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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-11-10 22:36:25 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-02-02 14:18:21 +0100 |
| commit | a3763e63a6a8b29547e75a56bd48a5c60cc9b9fa (patch) | |
| tree | a0636bd8570435e372360b597cbec8acdafd6959 | |
| parent | be6695995d263e1462e41828d3446e6e47ce2511 (diff) | |
| download | ffmpeg-a3763e63a6a8b29547e75a56bd48a5c60cc9b9fa.tar.gz | |
avformat/vividas: Check sample_rate
Fixes: Assertion c > 0 failed at libavutil/mathematics.c
Fixes: 27001/clusterfuzz-testcase-minimized-ffmpeg_dem_VIVIDAS_fuzzer-5726041328582656
Fixes: 27453/clusterfuzz-testcase-minimized-ffmpeg_dem_VIVIDAS_fuzzer-5716060384526336
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 b1bced5433adcf5ad743d929c788b66af9efaf24)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/vividas.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/vividas.c b/libavformat/vividas.c index 2eedc4edba..fb872767e8 100644 --- a/libavformat/vividas.c +++ b/libavformat/vividas.c @@ -373,6 +373,8 @@ static int track_header(VividasDemuxContext *viv, AVFormatContext *s, uint8_t * avio_rl16(pb); //codec_subid st->codecpar->channels = avio_rl16(pb); // channels st->codecpar->sample_rate = avio_rl32(pb); // sample_rate + if (st->codecpar->sample_rate <= 0) + return AVERROR_INVALIDDATA; avio_seek(pb, 10, SEEK_CUR); // data_1 q = avio_r8(pb); avio_seek(pb, q, SEEK_CUR); // data_2 |