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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-08-10 23:09:45 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-11-15 12:25:45 +0100 |
| commit | 50b07e145bf2a37528cee4e2a5916d3978243705 (patch) | |
| tree | d948f5c2c4a6b844e23a1b56b96decf17cc8d9f4 /libavcodec | |
| parent | a2d0ed8718ec807fd5eeaf5dd0a715defa791b5a (diff) | |
| download | ffmpeg-50b07e145bf2a37528cee4e2a5916d3978243705.tar.gz | |
avcodec/ffwavesynth: Fixes invalid shift with pink noise seeking
Fixes: left shift of negative value -961533698048
Fixes: 16242/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFWAVESYNTH_fuzzer-5738550670131200
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 cdea0206efeca83a0a9b57d0764b177b2e11ab7c)
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 e6d2606c2f..cfd0951d8f 100644 --- a/libavcodec/ffwavesynth.c +++ b/libavcodec/ffwavesynth.c @@ -220,7 +220,7 @@ static void wavesynth_seek(struct wavesynth_context *ws, int64_t ts) int64_t pink_ts_cur = (ws->cur_ts + PINK_UNIT - 1) & ~(PINK_UNIT - 1); int64_t pink_ts_next = ts & ~(PINK_UNIT - 1); int pos = ts & (PINK_UNIT - 1); - lcg_seek(&ws->pink_state, (pink_ts_next - pink_ts_cur) << 1); + lcg_seek(&ws->pink_state, (pink_ts_next - pink_ts_cur) * 2); if (pos) { pink_fill(ws); ws->pink_pos = pos; |