OK
  torvalds#361/31  verifier_sdiv/SDIV32, non-zero reg divisor, check 8:OK
  torvalds#361/32  verifier_sdiv/SDIV32, non-zero reg divisor, check 8 @unpriv:OK
  torvalds#361/33  verifier_sdiv/SDIV64, non-zero imm divisor, check 1:OK
  torvalds#361/34  verifier_sdiv/SDIV64, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/35  verifier_sdiv/SDIV64, non-zero imm divisor, check 2:OK
  torvalds#361/36  verifier_sdiv/SDIV64, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/37  verifier_sdiv/SDIV64, non-zero imm divisor, check 3:OK
  torvalds#361/38  verifier_sdiv/SDIV64, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/39  verifier_sdiv/SDIV64, non-zero imm divisor, check 4:OK
  torvalds#361/40  verifier_sdiv/SDIV64, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/41  verifier_sdiv/SDIV64, non-zero imm divisor, check 5:OK
  torvalds#361/42  verifier_sdiv/SDIV64, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/43  verifier_sdiv/SDIV64, non-zero imm divisor, check 6:OK
  torvalds#361/44  verifier_sdiv/SDIV64, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/45  verifier_sdiv/SDIV64, non-zero reg divisor, check 1:OK
  torvalds#361/46  verifier_sdiv/SDIV64, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/47  verifier_sdiv/SDIV64, non-zero reg divisor, check 2:OK
  torvalds#361/48  verifier_sdiv/SDIV64, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/49  verifier_sdiv/SDIV64, non-zero reg divisor, check 3:OK
  torvalds#361/50  verifier_sdiv/SDIV64, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/51  verifier_sdiv/SDIV64, non-zero reg divisor, check 4:OK
  torvalds#361/52  verifier_sdiv/SDIV64, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/53  verifier_sdiv/SDIV64, non-zero reg divisor, check 5:OK
  torvalds#361/54  verifier_sdiv/SDIV64, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/55  verifier_sdiv/SDIV64, non-zero reg divisor, check 6:OK
  torvalds#361/56  verifier_sdiv/SDIV64, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/57  verifier_sdiv/SMOD32, non-zero imm divisor, check 1:OK
  torvalds#361/58  verifier_sdiv/SMOD32, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/59  verifier_sdiv/SMOD32, non-zero imm divisor, check 2:OK
  torvalds#361/60  verifier_sdiv/SMOD32, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/61  verifier_sdiv/SMOD32, non-zero imm divisor, check 3:OK
  torvalds#361/62  verifier_sdiv/SMOD32, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/63  verifier_sdiv/SMOD32, non-zero imm divisor, check 4:OK
  torvalds#361/64  verifier_sdiv/SMOD32, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/65  verifier_sdiv/SMOD32, non-zero imm divisor, check 5:OK
  torvalds#361/66  verifier_sdiv/SMOD32, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/67  verifier_sdiv/SMOD32, non-zero imm divisor, check 6:OK
  torvalds#361/68  verifier_sdiv/SMOD32, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/69  verifier_sdiv/SMOD32, non-zero reg divisor, check 1:OK
  torvalds#361/70  verifier_sdiv/SMOD32, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/71  verifier_sdiv/SMOD32, non-zero reg divisor, check 2:OK
  torvalds#361/72  verifier_sdiv/SMOD32, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/73  verifier_sdiv/SMOD32, non-zero reg divisor, check 3:OK
  torvalds#361/74  verifier_sdiv/SMOD32, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/75  verifier_sdiv/SMOD32, non-zero reg divisor, check 4:OK
  torvalds#361/76  verifier_sdiv/SMOD32, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/77  verifier_sdiv/SMOD32, non-zero reg divisor, check 5:OK
  torvalds#361/78  verifier_sdiv/SMOD32, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/79  verifier_sdiv/SMOD32, non-zero reg divisor, check 6:OK
  torvalds#361/80  verifier_sdiv/SMOD32, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/81  verifier_sdiv/SMOD64, non-zero imm divisor, check 1:OK
  torvalds#361/82  verifier_sdiv/SMOD64, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/83  verifier_sdiv/SMOD64, non-zero imm divisor, check 2:OK
  torvalds#361/84  verifier_sdiv/SMOD64, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/85  verifier_sdiv/SMOD64, non-zero imm divisor, check 3:OK
  torvalds#361/86  verifier_sdiv/SMOD64, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/87  verifier_sdiv/SMOD64, non-zero imm divisor, check 4:OK
  torvalds#361/88  verifier_sdiv/SMOD64, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/89  verifier_sdiv/SMOD64, non-zero imm divisor, check 5:OK
  torvalds#361/90  verifier_sdiv/SMOD64, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/91  verifier_sdiv/SMOD64, non-zero imm divisor, check 6:OK
  torvalds#361/92  verifier_sdiv/SMOD64, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/93  verifier_sdiv/SMOD64, non-zero imm divisor, check 7:OK
  torvalds#361/94  verifier_sdiv/SMOD64, non-zero imm divisor, check 7 @unpriv:OK
  torvalds#361/95  verifier_sdiv/SMOD64, non-zero imm divisor, check 8:OK
  torvalds#361/96  verifier_sdiv/SMOD64, non-zero imm divisor, check 8 @unpriv:OK
  torvalds#361/97  verifier_sdiv/SMOD64, non-zero reg divisor, check 1:OK
  torvalds#361/98  verifier_sdiv/SMOD64, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/99  verifier_sdiv/SMOD64, non-zero reg divisor, check 2:OK
  torvalds#361/100 verifier_sdiv/SMOD64, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/101 verifier_sdiv/SMOD64, non-zero reg divisor, check 3:OK
  torvalds#361/102 verifier_sdiv/SMOD64, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/103 verifier_sdiv/SMOD64, non-zero reg divisor, check 4:OK
  torvalds#361/104 verifier_sdiv/SMOD64, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/105 verifier_sdiv/SMOD64, non-zero reg divisor, check 5:OK
  torvalds#361/106 verifier_sdiv/SMOD64, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/107 verifier_sdiv/SMOD64, non-zero reg divisor, check 6:OK
  torvalds#361/108 verifier_sdiv/SMOD64, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/109 verifier_sdiv/SMOD64, non-zero reg divisor, check 7:OK
  torvalds#361/110 verifier_sdiv/SMOD64, non-zero reg divisor, check 7 @unpriv:OK
  torvalds#361/111 verifier_sdiv/SMOD64, non-zero reg divisor, check 8:OK
  torvalds#361/112 verifier_sdiv/SMOD64, non-zero reg divisor, check 8 @unpriv:OK
  torvalds#361/113 verifier_sdiv/SDIV32, zero divisor:OK
  torvalds#361/114 verifier_sdiv/SDIV32, zero divisor @unpriv:OK
  torvalds#361/115 verifier_sdiv/SDIV64, zero divisor:OK
  torvalds#361/116 verifier_sdiv/SDIV64, zero divisor @unpriv:OK
  torvalds#361/117 verifier_sdiv/SMOD32, zero divisor:OK
  torvalds#361/118 verifier_sdiv/SMOD32, zero divisor @unpriv:OK
  torvalds#361/119 verifier_sdiv/SMOD64, zero divisor:OK
  torvalds#361/120 verifier_sdiv/SMOD64, zero divisor @unpriv:OK
  torvalds#361     verifier_sdiv:OK
  Summary: 5/163 PASSED, 0 SKIPPED, 0 FAILED

  # ./test_progs -t ldsx_insn
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__open 0 nsec
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__load 0 nsec
  libbpf: prog 'test_ptr_struct_arg': failed to attach: ERROR: strerror_r(-524)=22
  libbpf: prog 'test_ptr_struct_arg': failed to auto-attach: -524
  test_map_val_and_probed_memory:FAIL:test_ldsx_insn__attach unexpected error: -524 (errno 524)
  torvalds#116/1   ldsx_insn/map_val and probed_memory:FAIL
  torvalds#116/2   ldsx_insn/ctx_member_sign_ext:OK
  torvalds#116/3   ldsx_insn/ctx_member_narrow_sign_ext:OK
  torvalds#116     ldsx_insn:FAIL

  All error logs:
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__open 0 nsec
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__load 0 nsec
  libbpf: prog 'test_ptr_struct_arg': failed to attach: ERROR: strerror_r(-524)=22
  libbpf: prog 'test_ptr_struct_arg': failed to auto-attach: -524
  test_map_val_and_probed_memory:FAIL:test_ldsx_insn__attach unexpected error: -524 (errno 524)
  torvalds#116/1   ldsx_insn/map_val and probed_memory:FAIL
  torvalds#116     ldsx_insn:FAIL
  Summary: 0/2 PASSED, 0 SKIPPED, 1 FAILED

Signed-off-by: Hengqi Chen <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
yetist pushed a commit to loongarchlinux/linux that referenced this pull request Nov 13, 2023
@chenhengqi @yetist
selftests/bpf: Enable cpu v4 tests for LoongArch
36e3cd5 
Enable the cpu v4 tests for LoongArch. Currently, we don't have BPF
trampoline in LoongArch JIT, so the fentry test `test_ptr_struct_arg`
still failed, will followup.

Test result attached below:

  # ./test_progs -t verifier_sdiv,verifier_movsx,verifier_ldsx,verifier_gotol,verifier_bswap
  torvalds#316/1   verifier_bswap/BSWAP, 16:OK
  torvalds#316/2   verifier_bswap/BSWAP, 16 @unpriv:OK
  torvalds#316/3   verifier_bswap/BSWAP, 32:OK
  torvalds#316/4   verifier_bswap/BSWAP, 32 @unpriv:OK
  torvalds#316/5   verifier_bswap/BSWAP, 64:OK
  torvalds#316/6   verifier_bswap/BSWAP, 64 @unpriv:OK
  torvalds#316     verifier_bswap:OK
  torvalds#330/1   verifier_gotol/gotol, small_imm:OK
  torvalds#330/2   verifier_gotol/gotol, small_imm @unpriv:OK
  torvalds#330     verifier_gotol:OK
  torvalds#338/1   verifier_ldsx/LDSX, S8:OK
  torvalds#338/2   verifier_ldsx/LDSX, S8 @unpriv:OK
  torvalds#338/3   verifier_ldsx/LDSX, S16:OK
  torvalds#338/4   verifier_ldsx/LDSX, S16 @unpriv:OK
  torvalds#338/5   verifier_ldsx/LDSX, S32:OK
  torvalds#338/6   verifier_ldsx/LDSX, S32 @unpriv:OK
  torvalds#338/7   verifier_ldsx/LDSX, S8 range checking, privileged:OK
  torvalds#338/8   verifier_ldsx/LDSX, S16 range checking:OK
  torvalds#338/9   verifier_ldsx/LDSX, S16 range checking @unpriv:OK
  torvalds#338/10  verifier_ldsx/LDSX, S32 range checking:OK
  torvalds#338/11  verifier_ldsx/LDSX, S32 range checking @unpriv:OK
  torvalds#338     verifier_ldsx:OK
  torvalds#349/1   verifier_movsx/MOV32SX, S8:OK
  torvalds#349/2   verifier_movsx/MOV32SX, S8 @unpriv:OK
  torvalds#349/3   verifier_movsx/MOV32SX, S16:OK
  torvalds#349/4   verifier_movsx/MOV32SX, S16 @unpriv:OK
  torvalds#349/5   verifier_movsx/MOV64SX, S8:OK
  torvalds#349/6   verifier_movsx/MOV64SX, S8 @unpriv:OK
  torvalds#349/7   verifier_movsx/MOV64SX, S16:OK
  torvalds#349/8   verifier_movsx/MOV64SX, S16 @unpriv:OK
  torvalds#349/9   verifier_movsx/MOV64SX, S32:OK
  torvalds#349/10  verifier_movsx/MOV64SX, S32 @unpriv:OK
  torvalds#349/11  verifier_movsx/MOV32SX, S8, range_check:OK
  torvalds#349/12  verifier_movsx/MOV32SX, S8, range_check @unpriv:OK
  torvalds#349/13  verifier_movsx/MOV32SX, S16, range_check:OK
  torvalds#349/14  verifier_movsx/MOV32SX, S16, range_check @unpriv:OK
  torvalds#349/15  verifier_movsx/MOV32SX, S16, range_check 2:OK
  torvalds#349/16  verifier_movsx/MOV32SX, S16, range_check 2 @unpriv:OK
  torvalds#349/17  verifier_movsx/MOV64SX, S8, range_check:OK
  torvalds#349/18  verifier_movsx/MOV64SX, S8, range_check @unpriv:OK
  torvalds#349/19  verifier_movsx/MOV64SX, S16, range_check:OK
  torvalds#349/20  verifier_movsx/MOV64SX, S16, range_check @unpriv:OK
  torvalds#349/21  verifier_movsx/MOV64SX, S32, range_check:OK
  torvalds#349/22  verifier_movsx/MOV64SX, S32, range_check @unpriv:OK
  torvalds#349/23  verifier_movsx/MOV64SX, S16, R10 Sign Extension:OK
  torvalds#349/24  verifier_movsx/MOV64SX, S16, R10 Sign Extension @unpriv:OK
  torvalds#349     verifier_movsx:OK
  torvalds#361/1   verifier_sdiv/SDIV32, non-zero imm divisor, check 1:OK
  torvalds#361/2   verifier_sdiv/SDIV32, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/3   verifier_sdiv/SDIV32, non-zero imm divisor, check 2:OK
  torvalds#361/4   verifier_sdiv/SDIV32, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/5   verifier_sdiv/SDIV32, non-zero imm divisor, check 3:OK
  torvalds#361/6   verifier_sdiv/SDIV32, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/7   verifier_sdiv/SDIV32, non-zero imm divisor, check 4:OK
  torvalds#361/8   verifier_sdiv/SDIV32, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/9   verifier_sdiv/SDIV32, non-zero imm divisor, check 5:OK
  torvalds#361/10  verifier_sdiv/SDIV32, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/11  verifier_sdiv/SDIV32, non-zero imm divisor, check 6:OK
  torvalds#361/12  verifier_sdiv/SDIV32, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/13  verifier_sdiv/SDIV32, non-zero imm divisor, check 7:OK
  torvalds#361/14  verifier_sdiv/SDIV32, non-zero imm divisor, check 7 @unpriv:OK
  torvalds#361/15  verifier_sdiv/SDIV32, non-zero imm divisor, check 8:OK
  torvalds#361/16  verifier_sdiv/SDIV32, non-zero imm divisor, check 8 @unpriv:OK
  torvalds#361/17  verifier_sdiv/SDIV32, non-zero reg divisor, check 1:OK
  torvalds#361/18  verifier_sdiv/SDIV32, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/19  verifier_sdiv/SDIV32, non-zero reg divisor, check 2:OK
  torvalds#361/20  verifier_sdiv/SDIV32, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/21  verifier_sdiv/SDIV32, non-zero reg divisor, check 3:OK
  torvalds#361/22  verifier_sdiv/SDIV32, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/23  verifier_sdiv/SDIV32, non-zero reg divisor, check 4:OK
  torvalds#361/24  verifier_sdiv/SDIV32, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/25  verifier_sdiv/SDIV32, non-zero reg divisor, check 5:OK
  torvalds#361/26  verifier_sdiv/SDIV32, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/27  verifier_sdiv/SDIV32, non-zero reg divisor, check 6:OK
  torvalds#361/28  verifier_sdiv/SDIV32, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/29  verifier_sdiv/SDIV32, non-zero reg divisor, check 7:OK
  torvalds#361/30  verifier_sdiv/SDIV32, non-zero reg divisor, check 7 @unpriv:OK
  torvalds#361/31  verifier_sdiv/SDIV32, non-zero reg divisor, check 8:OK
  torvalds#361/32  verifier_sdiv/SDIV32, non-zero reg divisor, check 8 @unpriv:OK
  torvalds#361/33  verifier_sdiv/SDIV64, non-zero imm divisor, check 1:OK
  torvalds#361/34  verifier_sdiv/SDIV64, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/35  verifier_sdiv/SDIV64, non-zero imm divisor, check 2:OK
  torvalds#361/36  verifier_sdiv/SDIV64, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/37  verifier_sdiv/SDIV64, non-zero imm divisor, check 3:OK
  torvalds#361/38  verifier_sdiv/SDIV64, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/39  verifier_sdiv/SDIV64, non-zero imm divisor, check 4:OK
  torvalds#361/40  verifier_sdiv/SDIV64, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/41  verifier_sdiv/SDIV64, non-zero imm divisor, check 5:OK
  torvalds#361/42  verifier_sdiv/SDIV64, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/43  verifier_sdiv/SDIV64, non-zero imm divisor, check 6:OK
  torvalds#361/44  verifier_sdiv/SDIV64, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/45  verifier_sdiv/SDIV64, non-zero reg divisor, check 1:OK
  torvalds#361/46  verifier_sdiv/SDIV64, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/47  verifier_sdiv/SDIV64, non-zero reg divisor, check 2:OK
  torvalds#361/48  verifier_sdiv/SDIV64, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/49  verifier_sdiv/SDIV64, non-zero reg divisor, check 3:OK
  torvalds#361/50  verifier_sdiv/SDIV64, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/51  verifier_sdiv/SDIV64, non-zero reg divisor, check 4:OK
  torvalds#361/52  verifier_sdiv/SDIV64, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/53  verifier_sdiv/SDIV64, non-zero reg divisor, check 5:OK
  torvalds#361/54  verifier_sdiv/SDIV64, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/55  verifier_sdiv/SDIV64, non-zero reg divisor, check 6:OK
  torvalds#361/56  verifier_sdiv/SDIV64, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/57  verifier_sdiv/SMOD32, non-zero imm divisor, check 1:OK
  torvalds#361/58  verifier_sdiv/SMOD32, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/59  verifier_sdiv/SMOD32, non-zero imm divisor, check 2:OK
  torvalds#361/60  verifier_sdiv/SMOD32, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/61  verifier_sdiv/SMOD32, non-zero imm divisor, check 3:OK
  torvalds#361/62  verifier_sdiv/SMOD32, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/63  verifier_sdiv/SMOD32, non-zero imm divisor, check 4:OK
  torvalds#361/64  verifier_sdiv/SMOD32, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/65  verifier_sdiv/SMOD32, non-zero imm divisor, check 5:OK
  torvalds#361/66  verifier_sdiv/SMOD32, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/67  verifier_sdiv/SMOD32, non-zero imm divisor, check 6:OK
  torvalds#361/68  verifier_sdiv/SMOD32, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/69  verifier_sdiv/SMOD32, non-zero reg divisor, check 1:OK
  torvalds#361/70  verifier_sdiv/SMOD32, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/71  verifier_sdiv/SMOD32, non-zero reg divisor, check 2:OK
  torvalds#361/72  verifier_sdiv/SMOD32, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/73  verifier_sdiv/SMOD32, non-zero reg divisor, check 3:OK
  torvalds#361/74  verifier_sdiv/SMOD32, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/75  verifier_sdiv/SMOD32, non-zero reg divisor, check 4:OK
  torvalds#361/76  verifier_sdiv/SMOD32, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/77  verifier_sdiv/SMOD32, non-zero reg divisor, check 5:OK
  torvalds#361/78  verifier_sdiv/SMOD32, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/79  verifier_sdiv/SMOD32, non-zero reg divisor, check 6:OK
  torvalds#361/80  verifier_sdiv/SMOD32, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/81  verifier_sdiv/SMOD64, non-zero imm divisor, check 1:OK
  torvalds#361/82  verifier_sdiv/SMOD64, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/83  verifier_sdiv/SMOD64, non-zero imm divisor, check 2:OK
  torvalds#361/84  verifier_sdiv/SMOD64, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/85  verifier_sdiv/SMOD64, non-zero imm divisor, check 3:OK
  torvalds#361/86  verifier_sdiv/SMOD64, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/87  verifier_sdiv/SMOD64, non-zero imm divisor, check 4:OK
  torvalds#361/88  verifier_sdiv/SMOD64, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/89  verifier_sdiv/SMOD64, non-zero imm divisor, check 5:OK
  torvalds#361/90  verifier_sdiv/SMOD64, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/91  verifier_sdiv/SMOD64, non-zero imm divisor, check 6:OK
  torvalds#361/92  verifier_sdiv/SMOD64, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/93  verifier_sdiv/SMOD64, non-zero imm divisor, check 7:OK
  torvalds#361/94  verifier_sdiv/SMOD64, non-zero imm divisor, check 7 @unpriv:OK
  torvalds#361/95  verifier_sdiv/SMOD64, non-zero imm divisor, check 8:OK
  torvalds#361/96  verifier_sdiv/SMOD64, non-zero imm divisor, check 8 @unpriv:OK
  torvalds#361/97  verifier_sdiv/SMOD64, non-zero reg divisor, check 1:OK
  torvalds#361/98  verifier_sdiv/SMOD64, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/99  verifier_sdiv/SMOD64, non-zero reg divisor, check 2:OK
  torvalds#361/100 verifier_sdiv/SMOD64, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/101 verifier_sdiv/SMOD64, non-zero reg divisor, check 3:OK
  torvalds#361/102 verifier_sdiv/SMOD64, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/103 verifier_sdiv/SMOD64, non-zero reg divisor, check 4:OK
  torvalds#361/104 verifier_sdiv/SMOD64, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/105 verifier_sdiv/SMOD64, non-zero reg divisor, check 5:OK
  torvalds#361/106 verifier_sdiv/SMOD64, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/107 verifier_sdiv/SMOD64, non-zero reg divisor, check 6:OK
  torvalds#361/108 verifier_sdiv/SMOD64, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/109 verifier_sdiv/SMOD64, non-zero reg divisor, check 7:OK
  torvalds#361/110 verifier_sdiv/SMOD64, non-zero reg divisor, check 7 @unpriv:OK
  torvalds#361/111 verifier_sdiv/SMOD64, non-zero reg divisor, check 8:OK
  torvalds#361/112 verifier_sdiv/SMOD64, non-zero reg divisor, check 8 @unpriv:OK
  torvalds#361/113 verifier_sdiv/SDIV32, zero divisor:OK
  torvalds#361/114 verifier_sdiv/SDIV32, zero divisor @unpriv:OK
  torvalds#361/115 verifier_sdiv/SDIV64, zero divisor:OK
  torvalds#361/116 verifier_sdiv/SDIV64, zero divisor @unpriv:OK
  torvalds#361/117 verifier_sdiv/SMOD32, zero divisor:OK
  torvalds#361/118 verifier_sdiv/SMOD32, zero divisor @unpriv:OK
  torvalds#361/119 verifier_sdiv/SMOD64, zero divisor:OK
  torvalds#361/120 verifier_sdiv/SMOD64, zero divisor @unpriv:OK
  torvalds#361     verifier_sdiv:OK
  Summary: 5/163 PASSED, 0 SKIPPED, 0 FAILED

  # ./test_progs -t ldsx_insn
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__open 0 nsec
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__load 0 nsec
  libbpf: prog 'test_ptr_struct_arg': failed to attach: ERROR: strerror_r(-524)=22
  libbpf: prog 'test_ptr_struct_arg': failed to auto-attach: -524
  test_map_val_and_probed_memory:FAIL:test_ldsx_insn__attach unexpected error: -524 (errno 524)
  torvalds#116/1   ldsx_insn/map_val and probed_memory:FAIL
  torvalds#116/2   ldsx_insn/ctx_member_sign_ext:OK
  torvalds#116/3   ldsx_insn/ctx_member_narrow_sign_ext:OK
  torvalds#116     ldsx_insn:FAIL

  All error logs:
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__open 0 nsec
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__load 0 nsec
  libbpf: prog 'test_ptr_struct_arg': failed to attach: ERROR: strerror_r(-524)=22
  libbpf: prog 'test_ptr_struct_arg': failed to auto-attach: -524
  test_map_val_and_probed_memory:FAIL:test_ldsx_insn__attach unexpected error: -524 (errno 524)
  torvalds#116/1   ldsx_insn/map_val and probed_memory:FAIL
  torvalds#116     ldsx_insn:FAIL
  Summary: 0/2 PASSED, 0 SKIPPED, 1 FAILED

Signed-off-by: Hengqi Chen <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
RevySR pushed a commit to RevySR/linux that referenced this pull request Nov 23, 2023
@chenhengqi @RevySR
selftests/bpf: Enable cpu v4 tests for LoongArch
7427b3f 
Enable the cpu v4 tests for LoongArch. Currently, we don't have BPF
trampoline in LoongArch JIT, so the fentry test `test_ptr_struct_arg`
still failed, will followup.

Test result attached below:

  # ./test_progs -t verifier_sdiv,verifier_movsx,verifier_ldsx,verifier_gotol,verifier_bswap
  torvalds#316/1   verifier_bswap/BSWAP, 16:OK
  torvalds#316/2   verifier_bswap/BSWAP, 16 @unpriv:OK
  torvalds#316/3   verifier_bswap/BSWAP, 32:OK
  torvalds#316/4   verifier_bswap/BSWAP, 32 @unpriv:OK
  torvalds#316/5   verifier_bswap/BSWAP, 64:OK
  torvalds#316/6   verifier_bswap/BSWAP, 64 @unpriv:OK
  torvalds#316     verifier_bswap:OK
  torvalds#330/1   verifier_gotol/gotol, small_imm:OK
  torvalds#330/2   verifier_gotol/gotol, small_imm @unpriv:OK
  torvalds#330     verifier_gotol:OK
  torvalds#338/1   verifier_ldsx/LDSX, S8:OK
  torvalds#338/2   verifier_ldsx/LDSX, S8 @unpriv:OK
  torvalds#338/3   verifier_ldsx/LDSX, S16:OK
  torvalds#338/4   verifier_ldsx/LDSX, S16 @unpriv:OK
  torvalds#338/5   verifier_ldsx/LDSX, S32:OK
  torvalds#338/6   verifier_ldsx/LDSX, S32 @unpriv:OK
  torvalds#338/7   verifier_ldsx/LDSX, S8 range checking, privileged:OK
  torvalds#338/8   verifier_ldsx/LDSX, S16 range checking:OK
  torvalds#338/9   verifier_ldsx/LDSX, S16 range checking @unpriv:OK
  torvalds#338/10  verifier_ldsx/LDSX, S32 range checking:OK
  torvalds#338/11  verifier_ldsx/LDSX, S32 range checking @unpriv:OK
  torvalds#338     verifier_ldsx:OK
  torvalds#349/1   verifier_movsx/MOV32SX, S8:OK
  torvalds#349/2   verifier_movsx/MOV32SX, S8 @unpriv:OK
  torvalds#349/3   verifier_movsx/MOV32SX, S16:OK
  torvalds#349/4   verifier_movsx/MOV32SX, S16 @unpriv:OK
  torvalds#349/5   verifier_movsx/MOV64SX, S8:OK
  torvalds#349/6   verifier_movsx/MOV64SX, S8 @unpriv:OK
  torvalds#349/7   verifier_movsx/MOV64SX, S16:OK
  torvalds#349/8   verifier_movsx/MOV64SX, S16 @unpriv:OK
  torvalds#349/9   verifier_movsx/MOV64SX, S32:OK
  torvalds#349/10  verifier_movsx/MOV64SX, S32 @unpriv:OK
  torvalds#349/11  verifier_movsx/MOV32SX, S8, range_check:OK
  torvalds#349/12  verifier_movsx/MOV32SX, S8, range_check @unpriv:OK
  torvalds#349/13  verifier_movsx/MOV32SX, S16, range_check:OK
  torvalds#349/14  verifier_movsx/MOV32SX, S16, range_check @unpriv:OK
  torvalds#349/15  verifier_movsx/MOV32SX, S16, range_check 2:OK
  torvalds#349/16  verifier_movsx/MOV32SX, S16, range_check 2 @unpriv:OK
  torvalds#349/17  verifier_movsx/MOV64SX, S8, range_check:OK
  torvalds#349/18  verifier_movsx/MOV64SX, S8, range_check @unpriv:OK
  torvalds#349/19  verifier_movsx/MOV64SX, S16, range_check:OK
  torvalds#349/20  verifier_movsx/MOV64SX, S16, range_check @unpriv:OK
  torvalds#349/21  verifier_movsx/MOV64SX, S32, range_check:OK
  torvalds#349/22  verifier_movsx/MOV64SX, S32, range_check @unpriv:OK
  torvalds#349/23  verifier_movsx/MOV64SX, S16, R10 Sign Extension:OK
  torvalds#349/24  verifier_movsx/MOV64SX, S16, R10 Sign Extension @unpriv:OK
  torvalds#349     verifier_movsx:OK
  torvalds#361/1   verifier_sdiv/SDIV32, non-zero imm divisor, check 1:OK
  torvalds#361/2   verifier_sdiv/SDIV32, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/3   verifier_sdiv/SDIV32, non-zero imm divisor, check 2:OK
  torvalds#361/4   verifier_sdiv/SDIV32, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/5   verifier_sdiv/SDIV32, non-zero imm divisor, check 3:OK
  torvalds#361/6   verifier_sdiv/SDIV32, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/7   verifier_sdiv/SDIV32, non-zero imm divisor, check 4:OK
  torvalds#361/8   verifier_sdiv/SDIV32, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/9   verifier_sdiv/SDIV32, non-zero imm divisor, check 5:OK
  torvalds#361/10  verifier_sdiv/SDIV32, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/11  verifier_sdiv/SDIV32, non-zero imm divisor, check 6:OK
  torvalds#361/12  verifier_sdiv/SDIV32, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/13  verifier_sdiv/SDIV32, non-zero imm divisor, check 7:OK
  torvalds#361/14  verifier_sdiv/SDIV32, non-zero imm divisor, check 7 @unpriv:OK
  torvalds#361/15  verifier_sdiv/SDIV32, non-zero imm divisor, check 8:OK
  torvalds#361/16  verifier_sdiv/SDIV32, non-zero imm divisor, check 8 @unpriv:OK
  torvalds#361/17  verifier_sdiv/SDIV32, non-zero reg divisor, check 1:OK
  torvalds#361/18  verifier_sdiv/SDIV32, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/19  verifier_sdiv/SDIV32, non-zero reg divisor, check 2:OK
  torvalds#361/20  verifier_sdiv/SDIV32, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/21  verifier_sdiv/SDIV32, non-zero reg divisor, check 3:OK
  torvalds#361/22  verifier_sdiv/SDIV32, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/23  verifier_sdiv/SDIV32, non-zero reg divisor, check 4:OK
  torvalds#361/24  verifier_sdiv/SDIV32, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/25  verifier_sdiv/SDIV32, non-zero reg divisor, check 5:OK
  torvalds#361/26  verifier_sdiv/SDIV32, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/27  verifier_sdiv/SDIV32, non-zero reg divisor, check 6:OK
  torvalds#361/28  verifier_sdiv/SDIV32, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/29  verifier_sdiv/SDIV32, non-zero reg divisor, check 7:OK
  torvalds#361/30  verifier_sdiv/SDIV32, non-zero reg divisor, check 7 @unpriv:OK
  torvalds#361/31  verifier_sdiv/SDIV32, non-zero reg divisor, check 8:OK
  torvalds#361/32  verifier_sdiv/SDIV32, non-zero reg divisor, check 8 @unpriv:OK
  torvalds#361/33  verifier_sdiv/SDIV64, non-zero imm divisor, check 1:OK
  torvalds#361/34  verifier_sdiv/SDIV64, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/35  verifier_sdiv/SDIV64, non-zero imm divisor, check 2:OK
  torvalds#361/36  verifier_sdiv/SDIV64, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/37  verifier_sdiv/SDIV64, non-zero imm divisor, check 3:OK
  torvalds#361/38  verifier_sdiv/SDIV64, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/39  verifier_sdiv/SDIV64, non-zero imm divisor, check 4:OK
  torvalds#361/40  verifier_sdiv/SDIV64, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/41  verifier_sdiv/SDIV64, non-zero imm divisor, check 5:OK
  torvalds#361/42  verifier_sdiv/SDIV64, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/43  verifier_sdiv/SDIV64, non-zero imm divisor, check 6:OK
  torvalds#361/44  verifier_sdiv/SDIV64, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/45  verifier_sdiv/SDIV64, non-zero reg divisor, check 1:OK
  torvalds#361/46  verifier_sdiv/SDIV64, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/47  verifier_sdiv/SDIV64, non-zero reg divisor, check 2:OK
  torvalds#361/48  verifier_sdiv/SDIV64, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/49  verifier_sdiv/SDIV64, non-zero reg divisor, check 3:OK
  torvalds#361/50  verifier_sdiv/SDIV64, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/51  verifier_sdiv/SDIV64, non-zero reg divisor, check 4:OK
  torvalds#361/52  verifier_sdiv/SDIV64, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/53  verifier_sdiv/SDIV64, non-zero reg divisor, check 5:OK
  torvalds#361/54  verifier_sdiv/SDIV64, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/55  verifier_sdiv/SDIV64, non-zero reg divisor, check 6:OK
  torvalds#361/56  verifier_sdiv/SDIV64, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/57  verifier_sdiv/SMOD32, non-zero imm divisor, check 1:OK
  torvalds#361/58  verifier_sdiv/SMOD32, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/59  verifier_sdiv/SMOD32, non-zero imm divisor, check 2:OK
  torvalds#361/60  verifier_sdiv/SMOD32, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/61  verifier_sdiv/SMOD32, non-zero imm divisor, check 3:OK
  torvalds#361/62  verifier_sdiv/SMOD32, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/63  verifier_sdiv/SMOD32, non-zero imm divisor, check 4:OK
  torvalds#361/64  verifier_sdiv/SMOD32, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/65  verifier_sdiv/SMOD32, non-zero imm divisor, check 5:OK
  torvalds#361/66  verifier_sdiv/SMOD32, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/67  verifier_sdiv/SMOD32, non-zero imm divisor, check 6:OK
  torvalds#361/68  verifier_sdiv/SMOD32, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/69  verifier_sdiv/SMOD32, non-zero reg divisor, check 1:OK
  torvalds#361/70  verifier_sdiv/SMOD32, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/71  verifier_sdiv/SMOD32, non-zero reg divisor, check 2:OK
  torvalds#361/72  verifier_sdiv/SMOD32, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/73  verifier_sdiv/SMOD32, non-zero reg divisor, check 3:OK
  torvalds#361/74  verifier_sdiv/SMOD32, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/75  verifier_sdiv/SMOD32, non-zero reg divisor, check 4:OK
  torvalds#361/76  verifier_sdiv/SMOD32, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/77  verifier_sdiv/SMOD32, non-zero reg divisor, check 5:OK
  torvalds#361/78  verifier_sdiv/SMOD32, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/79  verifier_sdiv/SMOD32, non-zero reg divisor, check 6:OK
  torvalds#361/80  verifier_sdiv/SMOD32, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/81  verifier_sdiv/SMOD64, non-zero imm divisor, check 1:OK
  torvalds#361/82  verifier_sdiv/SMOD64, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/83  verifier_sdiv/SMOD64, non-zero imm divisor, check 2:OK
  torvalds#361/84  verifier_sdiv/SMOD64, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/85  verifier_sdiv/SMOD64, non-zero imm divisor, check 3:OK
  torvalds#361/86  verifier_sdiv/SMOD64, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/87  verifier_sdiv/SMOD64, non-zero imm divisor, check 4:OK
  torvalds#361/88  verifier_sdiv/SMOD64, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/89  verifier_sdiv/SMOD64, non-zero imm divisor, check 5:OK
  torvalds#361/90  verifier_sdiv/SMOD64, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/91  verifier_sdiv/SMOD64, non-zero imm divisor, check 6:OK
  torvalds#361/92  verifier_sdiv/SMOD64, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/93  verifier_sdiv/SMOD64, non-zero imm divisor, check 7:OK
  torvalds#361/94  verifier_sdiv/SMOD64, non-zero imm divisor, check 7 @unpriv:OK
  torvalds#361/95  verifier_sdiv/SMOD64, non-zero imm divisor, check 8:OK
  torvalds#361/96  verifier_sdiv/SMOD64, non-zero imm divisor, check 8 @unpriv:OK
  torvalds#361/97  verifier_sdiv/SMOD64, non-zero reg divisor, check 1:OK
  torvalds#361/98  verifier_sdiv/SMOD64, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/99  verifier_sdiv/SMOD64, non-zero reg divisor, check 2:OK
  torvalds#361/100 verifier_sdiv/SMOD64, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/101 verifier_sdiv/SMOD64, non-zero reg divisor, check 3:OK
  torvalds#361/102 verifier_sdiv/SMOD64, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/103 verifier_sdiv/SMOD64, non-zero reg divisor, check 4:OK
  torvalds#361/104 verifier_sdiv/SMOD64, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/105 verifier_sdiv/SMOD64, non-zero reg divisor, check 5:OK
  torvalds#361/106 verifier_sdiv/SMOD64, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/107 verifier_sdiv/SMOD64, non-zero reg divisor, check 6:OK
  torvalds#361/108 verifier_sdiv/SMOD64, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/109 verifier_sdiv/SMOD64, non-zero reg divisor, check 7:OK
  torvalds#361/110 verifier_sdiv/SMOD64, non-zero reg divisor, check 7 @unpriv:OK
  torvalds#361/111 verifier_sdiv/SMOD64, non-zero reg divisor, check 8:OK
  torvalds#361/112 verifier_sdiv/SMOD64, non-zero reg divisor, check 8 @unpriv:OK
  torvalds#361/113 verifier_sdiv/SDIV32, zero divisor:OK
  torvalds#361/114 verifier_sdiv/SDIV32, zero divisor @unpriv:OK
  torvalds#361/115 verifier_sdiv/SDIV64, zero divisor:OK
  torvalds#361/116 verifier_sdiv/SDIV64, zero divisor @unpriv:OK
  torvalds#361/117 verifier_sdiv/SMOD32, zero divisor:OK
  torvalds#361/118 verifier_sdiv/SMOD32, zero divisor @unpriv:OK
  torvalds#361/119 verifier_sdiv/SMOD64, zero divisor:OK
  torvalds#361/120 verifier_sdiv/SMOD64, zero divisor @unpriv:OK
  torvalds#361     verifier_sdiv:OK
  Summary: 5/163 PASSED, 0 SKIPPED, 0 FAILED

  # ./test_progs -t ldsx_insn
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__open 0 nsec
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__load 0 nsec
  libbpf: prog 'test_ptr_struct_arg': failed to attach: ERROR: strerror_r(-524)=22
  libbpf: prog 'test_ptr_struct_arg': failed to auto-attach: -524
  test_map_val_and_probed_memory:FAIL:test_ldsx_insn__attach unexpected error: -524 (errno 524)
  torvalds#116/1   ldsx_insn/map_val and probed_memory:FAIL
  torvalds#116/2   ldsx_insn/ctx_member_sign_ext:OK
  torvalds#116/3   ldsx_insn/ctx_member_narrow_sign_ext:OK
  torvalds#116     ldsx_insn:FAIL

  All error logs:
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__open 0 nsec
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__load 0 nsec
  libbpf: prog 'test_ptr_struct_arg': failed to attach: ERROR: strerror_r(-524)=22
  libbpf: prog 'test_ptr_struct_arg': failed to auto-attach: -524
  test_map_val_and_probed_memory:FAIL:test_ldsx_insn__attach unexpected error: -524 (errno 524)
  torvalds#116/1   ldsx_insn/map_val and probed_memory:FAIL
  torvalds#116     ldsx_insn:FAIL
  Summary: 0/2 PASSED, 0 SKIPPED, 1 FAILED

Signed-off-by: Hengqi Chen <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
borkmann added a commit to cilium/linux that referenced this pull request May 23, 2024
@borkmann
selftests/bpf: Add netkit test for pkt_type
c6ed9ea 
  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.140780] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.141127] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.284601] tsc: Refined TSC clocksource calibration: 3408.006 MHz
  [    1.286672] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fd9b189d, max_idle_ns: 440795225691 ns
  [    1.290384] clocksource: Switched to clocksource tsc
  torvalds#345     tc_netkit_basic:OK
  torvalds#346     tc_netkit_device:OK
  torvalds#347     tc_netkit_multi_links:OK
  torvalds#348     tc_netkit_multi_opts:OK
  torvalds#349     tc_netkit_neigh_links:OK
  torvalds#350     tc_netkit_pkt_type:OK
  Summary: 6/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
borkmann added a commit to cilium/linux that referenced this pull request May 24, 2024
@borkmann
selftests/bpf: Add netkit test for pkt_type
ece98d4 
Add a test case to assert that the skb->pkt_type which was set from the BPF
program is retained from the netkit xmit side to the peer's device at tcx
ingress location.

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.140780] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.141127] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.284601] tsc: Refined TSC clocksource calibration: 3408.006 MHz
  [    1.286672] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fd9b189d, max_idle_ns: 440795225691 ns
  [    1.290384] clocksource: Switched to clocksource tsc
  torvalds#345     tc_netkit_basic:OK
  torvalds#346     tc_netkit_device:OK
  torvalds#347     tc_netkit_multi_links:OK
  torvalds#348     tc_netkit_multi_opts:OK
  torvalds#349     tc_netkit_neigh_links:OK
  torvalds#350     tc_netkit_pkt_type:OK
  Summary: 6/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
borkmann added a commit to cilium/linux that referenced this pull request May 24, 2024
@borkmann
selftests/bpf: Add netkit test for pkt_type
3cedc10 
Add a test case to assert that the skb->pkt_type which was set from the BPF
program is retained from the netkit xmit side to the peer's device at tcx
ingress location.

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.140780] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.141127] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.284601] tsc: Refined TSC clocksource calibration: 3408.006 MHz
  [    1.286672] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fd9b189d, max_idle_ns: 440795225691 ns
  [    1.290384] clocksource: Switched to clocksource tsc
  torvalds#345     tc_netkit_basic:OK
  torvalds#346     tc_netkit_device:OK
  torvalds#347     tc_netkit_multi_links:OK
  torvalds#348     tc_netkit_multi_opts:OK
  torvalds#349     tc_netkit_neigh_links:OK
  torvalds#350     tc_netkit_pkt_type:OK
  Summary: 6/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this pull request May 24, 2024
@borkmann @intel-lab-lkp
selftests/bpf: Add netkit test for pkt_type
3b320cb 
Add a test case to assert that the skb->pkt_type which was set from the BPF
program is retained from the netkit xmit side to the peer's device at tcx
ingress location.

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.140780] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.141127] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.284601] tsc: Refined TSC clocksource calibration: 3408.006 MHz
  [    1.286672] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fd9b189d, max_idle_ns: 440795225691 ns
  [    1.290384] clocksource: Switched to clocksource tsc
  torvalds#345     tc_netkit_basic:OK
  torvalds#346     tc_netkit_device:OK
  torvalds#347     tc_netkit_multi_links:OK
  torvalds#348     tc_netkit_multi_opts:OK
  torvalds#349     tc_netkit_neigh_links:OK
  torvalds#350     tc_netkit_pkt_type:OK
  Summary: 6/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this pull request May 26, 2024
@borkmann
selftests/bpf: Add netkit test for pkt_type
95348e4 
Add a test case to assert that the skb->pkt_type which was set from the BPF
program is retained from the netkit xmit side to the peer's device at tcx
ingress location.

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.140780] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.141127] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.284601] tsc: Refined TSC clocksource calibration: 3408.006 MHz
  [    1.286672] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fd9b189d, max_idle_ns: 440795225691 ns
  [    1.290384] clocksource: Switched to clocksource tsc
  torvalds#345     tc_netkit_basic:OK
  torvalds#346     tc_netkit_device:OK
  torvalds#347     tc_netkit_multi_links:OK
  torvalds#348     tc_netkit_multi_opts:OK
  torvalds#349     tc_netkit_neigh_links:OK
  torvalds#350     tc_netkit_pkt_type:OK
  Summary: 6/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexei Starovoitov <[email protected]>
adeepn pushed a commit to jethome-iot/linux-kernel that referenced this pull request Jun 10, 2024
@borkmann @adeepn
selftests/bpf: Add netkit test for pkt_type
c0600c5 
Add a test case to assert that the skb->pkt_type which was set from the BPF
program is retained from the netkit xmit side to the peer's device at tcx
ingress location.

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.140780] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.141127] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.284601] tsc: Refined TSC clocksource calibration: 3408.006 MHz
  [    1.286672] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fd9b189d, max_idle_ns: 440795225691 ns
  [    1.290384] clocksource: Switched to clocksource tsc
  torvalds#345     tc_netkit_basic:OK
  torvalds#346     tc_netkit_device:OK
  torvalds#347     tc_netkit_multi_links:OK
  torvalds#348     tc_netkit_multi_opts:OK
  torvalds#349     tc_netkit_neigh_links:OK
  torvalds#350     tc_netkit_pkt_type:OK
  Summary: 6/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexei Starovoitov <[email protected]>
shipujin pushed a commit to shipujin/linux that referenced this pull request Jul 24, 2024
@chenhengqi @chenhuacai
selftests/bpf: Enable cpu v4 tests for LoongArch
f5f7e47 
Enable the cpu v4 tests for LoongArch. Currently, we don't have BPF
trampoline in LoongArch JIT, so the fentry test `test_ptr_struct_arg`
still failed, will followup.

Test result attached below:

  # ./test_progs -t verifier_sdiv,verifier_movsx,verifier_ldsx,verifier_gotol,verifier_bswap
  torvalds#316/1   verifier_bswap/BSWAP, 16:OK
  torvalds#316/2   verifier_bswap/BSWAP, 16 @unpriv:OK
  torvalds#316/3   verifier_bswap/BSWAP, 32:OK
  torvalds#316/4   verifier_bswap/BSWAP, 32 @unpriv:OK
  torvalds#316/5   verifier_bswap/BSWAP, 64:OK
  torvalds#316/6   verifier_bswap/BSWAP, 64 @unpriv:OK
  torvalds#316     verifier_bswap:OK
  torvalds#330/1   verifier_gotol/gotol, small_imm:OK
  torvalds#330/2   verifier_gotol/gotol, small_imm @unpriv:OK
  torvalds#330     verifier_gotol:OK
  torvalds#338/1   verifier_ldsx/LDSX, S8:OK
  torvalds#338/2   verifier_ldsx/LDSX, S8 @unpriv:OK
  torvalds#338/3   verifier_ldsx/LDSX, S16:OK
  torvalds#338/4   verifier_ldsx/LDSX, S16 @unpriv:OK
  torvalds#338/5   verifier_ldsx/LDSX, S32:OK
  torvalds#338/6   verifier_ldsx/LDSX, S32 @unpriv:OK
  torvalds#338/7   verifier_ldsx/LDSX, S8 range checking, privileged:OK
  torvalds#338/8   verifier_ldsx/LDSX, S16 range checking:OK
  torvalds#338/9   verifier_ldsx/LDSX, S16 range checking @unpriv:OK
  torvalds#338/10  verifier_ldsx/LDSX, S32 range checking:OK
  torvalds#338/11  verifier_ldsx/LDSX, S32 range checking @unpriv:OK
  torvalds#338     verifier_ldsx:OK
  torvalds#349/1   verifier_movsx/MOV32SX, S8:OK
  torvalds#349/2   verifier_movsx/MOV32SX, S8 @unpriv:OK
  torvalds#349/3   verifier_movsx/MOV32SX, S16:OK
  torvalds#349/4   verifier_movsx/MOV32SX, S16 @unpriv:OK
  torvalds#349/5   verifier_movsx/MOV64SX, S8:OK
  torvalds#349/6   verifier_movsx/MOV64SX, S8 @unpriv:OK
  torvalds#349/7   verifier_movsx/MOV64SX, S16:OK
  torvalds#349/8   verifier_movsx/MOV64SX, S16 @unpriv:OK
  torvalds#349/9   verifier_movsx/MOV64SX, S32:OK
  torvalds#349/10  verifier_movsx/MOV64SX, S32 @unpriv:OK
  torvalds#349/11  verifier_movsx/MOV32SX, S8, range_check:OK
  torvalds#349/12  verifier_movsx/MOV32SX, S8, range_check @unpriv:OK
  torvalds#349/13  verifier_movsx/MOV32SX, S16, range_check:OK
  torvalds#349/14  verifier_movsx/MOV32SX, S16, range_check @unpriv:OK
  torvalds#349/15  verifier_movsx/MOV32SX, S16, range_check 2:OK
  torvalds#349/16  verifier_movsx/MOV32SX, S16, range_check 2 @unpriv:OK
  torvalds#349/17  verifier_movsx/MOV64SX, S8, range_check:OK
  torvalds#349/18  verifier_movsx/MOV64SX, S8, range_check @unpriv:OK
  torvalds#349/19  verifier_movsx/MOV64SX, S16, range_check:OK
  torvalds#349/20  verifier_movsx/MOV64SX, S16, range_check @unpriv:OK
  torvalds#349/21  verifier_movsx/MOV64SX, S32, range_check:OK
  torvalds#349/22  verifier_movsx/MOV64SX, S32, range_check @unpriv:OK
  torvalds#349/23  verifier_movsx/MOV64SX, S16, R10 Sign Extension:OK
  torvalds#349/24  verifier_movsx/MOV64SX, S16, R10 Sign Extension @unpriv:OK
  torvalds#349     verifier_movsx:OK
  torvalds#361/1   verifier_sdiv/SDIV32, non-zero imm divisor, check 1:OK
  torvalds#361/2   verifier_sdiv/SDIV32, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/3   verifier_sdiv/SDIV32, non-zero imm divisor, check 2:OK
  torvalds#361/4   verifier_sdiv/SDIV32, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/5   verifier_sdiv/SDIV32, non-zero imm divisor, check 3:OK
  torvalds#361/6   verifier_sdiv/SDIV32, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/7   verifier_sdiv/SDIV32, non-zero imm divisor, check 4:OK
  torvalds#361/8   verifier_sdiv/SDIV32, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/9   verifier_sdiv/SDIV32, non-zero imm divisor, check 5:OK
  torvalds#361/10  verifier_sdiv/SDIV32, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/11  verifier_sdiv/SDIV32, non-zero imm divisor, check 6:OK
  torvalds#361/12  verifier_sdiv/SDIV32, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/13  verifier_sdiv/SDIV32, non-zero imm divisor, check 7:OK
  torvalds#361/14  verifier_sdiv/SDIV32, non-zero imm divisor, check 7 @unpriv:OK
  torvalds#361/15  verifier_sdiv/SDIV32, non-zero imm divisor, check 8:OK
  torvalds#361/16  verifier_sdiv/SDIV32, non-zero imm divisor, check 8 @unpriv:OK
  torvalds#361/17  verifier_sdiv/SDIV32, non-zero reg divisor, check 1:OK
  torvalds#361/18  verifier_sdiv/SDIV32, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/19  verifier_sdiv/SDIV32, non-zero reg divisor, check 2:OK
  torvalds#361/20  verifier_sdiv/SDIV32, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/21  verifier_sdiv/SDIV32, non-zero reg divisor, check 3:OK
  torvalds#361/22  verifier_sdiv/SDIV32, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/23  verifier_sdiv/SDIV32, non-zero reg divisor, check 4:OK
  torvalds#361/24  verifier_sdiv/SDIV32, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/25  verifier_sdiv/SDIV32, non-zero reg divisor, check 5:OK
  torvalds#361/26  verifier_sdiv/SDIV32, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/27  verifier_sdiv/SDIV32, non-zero reg divisor, check 6:OK
  torvalds#361/28  verifier_sdiv/SDIV32, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/29  verifier_sdiv/SDIV32, non-zero reg divisor, check 7:OK
  torvalds#361/30  verifier_sdiv/SDIV32, non-zero reg divisor, check 7 @unpriv:OK
  torvalds#361/31  verifier_sdiv/SDIV32, non-zero reg divisor, check 8:OK
  torvalds#361/32  verifier_sdiv/SDIV32, non-zero reg divisor, check 8 @unpriv:OK
  torvalds#361/33  verifier_sdiv/SDIV64, non-zero imm divisor, check 1:OK
  torvalds#361/34  verifier_sdiv/SDIV64, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/35  verifier_sdiv/SDIV64, non-zero imm divisor, check 2:OK
  torvalds#361/36  verifier_sdiv/SDIV64, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/37  verifier_sdiv/SDIV64, non-zero imm divisor, check 3:OK
  torvalds#361/38  verifier_sdiv/SDIV64, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/39  verifier_sdiv/SDIV64, non-zero imm divisor, check 4:OK
  torvalds#361/40  verifier_sdiv/SDIV64, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/41  verifier_sdiv/SDIV64, non-zero imm divisor, check 5:OK
  torvalds#361/42  verifier_sdiv/SDIV64, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/43  verifier_sdiv/SDIV64, non-zero imm divisor, check 6:OK
  torvalds#361/44  verifier_sdiv/SDIV64, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/45  verifier_sdiv/SDIV64, non-zero reg divisor, check 1:OK
  torvalds#361/46  verifier_sdiv/SDIV64, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/47  verifier_sdiv/SDIV64, non-zero reg divisor, check 2:OK
  torvalds#361/48  verifier_sdiv/SDIV64, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/49  verifier_sdiv/SDIV64, non-zero reg divisor, check 3:OK
  torvalds#361/50  verifier_sdiv/SDIV64, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/51  verifier_sdiv/SDIV64, non-zero reg divisor, check 4:OK
  torvalds#361/52  verifier_sdiv/SDIV64, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/53  verifier_sdiv/SDIV64, non-zero reg divisor, check 5:OK
  torvalds#361/54  verifier_sdiv/SDIV64, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/55  verifier_sdiv/SDIV64, non-zero reg divisor, check 6:OK
  torvalds#361/56  verifier_sdiv/SDIV64, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/57  verifier_sdiv/SMOD32, non-zero imm divisor, check 1:OK
  torvalds#361/58  verifier_sdiv/SMOD32, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/59  verifier_sdiv/SMOD32, non-zero imm divisor, check 2:OK
  torvalds#361/60  verifier_sdiv/SMOD32, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/61  verifier_sdiv/SMOD32, non-zero imm divisor, check 3:OK
  torvalds#361/62  verifier_sdiv/SMOD32, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/63  verifier_sdiv/SMOD32, non-zero imm divisor, check 4:OK
  torvalds#361/64  verifier_sdiv/SMOD32, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/65  verifier_sdiv/SMOD32, non-zero imm divisor, check 5:OK
  torvalds#361/66  verifier_sdiv/SMOD32, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/67  verifier_sdiv/SMOD32, non-zero imm divisor, check 6:OK
  torvalds#361/68  verifier_sdiv/SMOD32, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/69  verifier_sdiv/SMOD32, non-zero reg divisor, check 1:OK
  torvalds#361/70  verifier_sdiv/SMOD32, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/71  verifier_sdiv/SMOD32, non-zero reg divisor, check 2:OK
  torvalds#361/72  verifier_sdiv/SMOD32, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/73  verifier_sdiv/SMOD32, non-zero reg divisor, check 3:OK
  torvalds#361/74  verifier_sdiv/SMOD32, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/75  verifier_sdiv/SMOD32, non-zero reg divisor, check 4:OK
  torvalds#361/76  verifier_sdiv/SMOD32, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/77  verifier_sdiv/SMOD32, non-zero reg divisor, check 5:OK
  torvalds#361/78  verifier_sdiv/SMOD32, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/79  verifier_sdiv/SMOD32, non-zero reg divisor, check 6:OK
  torvalds#361/80  verifier_sdiv/SMOD32, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/81  verifier_sdiv/SMOD64, non-zero imm divisor, check 1:OK
  torvalds#361/82  verifier_sdiv/SMOD64, non-zero imm divisor, check 1 @unpriv:OK
  torvalds#361/83  verifier_sdiv/SMOD64, non-zero imm divisor, check 2:OK
  torvalds#361/84  verifier_sdiv/SMOD64, non-zero imm divisor, check 2 @unpriv:OK
  torvalds#361/85  verifier_sdiv/SMOD64, non-zero imm divisor, check 3:OK
  torvalds#361/86  verifier_sdiv/SMOD64, non-zero imm divisor, check 3 @unpriv:OK
  torvalds#361/87  verifier_sdiv/SMOD64, non-zero imm divisor, check 4:OK
  torvalds#361/88  verifier_sdiv/SMOD64, non-zero imm divisor, check 4 @unpriv:OK
  torvalds#361/89  verifier_sdiv/SMOD64, non-zero imm divisor, check 5:OK
  torvalds#361/90  verifier_sdiv/SMOD64, non-zero imm divisor, check 5 @unpriv:OK
  torvalds#361/91  verifier_sdiv/SMOD64, non-zero imm divisor, check 6:OK
  torvalds#361/92  verifier_sdiv/SMOD64, non-zero imm divisor, check 6 @unpriv:OK
  torvalds#361/93  verifier_sdiv/SMOD64, non-zero imm divisor, check 7:OK
  torvalds#361/94  verifier_sdiv/SMOD64, non-zero imm divisor, check 7 @unpriv:OK
  torvalds#361/95  verifier_sdiv/SMOD64, non-zero imm divisor, check 8:OK
  torvalds#361/96  verifier_sdiv/SMOD64, non-zero imm divisor, check 8 @unpriv:OK
  torvalds#361/97  verifier_sdiv/SMOD64, non-zero reg divisor, check 1:OK
  torvalds#361/98  verifier_sdiv/SMOD64, non-zero reg divisor, check 1 @unpriv:OK
  torvalds#361/99  verifier_sdiv/SMOD64, non-zero reg divisor, check 2:OK
  torvalds#361/100 verifier_sdiv/SMOD64, non-zero reg divisor, check 2 @unpriv:OK
  torvalds#361/101 verifier_sdiv/SMOD64, non-zero reg divisor, check 3:OK
  torvalds#361/102 verifier_sdiv/SMOD64, non-zero reg divisor, check 3 @unpriv:OK
  torvalds#361/103 verifier_sdiv/SMOD64, non-zero reg divisor, check 4:OK
  torvalds#361/104 verifier_sdiv/SMOD64, non-zero reg divisor, check 4 @unpriv:OK
  torvalds#361/105 verifier_sdiv/SMOD64, non-zero reg divisor, check 5:OK
  torvalds#361/106 verifier_sdiv/SMOD64, non-zero reg divisor, check 5 @unpriv:OK
  torvalds#361/107 verifier_sdiv/SMOD64, non-zero reg divisor, check 6:OK
  torvalds#361/108 verifier_sdiv/SMOD64, non-zero reg divisor, check 6 @unpriv:OK
  torvalds#361/109 verifier_sdiv/SMOD64, non-zero reg divisor, check 7:OK
  torvalds#361/110 verifier_sdiv/SMOD64, non-zero reg divisor, check 7 @unpriv:OK
  torvalds#361/111 verifier_sdiv/SMOD64, non-zero reg divisor, check 8:OK
  torvalds#361/112 verifier_sdiv/SMOD64, non-zero reg divisor, check 8 @unpriv:OK
  torvalds#361/113 verifier_sdiv/SDIV32, zero divisor:OK
  torvalds#361/114 verifier_sdiv/SDIV32, zero divisor @unpriv:OK
  torvalds#361/115 verifier_sdiv/SDIV64, zero divisor:OK
  torvalds#361/116 verifier_sdiv/SDIV64, zero divisor @unpriv:OK
  torvalds#361/117 verifier_sdiv/SMOD32, zero divisor:OK
  torvalds#361/118 verifier_sdiv/SMOD32, zero divisor @unpriv:OK
  torvalds#361/119 verifier_sdiv/SMOD64, zero divisor:OK
  torvalds#361/120 verifier_sdiv/SMOD64, zero divisor @unpriv:OK
  torvalds#361     verifier_sdiv:OK
  Summary: 5/163 PASSED, 0 SKIPPED, 0 FAILED

  # ./test_progs -t ldsx_insn
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__open 0 nsec
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__load 0 nsec
  libbpf: prog 'test_ptr_struct_arg': failed to attach: ERROR: strerror_r(-524)=22
  libbpf: prog 'test_ptr_struct_arg': failed to auto-attach: -524
  test_map_val_and_probed_memory:FAIL:test_ldsx_insn__attach unexpected error: -524 (errno 524)
  torvalds#116/1   ldsx_insn/map_val and probed_memory:FAIL
  torvalds#116/2   ldsx_insn/ctx_member_sign_ext:OK
  torvalds#116/3   ldsx_insn/ctx_member_narrow_sign_ext:OK
  torvalds#116     ldsx_insn:FAIL

  All error logs:
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__open 0 nsec
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__load 0 nsec
  libbpf: prog 'test_ptr_struct_arg': failed to attach: ERROR: strerror_r(-524)=22
  libbpf: prog 'test_ptr_struct_arg': failed to auto-attach: -524
  test_map_val_and_probed_memory:FAIL:test_ldsx_insn__attach unexpected error: -524 (errno 524)
  torvalds#116/1   ldsx_insn/map_val and probed_memory:FAIL
  torvalds#116     ldsx_insn:FAIL
  Summary: 0/2 PASSED, 0 SKIPPED, 1 FAILED

Signed-off-by: Hengqi Chen <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
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@codepriya