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polkit uses a lot of cpu with hardened kernel #8

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polkit-github-migration-bot opened this issue Jan 2, 2017 · 2 comments
Open

polkit uses a lot of cpu with hardened kernel #8

polkit-github-migration-bot opened this issue Jan 2, 2017 · 2 comments
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5. daemon bugzilla

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@polkit-github-migration-bot
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In gitlab.freedesktop.org by bugzilla-migration on Jan 2, 2017, 19:09

Link to the original issue: https://gitlab.freedesktop.org/polkit/polkit/-/issues/7

Submitted by Oscar Andrea Merandi

Assigned to David Zeuthen @david

Link to original bug (#99249)

Description

I use gentoo (hardened profile) with hardened kernel.

polkit uses a lot of cpu with hardened kernel, with non-hardened kernel no problem.

useful information:
https://paste.pound-python.org/show/EYDRILi7A9LMBoaXX6gI/

screenshot:
http://imgur.com/sE8lVl2

perf report:
https://paste.pound-python.org/show/6HPsU7IEg2EasgpedU1F/
@polkit-github-migration-bot
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In gitlab.freedesktop.org by bugzilla-migration on Mar 3, 2017, 19:20

💬 [email protected] said:

I confirm. When I got 100% cpu I just do "killall -HUP polkitd" to restart it.
I have no idea how to force this bug...
Can say I went with version down in gentoo packages but it's happening again and again... so this is not only one relase bug.

@polkit-github-migration-bot
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In gitlab.freedesktop.org by bugzilla-migration on Mar 3, 2017, 21:26

💬 Oscar Andrea Merandi said:

(In reply to xdev52 from comment 1)

I confirm. When I got 100% cpu I just do "killall -HUP polkitd" to restart
it.
I have no idea how to force this bug...
Can say I went with version down in gentoo packages but it's happening again
and again... so this is not only one relase bug.

sincerely now with the kernel 4.9.11 hardened and does not happen, now do not know if it is a modification of the kernel or of my configuration, have a look at this my other bug reports
https://bugs.gentoo.org/show_bug.cgi?id=602468

mrc0mmand added a commit to mrc0mmand/polkit that referenced this issue Jun 10, 2024
@mrc0mmand
Replace duk_error() with duk_push_error_object() + duk_throw()
d291c81 
duk_error() never returns, so the error string gets leaked every time an error
is thrown. Let's avoid this by creating the error object first without throwing
it, freeing the original error string (we don't need it anymore since it gets
sprintf-ed into the error object), and then throwing the error object from top
of the current context stack.

 =================================================================
==1270==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 231 byte(s) in 2 object(s) allocated from:
    #0 0x7f3a489258b7 in malloc (/lib64/libasan.so.8+0xf68b7) (BuildId: 388cbb99455c2e2eaec79bd8db6d9a78eb39f80d)
    #1 0x7f3a47b27487 in __vasprintf_internal (/lib64/libc.so.6+0x8a487) (BuildId: 4a92fcedbba6d6d2629ce066a2970017faa9995e)
    #2 0x7f3a484b06a2 in g_vasprintf (/lib64/libglib-2.0.so.0+0xb16a2) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    #3 0x7f3a48480a92 in g_strdup_vprintf (/lib64/libglib-2.0.so.0+0x81a92) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    polkit-org#4 0x7f3a48480b50 in g_strdup_printf (/lib64/libglib-2.0.so.0+0x81b50) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    polkit-org#5 0x41fcec in js_polkit_spawn ../src/polkitbackend/polkitbackendduktapeauthority.c:1090
    polkit-org#6 0x7f3a483b31b8 in duk__handle_call_raw.lto_priv.0 (/lib64/libduktape.so.207+0x2a1b8) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#7 0x7f3a483962e1 in duk__js_execute_bytecode_inner.lto_priv.0 (/lib64/libduktape.so.207+0xd2e1) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#8 0x7f3a483b33eb in duk_js_execute_bytecode (/lib64/libduktape.so.207+0x2a3eb) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#9 0x7f3a483b319d in duk__handle_call_raw.lto_priv.0 (/lib64/libduktape.so.207+0x2a19d) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#10 0x7f3a48399ab0 in duk__pcall_prop_raw (/lib64/libduktape.so.207+0x10ab0) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#11 0x7f3a483b23cc in duk_handle_safe_call.lto_priv.0 (/lib64/libduktape.so.207+0x293cc) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#12 0x7f3a483972e8 in duk_pcall_prop (/lib64/libduktape.so.207+0xe2e8) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#13 0x41d048 in runaway_killer_thread_call_js ../src/polkitbackend/polkitbackendduktapeauthority.c:682
    polkit-org#14 0x7f3a4888cb45 in asan_thread_start(void*) (/lib64/libasan.so.8+0x5db45) (BuildId: 388cbb99455c2e2eaec79bd8db6d9a78eb39f80d)

Direct leak of 128 byte(s) in 1 object(s) allocated from:
    #0 0x7f3a489247b8 in realloc.part.0 (/lib64/libasan.so.8+0xf57b8) (BuildId: 388cbb99455c2e2eaec79bd8db6d9a78eb39f80d)
    #1 0x7f3a4846304a in g_realloc (/lib64/libglib-2.0.so.0+0x6404a) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    #2 0x7f3a48481b19 in g_string_expand (/lib64/libglib-2.0.so.0+0x82b19) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    #3 0x7f3a48481b90 in g_string_sized_new (/lib64/libglib-2.0.so.0+0x82b90) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    polkit-org#4 0x41fb0f in js_polkit_spawn ../src/polkitbackend/polkitbackendduktapeauthority.c:1099
    polkit-org#5 0x7f3a483b31b8 in duk__handle_call_raw.lto_priv.0 (/lib64/libduktape.so.207+0x2a1b8) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#6 0x7f3a483962e1 in duk__js_execute_bytecode_inner.lto_priv.0 (/lib64/libduktape.so.207+0xd2e1) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#7 0x7f3a483b33eb in duk_js_execute_bytecode (/lib64/libduktape.so.207+0x2a3eb) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#8 0x7f3a483b319d in duk__handle_call_raw.lto_priv.0 (/lib64/libduktape.so.207+0x2a19d) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#9 0x7f3a48399ab0 in duk__pcall_prop_raw (/lib64/libduktape.so.207+0x10ab0) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#10 0x7f3a483b23cc in duk_handle_safe_call.lto_priv.0 (/lib64/libduktape.so.207+0x293cc) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#11 0x7f3a483972e8 in duk_pcall_prop (/lib64/libduktape.so.207+0xe2e8) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#12 0x41d048 in runaway_killer_thread_call_js ../src/polkitbackend/polkitbackendduktapeauthority.c:682
    polkit-org#13 0x7f3a4888cb45 in asan_thread_start(void*) (/lib64/libasan.so.8+0x5db45) (BuildId: 388cbb99455c2e2eaec79bd8db6d9a78eb39f80d)

SUMMARY: AddressSanitizer: 359 byte(s) leaked in 3 allocation(s).
mrc0mmand added a commit to mrc0mmand/polkit that referenced this issue Jun 26, 2024
@mrc0mmand
Replace duk_error() with duk_push_error_object() + duk_throw()
4d84c00 
duk_error() never returns, so the error string gets leaked every time an error
is thrown. Let's avoid this by creating the error object first without throwing
it, freeing the original error string (we don't need it anymore since it gets
sprintf-ed into the error object), and then throwing the error object from top
of the current context stack.

 =================================================================
==1270==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 231 byte(s) in 2 object(s) allocated from:
    #0 0x7f3a489258b7 in malloc (/lib64/libasan.so.8+0xf68b7) (BuildId: 388cbb99455c2e2eaec79bd8db6d9a78eb39f80d)
    #1 0x7f3a47b27487 in __vasprintf_internal (/lib64/libc.so.6+0x8a487) (BuildId: 4a92fcedbba6d6d2629ce066a2970017faa9995e)
    #2 0x7f3a484b06a2 in g_vasprintf (/lib64/libglib-2.0.so.0+0xb16a2) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    #3 0x7f3a48480a92 in g_strdup_vprintf (/lib64/libglib-2.0.so.0+0x81a92) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    polkit-org#4 0x7f3a48480b50 in g_strdup_printf (/lib64/libglib-2.0.so.0+0x81b50) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    polkit-org#5 0x41fcec in js_polkit_spawn ../src/polkitbackend/polkitbackendduktapeauthority.c:1090
    polkit-org#6 0x7f3a483b31b8 in duk__handle_call_raw.lto_priv.0 (/lib64/libduktape.so.207+0x2a1b8) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#7 0x7f3a483962e1 in duk__js_execute_bytecode_inner.lto_priv.0 (/lib64/libduktape.so.207+0xd2e1) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#8 0x7f3a483b33eb in duk_js_execute_bytecode (/lib64/libduktape.so.207+0x2a3eb) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#9 0x7f3a483b319d in duk__handle_call_raw.lto_priv.0 (/lib64/libduktape.so.207+0x2a19d) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#10 0x7f3a48399ab0 in duk__pcall_prop_raw (/lib64/libduktape.so.207+0x10ab0) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#11 0x7f3a483b23cc in duk_handle_safe_call.lto_priv.0 (/lib64/libduktape.so.207+0x293cc) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#12 0x7f3a483972e8 in duk_pcall_prop (/lib64/libduktape.so.207+0xe2e8) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#13 0x41d048 in runaway_killer_thread_call_js ../src/polkitbackend/polkitbackendduktapeauthority.c:682
    polkit-org#14 0x7f3a4888cb45 in asan_thread_start(void*) (/lib64/libasan.so.8+0x5db45) (BuildId: 388cbb99455c2e2eaec79bd8db6d9a78eb39f80d)

Direct leak of 128 byte(s) in 1 object(s) allocated from:
    #0 0x7f3a489247b8 in realloc.part.0 (/lib64/libasan.so.8+0xf57b8) (BuildId: 388cbb99455c2e2eaec79bd8db6d9a78eb39f80d)
    #1 0x7f3a4846304a in g_realloc (/lib64/libglib-2.0.so.0+0x6404a) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    #2 0x7f3a48481b19 in g_string_expand (/lib64/libglib-2.0.so.0+0x82b19) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    #3 0x7f3a48481b90 in g_string_sized_new (/lib64/libglib-2.0.so.0+0x82b90) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    polkit-org#4 0x41fb0f in js_polkit_spawn ../src/polkitbackend/polkitbackendduktapeauthority.c:1099
    polkit-org#5 0x7f3a483b31b8 in duk__handle_call_raw.lto_priv.0 (/lib64/libduktape.so.207+0x2a1b8) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#6 0x7f3a483962e1 in duk__js_execute_bytecode_inner.lto_priv.0 (/lib64/libduktape.so.207+0xd2e1) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#7 0x7f3a483b33eb in duk_js_execute_bytecode (/lib64/libduktape.so.207+0x2a3eb) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#8 0x7f3a483b319d in duk__handle_call_raw.lto_priv.0 (/lib64/libduktape.so.207+0x2a19d) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#9 0x7f3a48399ab0 in duk__pcall_prop_raw (/lib64/libduktape.so.207+0x10ab0) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#10 0x7f3a483b23cc in duk_handle_safe_call.lto_priv.0 (/lib64/libduktape.so.207+0x293cc) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#11 0x7f3a483972e8 in duk_pcall_prop (/lib64/libduktape.so.207+0xe2e8) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    polkit-org#12 0x41d048 in runaway_killer_thread_call_js ../src/polkitbackend/polkitbackendduktapeauthority.c:682
    polkit-org#13 0x7f3a4888cb45 in asan_thread_start(void*) (/lib64/libasan.so.8+0x5db45) (BuildId: 388cbb99455c2e2eaec79bd8db6d9a78eb39f80d)

SUMMARY: AddressSanitizer: 359 byte(s) leaked in 3 allocation(s).
jrybar-rh pushed a commit that referenced this issue Jun 26, 2024
@mrc0mmand
test: drop mocklibc (#461)
8e17f09 
* test: drop mocklibc

Let's get rid of mocklibc and replace it with a simple combination of
mount & user namespaces + bind mount to replace the host's /etc with our
own version.

This means we don't $LD_PRELOAD the mocklibc DSO, but instead run each
unit test through a very simple python wrapper that sets up a temporary
user & mount namespace through the unshare() syscall,  gains "fake" root
using uid_map and gid_map, overmounts /etc in this new namespace (with
our own custom test files), and then executes the test binary itself.
Check user_namespaces(7) for more information about the namespace
shenanigans.

* Replace duk_error() with duk_push_error_object() + duk_throw()

duk_error() never returns, so the error string gets leaked every time an error
is thrown. Let's avoid this by creating the error object first without throwing
it, freeing the original error string (we don't need it anymore since it gets
sprintf-ed into the error object), and then throwing the error object from top
of the current context stack.

 =================================================================
==1270==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 231 byte(s) in 2 object(s) allocated from:
    #0 0x7f3a489258b7 in malloc (/lib64/libasan.so.8+0xf68b7) (BuildId: 388cbb99455c2e2eaec79bd8db6d9a78eb39f80d)
    #1 0x7f3a47b27487 in __vasprintf_internal (/lib64/libc.so.6+0x8a487) (BuildId: 4a92fcedbba6d6d2629ce066a2970017faa9995e)
    #2 0x7f3a484b06a2 in g_vasprintf (/lib64/libglib-2.0.so.0+0xb16a2) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    #3 0x7f3a48480a92 in g_strdup_vprintf (/lib64/libglib-2.0.so.0+0x81a92) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    #4 0x7f3a48480b50 in g_strdup_printf (/lib64/libglib-2.0.so.0+0x81b50) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    #5 0x41fcec in js_polkit_spawn ../src/polkitbackend/polkitbackendduktapeauthority.c:1090
    #6 0x7f3a483b31b8 in duk__handle_call_raw.lto_priv.0 (/lib64/libduktape.so.207+0x2a1b8) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    #7 0x7f3a483962e1 in duk__js_execute_bytecode_inner.lto_priv.0 (/lib64/libduktape.so.207+0xd2e1) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    #8 0x7f3a483b33eb in duk_js_execute_bytecode (/lib64/libduktape.so.207+0x2a3eb) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    #9 0x7f3a483b319d in duk__handle_call_raw.lto_priv.0 (/lib64/libduktape.so.207+0x2a19d) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    #10 0x7f3a48399ab0 in duk__pcall_prop_raw (/lib64/libduktape.so.207+0x10ab0) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    #11 0x7f3a483b23cc in duk_handle_safe_call.lto_priv.0 (/lib64/libduktape.so.207+0x293cc) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    #12 0x7f3a483972e8 in duk_pcall_prop (/lib64/libduktape.so.207+0xe2e8) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    #13 0x41d048 in runaway_killer_thread_call_js ../src/polkitbackend/polkitbackendduktapeauthority.c:682
    #14 0x7f3a4888cb45 in asan_thread_start(void*) (/lib64/libasan.so.8+0x5db45) (BuildId: 388cbb99455c2e2eaec79bd8db6d9a78eb39f80d)

Direct leak of 128 byte(s) in 1 object(s) allocated from:
    #0 0x7f3a489247b8 in realloc.part.0 (/lib64/libasan.so.8+0xf57b8) (BuildId: 388cbb99455c2e2eaec79bd8db6d9a78eb39f80d)
    #1 0x7f3a4846304a in g_realloc (/lib64/libglib-2.0.so.0+0x6404a) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    #2 0x7f3a48481b19 in g_string_expand (/lib64/libglib-2.0.so.0+0x82b19) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    #3 0x7f3a48481b90 in g_string_sized_new (/lib64/libglib-2.0.so.0+0x82b90) (BuildId: 795136df3faa85587229ddc59d709f81d6f697df)
    #4 0x41fb0f in js_polkit_spawn ../src/polkitbackend/polkitbackendduktapeauthority.c:1099
    #5 0x7f3a483b31b8 in duk__handle_call_raw.lto_priv.0 (/lib64/libduktape.so.207+0x2a1b8) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    #6 0x7f3a483962e1 in duk__js_execute_bytecode_inner.lto_priv.0 (/lib64/libduktape.so.207+0xd2e1) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    #7 0x7f3a483b33eb in duk_js_execute_bytecode (/lib64/libduktape.so.207+0x2a3eb) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    #8 0x7f3a483b319d in duk__handle_call_raw.lto_priv.0 (/lib64/libduktape.so.207+0x2a19d) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    #9 0x7f3a48399ab0 in duk__pcall_prop_raw (/lib64/libduktape.so.207+0x10ab0) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    #10 0x7f3a483b23cc in duk_handle_safe_call.lto_priv.0 (/lib64/libduktape.so.207+0x293cc) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    #11 0x7f3a483972e8 in duk_pcall_prop (/lib64/libduktape.so.207+0xe2e8) (BuildId: a9f661ee1766489794e9ece7cfd0d6a7fb420ccb)
    #12 0x41d048 in runaway_killer_thread_call_js ../src/polkitbackend/polkitbackendduktapeauthority.c:682
    #13 0x7f3a4888cb45 in asan_thread_start(void*) (/lib64/libasan.so.8+0x5db45) (BuildId: 388cbb99455c2e2eaec79bd8db6d9a78eb39f80d)

SUMMARY: AddressSanitizer: 359 byte(s) leaked in 3 allocation(s).

* packit: run unit tests during package build
mrc0mmand added a commit to mrc0mmand/polkit that referenced this issue Nov 4, 2024
@mrc0mmand
Free the credentials iterator as well
5b1a8b8 
Otherwise it gets leaked:

[356645.511913] systemd[1]: Stopping polkit.service - Authorization Manager...
[356645.514024] polkitd[15468]: Handling SIGTERM
[356645.514024] polkitd[15468]: Shutting down
[356645.519238] polkitd[15468]: Exiting with code 0
[356645.618456] polkitd[15468]: =================================================================
[356645.618456] polkitd[15468]: ==15468==ERROR: LeakSanitizer: detected memory leaks
[356645.618456] polkitd[15468]: Direct leak of 4000 byte(s) in 50 object(s) allocated from:
[356645.619128] polkitd[15468]:     #0 0x0000004a1a33 in malloc (/usr/lib/polkit-1/polkitd+0x4a1a33) (BuildId: a927b98f2ddc1b57773bec4e0f8a537fe46632b1)
[356645.619128] polkitd[15468]:     #1 0x7f1b20324039 in g_malloc (/lib64/libglib-2.0.so.0+0x47039) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619128] polkitd[15468]:     #2 0x7f1b2033d4d4 in g_slice_alloc (/lib64/libglib-2.0.so.0+0x604d4) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619128] polkitd[15468]:     #3 0x7f1b2036b547 in g_variant_iter_new (/lib64/libglib-2.0.so.0+0x8e547) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619128] polkitd[15468]:     polkit-org#4 0x7f1b2036dc5d  (/lib64/libglib-2.0.so.0+0x90c5d) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619128] polkitd[15468]:     polkit-org#5 0x7f1b2036d8b7  (/lib64/libglib-2.0.so.0+0x908b7) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619128] polkitd[15468]:     polkit-org#6 0x7f1b2036de0f in g_variant_get_va (/lib64/libglib-2.0.so.0+0x90e0f) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619128] polkitd[15468]:     polkit-org#7 0x7f1b2036df88 in g_variant_get (/lib64/libglib-2.0.so.0+0x90f88) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619128] polkitd[15468]:     polkit-org#8 0x7f1b2067ce85 in polkit_system_bus_name_get_creds_sync /root/polkit/build/../src/polkit/polkitsystembusname.c:542:3
[356645.619128] polkitd[15468]:     polkit-org#9 0x7f1b2067c997 in polkit_system_bus_name_get_process_sync /root/polkit/build/../src/polkit/polkitsystembusname.c:629:8
[356645.619128] polkitd[15468]:     polkit-org#10 0x0000005069af in polkit_backend_session_monitor_get_session_for_subject /root/polkit/build/../src/polkitbackend/polkitbackendsessionmonitor-systemd.c:365:41
[356645.619128] polkitd[15468]:     polkit-org#11 0x0000004f11b5 in polkit_backend_interactive_authority_revoke_temporary_authorization_by_id /root/polkit/build/../src/polkitbackend/polkitbackendinteractiveauthority.c:3567:24
[356645.619128] polkitd[15468]:     polkit-org#12 0x0000004ea2c8 in server_handle_revoke_temporary_authorization_by_id /root/polkit/build/../src/polkitbackend/polkitbackendauthority.c:1292:8
[356645.619128] polkitd[15468]:     polkit-org#13 0x0000004e805c in server_handle_method_call /root/polkit/build/../src/polkitbackend/polkitbackendauthority.c:1346:5
[356645.619128] polkitd[15468]:     polkit-org#14 0x7f1b20565195  (/lib64/libgio-2.0.so.0+0xd9195) (BuildId: d06dc1cc6f8ddbb3cda89ef05ecf83d6fe037ae7)
[356645.619332] polkitd[15468]:     polkit-org#15 0x7f1b20323e5c  (/lib64/libglib-2.0.so.0+0x46e5c) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619332] polkitd[15468]:     polkit-org#16 0x7f1b2031d60b  (/lib64/libglib-2.0.so.0+0x4060b) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619332] polkitd[15468]:     polkit-org#17 0x7f1b2037db37  (/lib64/libglib-2.0.so.0+0xa0b37) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619332] polkitd[15468]:     polkit-org#18 0x7f1b203236f6 in g_main_loop_run (/lib64/libglib-2.0.so.0+0x466f6) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619332] polkitd[15468]:     polkit-org#19 0x0000004e3619 in main /root/polkit/build/../src/polkitbackend/polkitd.c:298:3
[356645.619332] polkitd[15468]:     polkit-org#20 0x7f1b1fe59447 in __libc_start_call_main (/lib64/libc.so.6+0x3447) (BuildId: f3ac204eaa4ceed81438c80e80998209f828bb1a)
[356645.619332] polkitd[15468]:     polkit-org#21 0x7f1b1fe5950a in __libc_start_main@GLIBC_2.2.5 (/lib64/libc.so.6+0x350a) (BuildId: f3ac204eaa4ceed81438c80e80998209f828bb1a)
[356645.619332] polkitd[15468]:     polkit-org#22 0x000000401c04 in _start (/usr/lib/polkit-1/polkitd+0x401c04) (BuildId: a927b98f2ddc1b57773bec4e0f8a537fe46632b1)
...

Follow-up for 8cabb11.
mrc0mmand added a commit to mrc0mmand/polkit that referenced this issue Nov 4, 2024
@mrc0mmand
Don't leak the error object
c8bc9db 
[357268.621800] systemd[1]: Stopping polkit.service - Authorization Manager...
[357268.623321] polkitd[15601]: Handling SIGTERM
[357268.623321] polkitd[15601]: Shutting down
[357268.629022] polkitd[15601]: Exiting with code 0
[357268.748206] polkitd[15601]: =================================================================
[357268.748455] polkitd[15601]: ==15601==ERROR: LeakSanitizer: detected memory leaks
[357268.748455] polkitd[15601]: Direct leak of 48 byte(s) in 3 object(s) allocated from:
[357268.749382] polkitd[15601]:     #0 0x0000004a1a33 in malloc (/usr/lib/polkit-1/polkitd+0x4a1a33) (BuildId: a927b98f2ddc1b57773bec4e0f8a537fe46632b1)
[357268.749382] polkitd[15601]:     #1 0x7fe21ebe5039 in g_malloc (/lib64/libglib-2.0.so.0+0x47039) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     #2 0x7fe21ebfe4d4 in g_slice_alloc (/lib64/libglib-2.0.so.0+0x604d4) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     #3 0x7fe21ebfe5c4 in g_slice_alloc0 (/lib64/libglib-2.0.so.0+0x605c4) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     polkit-org#4 0x7fe21ebc6910  (/lib64/libglib-2.0.so.0+0x28910) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     polkit-org#5 0x7fe21ebc70a4 in g_error_new_valist (/lib64/libglib-2.0.so.0+0x290a4) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     polkit-org#6 0x7fe21ebc72e0 in g_set_error (/lib64/libglib-2.0.so.0+0x292e0) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     polkit-org#7 0x7fe21ee50b52  (/lib64/libgio-2.0.so.0+0x103b52) (BuildId: d06dc1cc6f8ddbb3cda89ef05ecf83d6fe037ae7)
[357268.749382] polkitd[15601]:     polkit-org#8 0x000000508a88 in ensure_all_files /root/polkit/build/../src/polkitbackend/polkitbackendactionpool.c:572:18
[357268.749382] polkitd[15601]:     polkit-org#9 0x0000005097c1 in polkit_backend_action_pool_get_all_actions /root/polkit/build/../src/polkitbackend/polkitbackendactionpool.c:456:3
[357268.749382] polkitd[15601]:     polkit-org#10 0x0000004e80fd in server_handle_enumerate_actions /root/polkit/build/../src/polkitbackend/polkitbackendauthority.c:689:13
[357268.749382] polkitd[15601]:     polkit-org#11 0x0000004e80fd in server_handle_method_call /root/polkit/build/../src/polkitbackend/polkitbackendauthority.c:1326:5
[357268.749382] polkitd[15601]:     polkit-org#12 0x7fe21ee26195  (/lib64/libgio-2.0.so.0+0xd9195) (BuildId: d06dc1cc6f8ddbb3cda89ef05ecf83d6fe037ae7)
[357268.749382] polkitd[15601]:     polkit-org#13 0x7fe21ebe4e5c  (/lib64/libglib-2.0.so.0+0x46e5c) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     polkit-org#14 0x7fe21ebde60b  (/lib64/libglib-2.0.so.0+0x4060b) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     polkit-org#15 0x7fe21ec3eb37  (/lib64/libglib-2.0.so.0+0xa0b37) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     polkit-org#16 0x7fe21ebe46f6 in g_main_loop_run (/lib64/libglib-2.0.so.0+0x466f6) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749797] polkitd[15601]:     polkit-org#17 0x0000004e3619 in main /root/polkit/build/../src/polkitbackend/polkitd.c:298:3
[357268.749797] polkitd[15601]:     polkit-org#18 0x7fe21e71a447 in __libc_start_call_main (/lib64/libc.so.6+0x3447) (BuildId: f3ac204eaa4ceed81438c80e80998209f828bb1a)
[357268.749797] polkitd[15601]:     polkit-org#19 0x7fe21e71a50a in __libc_start_main@GLIBC_2.2.5 (/lib64/libc.so.6+0x350a) (BuildId: f3ac204eaa4ceed81438c80e80998209f828bb1a)
[357268.749797] polkitd[15601]:     polkit-org#20 0x000000401c04 in _start (/usr/lib/polkit-1/polkitd+0x401c04) (BuildId: a927b98f2ddc1b57773bec4e0f8a537fe46632b1)

Follow-up for 9958c25.
jrybar-rh pushed a commit that referenced this issue Nov 6, 2024
@mrc0mmand @jrybar-rh
Free the credentials iterator as well
5cce296 
Otherwise it gets leaked:

[356645.511913] systemd[1]: Stopping polkit.service - Authorization Manager...
[356645.514024] polkitd[15468]: Handling SIGTERM
[356645.514024] polkitd[15468]: Shutting down
[356645.519238] polkitd[15468]: Exiting with code 0
[356645.618456] polkitd[15468]: =================================================================
[356645.618456] polkitd[15468]: ==15468==ERROR: LeakSanitizer: detected memory leaks
[356645.618456] polkitd[15468]: Direct leak of 4000 byte(s) in 50 object(s) allocated from:
[356645.619128] polkitd[15468]:     #0 0x0000004a1a33 in malloc (/usr/lib/polkit-1/polkitd+0x4a1a33) (BuildId: a927b98f2ddc1b57773bec4e0f8a537fe46632b1)
[356645.619128] polkitd[15468]:     #1 0x7f1b20324039 in g_malloc (/lib64/libglib-2.0.so.0+0x47039) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619128] polkitd[15468]:     #2 0x7f1b2033d4d4 in g_slice_alloc (/lib64/libglib-2.0.so.0+0x604d4) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619128] polkitd[15468]:     #3 0x7f1b2036b547 in g_variant_iter_new (/lib64/libglib-2.0.so.0+0x8e547) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619128] polkitd[15468]:     #4 0x7f1b2036dc5d  (/lib64/libglib-2.0.so.0+0x90c5d) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619128] polkitd[15468]:     #5 0x7f1b2036d8b7  (/lib64/libglib-2.0.so.0+0x908b7) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619128] polkitd[15468]:     #6 0x7f1b2036de0f in g_variant_get_va (/lib64/libglib-2.0.so.0+0x90e0f) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619128] polkitd[15468]:     #7 0x7f1b2036df88 in g_variant_get (/lib64/libglib-2.0.so.0+0x90f88) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619128] polkitd[15468]:     #8 0x7f1b2067ce85 in polkit_system_bus_name_get_creds_sync /root/polkit/build/../src/polkit/polkitsystembusname.c:542:3
[356645.619128] polkitd[15468]:     #9 0x7f1b2067c997 in polkit_system_bus_name_get_process_sync /root/polkit/build/../src/polkit/polkitsystembusname.c:629:8
[356645.619128] polkitd[15468]:     #10 0x0000005069af in polkit_backend_session_monitor_get_session_for_subject /root/polkit/build/../src/polkitbackend/polkitbackendsessionmonitor-systemd.c:365:41
[356645.619128] polkitd[15468]:     #11 0x0000004f11b5 in polkit_backend_interactive_authority_revoke_temporary_authorization_by_id /root/polkit/build/../src/polkitbackend/polkitbackendinteractiveauthority.c:3567:24
[356645.619128] polkitd[15468]:     #12 0x0000004ea2c8 in server_handle_revoke_temporary_authorization_by_id /root/polkit/build/../src/polkitbackend/polkitbackendauthority.c:1292:8
[356645.619128] polkitd[15468]:     #13 0x0000004e805c in server_handle_method_call /root/polkit/build/../src/polkitbackend/polkitbackendauthority.c:1346:5
[356645.619128] polkitd[15468]:     #14 0x7f1b20565195  (/lib64/libgio-2.0.so.0+0xd9195) (BuildId: d06dc1cc6f8ddbb3cda89ef05ecf83d6fe037ae7)
[356645.619332] polkitd[15468]:     #15 0x7f1b20323e5c  (/lib64/libglib-2.0.so.0+0x46e5c) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619332] polkitd[15468]:     #16 0x7f1b2031d60b  (/lib64/libglib-2.0.so.0+0x4060b) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619332] polkitd[15468]:     #17 0x7f1b2037db37  (/lib64/libglib-2.0.so.0+0xa0b37) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619332] polkitd[15468]:     #18 0x7f1b203236f6 in g_main_loop_run (/lib64/libglib-2.0.so.0+0x466f6) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[356645.619332] polkitd[15468]:     #19 0x0000004e3619 in main /root/polkit/build/../src/polkitbackend/polkitd.c:298:3
[356645.619332] polkitd[15468]:     #20 0x7f1b1fe59447 in __libc_start_call_main (/lib64/libc.so.6+0x3447) (BuildId: f3ac204eaa4ceed81438c80e80998209f828bb1a)
[356645.619332] polkitd[15468]:     #21 0x7f1b1fe5950a in __libc_start_main@GLIBC_2.2.5 (/lib64/libc.so.6+0x350a) (BuildId: f3ac204eaa4ceed81438c80e80998209f828bb1a)
[356645.619332] polkitd[15468]:     #22 0x000000401c04 in _start (/usr/lib/polkit-1/polkitd+0x401c04) (BuildId: a927b98f2ddc1b57773bec4e0f8a537fe46632b1)
...

Follow-up for 8cabb11.
jrybar-rh pushed a commit that referenced this issue Nov 6, 2024
@mrc0mmand @jrybar-rh
Don't leak the error object
b709b69 
[357268.621800] systemd[1]: Stopping polkit.service - Authorization Manager...
[357268.623321] polkitd[15601]: Handling SIGTERM
[357268.623321] polkitd[15601]: Shutting down
[357268.629022] polkitd[15601]: Exiting with code 0
[357268.748206] polkitd[15601]: =================================================================
[357268.748455] polkitd[15601]: ==15601==ERROR: LeakSanitizer: detected memory leaks
[357268.748455] polkitd[15601]: Direct leak of 48 byte(s) in 3 object(s) allocated from:
[357268.749382] polkitd[15601]:     #0 0x0000004a1a33 in malloc (/usr/lib/polkit-1/polkitd+0x4a1a33) (BuildId: a927b98f2ddc1b57773bec4e0f8a537fe46632b1)
[357268.749382] polkitd[15601]:     #1 0x7fe21ebe5039 in g_malloc (/lib64/libglib-2.0.so.0+0x47039) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     #2 0x7fe21ebfe4d4 in g_slice_alloc (/lib64/libglib-2.0.so.0+0x604d4) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     #3 0x7fe21ebfe5c4 in g_slice_alloc0 (/lib64/libglib-2.0.so.0+0x605c4) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     #4 0x7fe21ebc6910  (/lib64/libglib-2.0.so.0+0x28910) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     #5 0x7fe21ebc70a4 in g_error_new_valist (/lib64/libglib-2.0.so.0+0x290a4) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     #6 0x7fe21ebc72e0 in g_set_error (/lib64/libglib-2.0.so.0+0x292e0) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     #7 0x7fe21ee50b52  (/lib64/libgio-2.0.so.0+0x103b52) (BuildId: d06dc1cc6f8ddbb3cda89ef05ecf83d6fe037ae7)
[357268.749382] polkitd[15601]:     #8 0x000000508a88 in ensure_all_files /root/polkit/build/../src/polkitbackend/polkitbackendactionpool.c:572:18
[357268.749382] polkitd[15601]:     #9 0x0000005097c1 in polkit_backend_action_pool_get_all_actions /root/polkit/build/../src/polkitbackend/polkitbackendactionpool.c:456:3
[357268.749382] polkitd[15601]:     #10 0x0000004e80fd in server_handle_enumerate_actions /root/polkit/build/../src/polkitbackend/polkitbackendauthority.c:689:13
[357268.749382] polkitd[15601]:     #11 0x0000004e80fd in server_handle_method_call /root/polkit/build/../src/polkitbackend/polkitbackendauthority.c:1326:5
[357268.749382] polkitd[15601]:     #12 0x7fe21ee26195  (/lib64/libgio-2.0.so.0+0xd9195) (BuildId: d06dc1cc6f8ddbb3cda89ef05ecf83d6fe037ae7)
[357268.749382] polkitd[15601]:     #13 0x7fe21ebe4e5c  (/lib64/libglib-2.0.so.0+0x46e5c) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     #14 0x7fe21ebde60b  (/lib64/libglib-2.0.so.0+0x4060b) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     #15 0x7fe21ec3eb37  (/lib64/libglib-2.0.so.0+0xa0b37) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749382] polkitd[15601]:     #16 0x7fe21ebe46f6 in g_main_loop_run (/lib64/libglib-2.0.so.0+0x466f6) (BuildId: c18bb9dc5295ff894f6098fa33e9ba39341c5bc1)
[357268.749797] polkitd[15601]:     #17 0x0000004e3619 in main /root/polkit/build/../src/polkitbackend/polkitd.c:298:3
[357268.749797] polkitd[15601]:     #18 0x7fe21e71a447 in __libc_start_call_main (/lib64/libc.so.6+0x3447) (BuildId: f3ac204eaa4ceed81438c80e80998209f828bb1a)
[357268.749797] polkitd[15601]:     #19 0x7fe21e71a50a in __libc_start_main@GLIBC_2.2.5 (/lib64/libc.so.6+0x350a) (BuildId: f3ac204eaa4ceed81438c80e80998209f828bb1a)
[357268.749797] polkitd[15601]:     #20 0x000000401c04 in _start (/usr/lib/polkit-1/polkitd+0x401c04) (BuildId: a927b98f2ddc1b57773bec4e0f8a537fe46632b1)

Follow-up for 9958c25.
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