Stowage/ffmpeg
2
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2025-12-08 06:09:50 +00:00
Code Issues Projects Releases Packages Wiki Activity

avfilter/avf_showwaves: Check history_nb_samples

Browse source 
Fixes: out of array access
Fixes: tickets/10756/poc18ffmpeg

Discovered by Zeng Yunxiang
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 08bd2cbfeb)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2023-12-30 02:39:58 +01:00
parent 41f32f0bc4
commit ea276a511a
No known key found for this signature in database
GPG key ID: B18E8928B3948D64
1 changed files with 2 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

2
libavfilter/avf_showwaves.c
View file

@ -440,6 +440,8 @@ static int config_output(AVFilterLink *outlink)
showwaves->history_nb_samples = av_rescale(showwaves->w * nb_channels * 2,
showwaves->n.num, showwaves->n.den);
if (showwaves->history_nb_samples <= 0)
return AVERROR(EINVAL);
showwaves->history = av_calloc(showwaves->history_nb_samples,
sizeof(*showwaves->history));
if (!showwaves->history)