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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-08-10 23:09:45 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-08-15 01:26:21 +0200 |
| commit | cdea0206efeca83a0a9b57d0764b177b2e11ab7c (patch) | |
| tree | 99990dce6f0e0ecdacbf53244f30c62722d587ad | |
| parent | c4a88fb546b64179aff12c169239285932e570ac (diff) | |
| download | ffmpeg-cdea0206efeca83a0a9b57d0764b177b2e11ab7c.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>
| -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; |