#8144: left shift of negative value bug in libavcodec/ac3enc.c
-------------------------------------+-------------------------------------
Reporter: Suhwan | Type: defect
Status: new | Priority: important
Component: | Version: git-
undetermined | master
Keywords: ubsan | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
There's left shift of negative value bug in libavcodec/ac3enc.c
{{{
libavcodec/ac3enc.c:1068:37: runtime error: left shift of negative value
-32
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
libavcodec/ac3enc.c:1068:37 in
}}}
How to reproduce:
{{{
% ./ffmpeg_g -t 1 -y -r 61 -i pokem.avi -target dvd -map 0 -aframes 91 -r
114 -ab 123k -ar 48000 -ac 20 output/tmp.aiff
ffmpeg version N-94887-ge55018ee11 (git master)
built on ... ubuntu 18.04 with clang-6 and UBSAN option.
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8144>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
_______________________________________________
FFmpeg-trac mailing list
FFmpeg-trac@avcodec.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-trac
To unsubscribe, visit link above, or email
ffmpeg-trac-requ...@ffmpeg.org with subject "unsubscribe".
