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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-06 15:17:29 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-06 15:18:00 +0200 |
| commit | fc2c420b82939a8f30838a6aa08bfd936099d3ce (patch) | |
| tree | 1f333a35b2f625c68e265b6469015cb8866d5351 | |
| parent | 38e79d9d9c94d27fbfa6fc810267eeb785b50b24 (diff) | |
| download | ffmpeg-fc2c420b82939a8f30838a6aa08bfd936099d3ce.tar.gz | |
avcodec/mimic: Fix runtime error: left shift of negative value -1
Fixes: 1365/clusterfuzz-testcase-minimized-5624158450876416
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/mimic.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/mimic.c b/libavcodec/mimic.c index 0cc30ab0ed..61ce1ce584 100644 --- a/libavcodec/mimic.c +++ b/libavcodec/mimic.c @@ -262,7 +262,7 @@ static int vlc_decode_block(MimicContext *ctx, int num_coeffs, int qscale) coeff = vlcdec_lookup[num_bits][value]; if (pos < 3) - coeff <<= 4; + coeff *= 16; else /* TODO Use >> 10 instead of / 1001 */ coeff = (coeff * qscale) / 1001; |