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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-12-22 03:12:03 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-12-30 21:11:32 +0100 |
| commit | b66e3e321f64a659a534e520c5fad085e8c293f5 (patch) | |
| tree | d31fcea63ae424e7b6efdbc7c1694a1cc1a5016e | |
| parent | 1d9830cba30dfa1ff44f5227763e9d5257841854 (diff) | |
| download | ffmpeg-b66e3e321f64a659a534e520c5fad085e8c293f5.tar.gz | |
avcodec/hevcdsp_template.c: Fix undefined shift in FUNC(dequant)
Fixes: runtime error: left shift of negative value -180
Fixes: 4626/clusterfuzz-testcase-minimized-5647837887987712
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0c9ab5ef9c1ee852c80c859c9e07efe8730b57ed)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/hevcdsp_template.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/hevcdsp_template.c b/libavcodec/hevcdsp_template.c index 4017af8eb0..903aa3fe95 100644 --- a/libavcodec/hevcdsp_template.c +++ b/libavcodec/hevcdsp_template.c @@ -121,7 +121,7 @@ static void FUNC(dequant)(int16_t *coeffs, int16_t log2_size) } else { for (y = 0; y < size; y++) { for (x = 0; x < size; x++) { - *coeffs = *coeffs << -shift; + *coeffs = *(uint16_t*)coeffs << -shift; coeffs++; } } |