virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-03-17 20:17:55 +02:00
Code Issues Releases Activity

avcodec/fmvc: Check nb_blocks

Browse Source 
Fixes: out of array read
Fixes: 1508/clusterfuzz-testcase-minimized-5011336327069696

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0158b405a71f386c7844a3d975315afd47f16b5d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-13 01:22:27 +02:00
parent d9b25b3923
commit d2108de6b8
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
libavcodec/fmvc.c
View File

@ -561,6 +561,9 @@ static av_cold int decode_init(AVCodecContext *avctx)
}
s->nb_blocks = s->xb * s->yb;
if (!s->nb_blocks)
return AVERROR_INVALIDDATA;
s->blocks = av_calloc(s->nb_blocks, sizeof(*s->blocks));
if (!s->blocks)
return AVERROR(ENOMEM);