Opened 5 years ago
Closed 4 years ago
#8142 closed defect (fixed)
signed integer overflow in fftools/ffmpeg.c
Reported by: | Suhwan | Owned by: | |
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Priority: | important | Component: | undetermined |
Version: | git-master | Keywords: | ubsan |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | yes | |
Analyzed by developer: | no |
Description
Summary of the bug:
There's a signed integer overflow bug in fftools/ffmpeg.c:4238:34:
fftools/ffmpeg.c:4238:34: runtime error: signed integer overflow: -9223372036854775808 - 9223372036854775807 cannot be represented in type 'long' SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior fftools/ffmpeg.c:4238:34 in
How to reproduce:
% ./ffmpeg_g -stream_loop 21 -y -i Silent_Mobius-OpenDivX-200-sound.avi -target vcd -map 0 -c copy -aframes 100 -ar 48000 -ac 7 -b:v 599k output/tmp.nuv ffmpeg version N-94887-ge55018ee11 (git master) built on ... ubuntu 18.04 with clang-6 and UBSAN option.
Attachments (2)
Change History (3)
by , 5 years ago
Attachment: | Silent_Mobius-OpenDivX-200-sound.avi added |
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by , 5 years ago
Attachment: | gdb-signed added |
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comment:1 by , 4 years ago
Reproduced by developer: | set |
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Resolution: | → fixed |
Status: | new → closed |
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Fixed in 4f4ad33d96a01d82edf56d58599017cb0ae5bfa8