#8093 closed defect (fixed)
Uninitialized use in h2645_parse
| Reported by: | Bowen Wang | Owned by: | |
|---|---|---|---|
| Priority: | important | Component: | avcodec |
| Version: | git-master | Keywords: | |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | yes | |
| Analyzed by developer: | yes |
Description
This bug is found in git commit 434588596fef6bd2cef17f8c9c2979a010153edd.
To trigger the bug:
valgrind ./ffmpeg -threads 1 -i test-input -f null /dev/null
Part of the Valgrind output:
==11496==
==11496== Conditional jump or move depends on uninitialised value(s)
==11496== at 0xCB9804: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x6B141F: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x5FF30F: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x60001F: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x5616B2: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x569744: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x275BE7: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x277682: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x26FC91: main (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496==
==11496== Conditional jump or move depends on uninitialised value(s)
==11496== at 0xCB98CA: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x6B141F: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x5FF30F: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x60001F: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x5616B2: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x569744: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x275BE7: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x277682: ??? (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496== by 0x26FC91: main (in /home/bwang/Bowen/gitrepo/aflpp-target/ffmpeg/ffmpeg-vanilla/ffmpeg)
==11496==
==11496==
==11496== HEAP SUMMARY:
==11496== in use at exit: 0 bytes in 0 blocks
==11496== total heap usage: 2,195 allocs, 2,195 frees, 1,924,470 bytes allocated
==11496==
==11496== All heap blocks were freed -- no leaks are possible
==11496==
==11496== For counts of detected and suppressed errors, rerun with: -v
==11496== Use --track-origins=yes to see where uninitialised values come from
==11496== ERROR SUMMARY: 4352 errors from 32 contexts (suppressed: 0 from 0)
Attachments (1)
Change History (4)
by , 5 years ago
| Attachment: | input.3497 added |
|---|
comment:1 by , 5 years ago
| Analyzed by developer: | set |
|---|---|
| Component: | undetermined → avcodec |
| Priority: | normal → important |
| Reproduced by developer: | set |
| Status: | new → open |
| Summary: | Uninitialized use in ffmpeg → Uninitialized use in h2645_parse |
| Version: | unspecified → git-master |
Regression since 992532ee3122d7938a7581988eea401b57de8189.
comment:2 by , 5 years ago
| Resolution: | → fixed |
|---|---|
| Status: | open → closed |
PoC input to trigger the bug