[FFmpeg-trac] #8154(undetermined:new): signed integer overflow in fftools/ffmpeg_opt.c
FFmpeg
trac at avcodec.org
Sun Sep 15 18:09:35 EEST 2019
#8154: signed integer overflow in fftools/ffmpeg_opt.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 signed integer overflow in fftools/ffmpeg_opt.c
{{{
fftools/ffmpeg_opt.c:2778:44: runtime error: signed integer overflow:
30000299 * 1000 cannot be represented in type 'int'
}}}
How to reproduce:
{{{
% ./ffmpeg_g -loglevel 99 -y -r 45 -i audio-overhang.ogv -target dv -map 0
-c copy -c: v:59 dvbsub -disposition: a:9 xwd -disposition: a:66 targa
-vframes 98 -ab 815k -strict 2 output/tmp.xbin
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/8154>
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