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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-11-25 21:50:57 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-12-31 18:43:50 +0100 |
| commit | fa47f6412dbf93b4865adf8c66618906a3274330 (patch) | |
| tree | e1102b5013c6d9a6892f08ecb240773c7488f78a | |
| parent | 89fd76db71d9d4f87c51fee2a2edf99662444df7 (diff) | |
| download | ffmpeg-fa47f6412dbf93b4865adf8c66618906a3274330.tar.gz | |
avcodec/ffwavesynth: Fix undefined overflow in wavesynth_synth_sample()
Fixes: signed integer overflow: 2147464192 + 21176 cannot be represented in type 'int'
Fixes: 19042/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFWAVESYNTH_fuzzer-5719828090585088
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/ffwavesynth.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/ffwavesynth.c b/libavcodec/ffwavesynth.c index 349b45534d..b9c63abb8d 100644 --- a/libavcodec/ffwavesynth.c +++ b/libavcodec/ffwavesynth.c @@ -350,7 +350,8 @@ fail: static void wavesynth_synth_sample(struct wavesynth_context *ws, int64_t ts, int32_t *channels) { - int32_t amp, val, *cv; + int32_t amp, *cv; + unsigned val; struct ws_interval *in; int i, *last, pink; uint32_t c, all_ch = 0; |