pesigcheck: Fix crash on digest match #90
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Thanks for the patch. It would be good to put more information on the crash you see in the commit message. Looking more at the code, I dislike the existing practice of using a signed integer for this at all. I'd prefer a (If you'd prefer not to perform that refactoring, please let me know and I'll take care of it.) |
frozencemetery
requested changes
Jun 8, 2022
Set selected_digest when the digest is found in db or dbx.
This fixes the following crash of pesigcheck:
Program received signal SIGSEGV, Segmentation fault.
0x00005555555597fa in memcpy (__len=24, __src=0x31,
__dest=0x55555558d908)
at /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
34 return __builtin___memcpy_chk (__dest, __src, __len, __bos0 (__dest));
(gdb) bt
#0 0x00005555555597fa in memcpy (__len=24, __src=0x31,
__dest=0x55555558d908)
at /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#1 get_digest (digest=digest@entry=0x55555558d908,
ctx=<optimized out>, ctx=<optimized out>) at pesigcheck.c:226
#2 0x00005555555592fd in check_signature (
reasons=<synthetic pointer>, nreasons=<synthetic pointer>,
ctx=0x7fffffffded0) at pesigcheck.c:262
#3 main (argc=<optimized out>, argv=<optimized out>)
at pesigcheck.c:512
Signed-off-by: Visa Hankala <[email protected]>
I have not done that refactoring. |
frozencemetery
approved these changes
Jun 10, 2022
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Set selected_digest when the digest is found in db or dbx.
This fixes a crash in get_digest().
Signed-off-by: Visa Hankala [email protected]