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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-09-05 17:58:53 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-09 13:37:20 +0200 |
| commit | df6725090355db9505035d3ba248902077873565 (patch) | |
| tree | 165039c1ef54fe39be9112de738ad855cec0513f | |
| parent | de79966a44145408f781cd89e764472b6ba1e343 (diff) | |
| download | ffmpeg-df6725090355db9505035d3ba248902077873565.tar.gz | |
avcodec/ffwavesynth: Fix integer overflow in wavesynth_synth_sample / WS_SINE
Fixes: signed integer overflow: -1429092 * -32596 cannot be represented in type 'int'
Fixes: 24419/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFWAVESYNTH_fuzzer-5157849974702080
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 a0da95df77a528251a326fc8b7e2ff48c60e41d0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -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 8d3ac81aef..d92bb38c45 100644 --- a/libavcodec/ffwavesynth.c +++ b/libavcodec/ffwavesynth.c @@ -373,7 +373,7 @@ static void wavesynth_synth_sample(struct wavesynth_context *ws, int64_t ts, in->amp += in->damp; switch (in->type) { case WS_SINE: - val = amp * ws->sin[in->phi >> (64 - SIN_BITS)]; + val = amp * (unsigned)ws->sin[in->phi >> (64 - SIN_BITS)]; in->phi += in->dphi; in->dphi += in->ddphi; break; |