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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-03-17 23:39:04 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-09 13:53:29 +0200 |
| commit | c450dcc5e2b95eb54f6a702b853958fe5b5f72da (patch) | |
| tree | a305db4b91192a0fa788c5de796b18d0eceac666 | |
| parent | 64a715b5ed457bf4533a5fe717256088d5959cae (diff) | |
| download | ffmpeg-c450dcc5e2b95eb54f6a702b853958fe5b5f72da.tar.gz | |
avformat/mov: Check sample size for overflow in mov_parse_stsd_audio()
Fixes: signed integer overflow: 2 * 1914708000 cannot be represented in type 'int'
Fixes: 31639/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-6303428239294464
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d35677736a59ec6579b4da63d9b1444986ba339e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/mov.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c index 7e392b8001..370fbc8e78 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -2222,7 +2222,7 @@ static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb, } bits_per_sample = av_get_bits_per_sample(st->codecpar->codec_id); - if (bits_per_sample) { + if (bits_per_sample && (bits_per_sample >> 3) * (uint64_t)st->codecpar->channels <= INT_MAX) { st->codecpar->bits_per_coded_sample = bits_per_sample; sc->sample_size = (bits_per_sample >> 3) * st->codecpar->channels; } |