#8162: left shift of negative value bug in libavcodec/mpeg12dec.c
-------------------------------------+-------------------------------------
Reporter: Suhwan | Type: defect
Status: new | Priority: normal
Component: | Version: git-
undetermined | master
Keywords: ubsan | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
There is a left shift of negative value bug in libavcodec/mpeg12dec.c
{{{
libavcodec/mpeg12dec.c:2017:14: runtime error: left shift of negative
value -622428417
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
libavcodec/mpeg12dec.c:2017:14 in
}}}
How to reproduce:
{{{
% ./ffmpeg_g -y -i pedestrians-bug001-minimal.gxf -loglevel 99 -map 0
-aframes 68 -ab 738k -ac 12 -strict 3 output/tmp.roq
ffmpeg version N-94943-g1db6e47e85
built on ubuntu 18.04 with clang-6 and UBSAN option.
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8162>
FFmpeg <https://ffmpeg.org>
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