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| author | Michael Niedermayer <michaelni@gmx.at> | 2014-11-10 19:44:20 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-11-10 19:45:36 +0100 |
| commit | 7656c4c6e66f8a787d384f027ad824cc1677fda1 (patch) | |
| tree | 160190f214d5d60a1daa27dda10bd225a0fc98db | |
| parent | e981de81fea7b2c07ae178b917305184f6596430 (diff) | |
| download | ffmpeg-7656c4c6e66f8a787d384f027ad824cc1677fda1.tar.gz | |
avcodec/utvideodec: fix assumtation that slice_height >= 1
Fixes out of array read
Fixes: asan_heap-oob_2573085_3783_utvideo_rgba_median.avi
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/utvideodec.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/utvideodec.c b/libavcodec/utvideodec.c index afd56ea1bd..05c943f808 100644 --- a/libavcodec/utvideodec.c +++ b/libavcodec/utvideodec.c @@ -224,7 +224,7 @@ static void restore_median(uint8_t *src, int step, int stride, A = bsrc[i]; } bsrc += stride; - if (slice_height == 1) + if (slice_height <= 1) continue; // second line - first element has top prediction, the rest uses median C = bsrc[-stride]; @@ -284,7 +284,7 @@ static void restore_median_il(uint8_t *src, int step, int stride, A = bsrc[stride + i]; } bsrc += stride2; - if (slice_height == 1) + if (slice_height <= 1) continue; // second line - first element has top prediction, the rest uses median C = bsrc[-stride2]; |