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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-07-15 00:35:47 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-11-14 23:30:38 +0100 |
| commit | 68ee6f4d8b75bd535257ff601229b8fb70f47680 (patch) | |
| tree | e9eb89ef95022904288c891f813515e0dc074135 /libavcodec | |
| parent | 190b92359bb2b2d259b57655d56087a88b14c27e (diff) | |
| download | ffmpeg-68ee6f4d8b75bd535257ff601229b8fb70f47680.tar.gz | |
avcodec/ffwavesynth: Check sample rate before use
Fixes: division by zero
Fixes: 15725/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFWAVESYNTH_fuzzer-5641231956180992
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c95857a4237d7a0c55378a44f51d2d809f3bc8f5)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/ffwavesynth.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/ffwavesynth.c b/libavcodec/ffwavesynth.c index 793eada7a5..1dbfaa5847 100644 --- a/libavcodec/ffwavesynth.c +++ b/libavcodec/ffwavesynth.c @@ -270,7 +270,7 @@ static int wavesynth_parse_extradata(AVCodecContext *avc) dt = in->ts_end - in->ts_start; switch (in->type) { case WS_SINE: - if (edata_end - edata < 20) + if (edata_end - edata < 20 || avc->sample_rate <= 0) return AVERROR(EINVAL); f1 = AV_RL32(edata + 0); f2 = AV_RL32(edata + 4); |