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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-03-17 23:39:04 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-04-01 11:38:44 +0200 |
| commit | 2af5b3fa086781dcaf84e412b76fe5348152d38d (patch) | |
| tree | 981781edacf4b23dfc91241feb0f34eae2c27541 | |
| parent | 5d1e309e673f57c0dceb3425f4158d4ca139496b (diff) | |
| download | ffmpeg-2af5b3fa086781dcaf84e412b76fe5348152d38d.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 9f717a94eb..5e0cedf594 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -2263,7 +2263,7 @@ 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; } |