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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-06-05 19:33:56 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-06-05 23:16:54 +0200 |
| commit | dbe771e50de5db0d4d23e6df5e0469bb43611a3a (patch) | |
| tree | c69599c842154b641170cb5867e8a2663c116b3d | |
| parent | e447d3143faab23da9cbe3a7dbf4adec100f938a (diff) | |
| download | ffmpeg-dbe771e50de5db0d4d23e6df5e0469bb43611a3a.tar.gz | |
avcodec/cavs: Fix runtime error: signed integer overflow: -12648062 * 256 cannot be represented in type 'int'
Fixes: 2067/clusterfuzz-testcase-minimized-5578430902960128
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 1e6ee86d9254e8fd2158cc9a31d3be96b0809411)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/cavs.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/libavcodec/cavs.c b/libavcodec/cavs.c index 0bbf975a80..9a4a03ef30 100644 --- a/libavcodec/cavs.c +++ b/libavcodec/cavs.c @@ -538,8 +538,7 @@ void ff_cavs_inter(AVSContext *h, enum cavs_mb mb_type) static inline void scale_mv(AVSContext *h, int *d_x, int *d_y, cavs_vector *src, int distp) { - int den = h->scale_den[FFMAX(src->ref, 0)]; - + int64_t den = h->scale_den[FFMAX(src->ref, 0)]; *d_x = (src->x * distp * den + 256 + FF_SIGNBIT(src->x)) >> 9; *d_y = (src->y * distp * den + 256 + FF_SIGNBIT(src->y)) >> 9; } |