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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-04-09 22:46:13 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-04-20 16:31:53 +0200 |
| commit | 641c1db22bb27752b925293ad93f68843baa43bf (patch) | |
| tree | bbf78ebdf46b4e41b597212bb5b88c54ead9fd73 /libavformat/cafdec.c | |
| parent | 54d8386f52547f8abfb8fbad35b61cbfee3eed41 (diff) | |
| download | ffmpeg-641c1db22bb27752b925293ad93f68843baa43bf.tar.gz | |
avformat/cafdec: Check channels
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>
Diffstat (limited to 'libavformat/cafdec.c')
| -rw-r--r-- | libavformat/cafdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/cafdec.c b/libavformat/cafdec.c index 2a9299d777..d97ca45ab8 100644 --- a/libavformat/cafdec.c +++ b/libavformat/cafdec.c @@ -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 */ |