virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

avformat/cafdec: Check channels

Browse Source 
Fixes: signed integer overflow: -1184429040541376544 * 32 cannot be represented in type 'long'
Fixes: 31788/clusterfuzz-testcase-minimized-ffmpeg_dem_CAF_fuzzer-6236746338664448

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2021-04-09 22:46:13 +02:00
parent 54d8386f52
commit 641c1db22b
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libavformat/cafdec.c
View File

@ -79,7 +79,7 @@ static int read_desc_chunk(AVFormatContext *s)
st->codecpar->channels = avio_rb32(pb);
st->codecpar->bits_per_coded_sample = avio_rb32(pb);
if (caf->bytes_per_packet < 0 || caf->frames_per_packet < 0)
if (caf->bytes_per_packet < 0 || caf->frames_per_packet < 0 || st->codecpar->channels < 0)
return AVERROR_INVALIDDATA;
/* calculate bit rate for constant size packets */