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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-03-18 01:39:04 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-10 17:04:26 +0300 |
| commit | 44c75695b11b9a5fde583b4df6b0f610ef050873 (patch) | |
| tree | 1c1b7d6219d5dc44b4964c57fbfdf0ae0d87e385 /libavformat/mov.c | |
| parent | 188f48b6d49f6ce8e893ca49ad650d2a68dfd471 (diff) | |
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>
Diffstat (limited to 'libavformat/mov.c')
| -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 953fe4199e..f77e7310b3 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -2223,7 +2223,7 @@ 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; } |