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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-10-02 04:18:21 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-10-26 17:34:42 +0200 |
| commit | 520daf8c0ec493d30a8737e667b2602a6aa9a802 (patch) | |
| tree | 87c945e126564334de4120556416f167f696e699 | |
| parent | c54317a17e576700e0d936f0bf6b89dba77b4c73 (diff) | |
| download | ffmpeg-520daf8c0ec493d30a8737e667b2602a6aa9a802.tar.gz | |
avcodec/hevcdsp_template: Fix undefined shift
Fixes: runtime error: left shift of negative value -255
Fixes: 3373/clusterfuzz-testcase-minimized-5604083912146944
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 fbdab6eca7874fbeba6aa79c269f345e4d43f5d4)
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 75763ce85e..e09c661759 100644 --- a/libavcodec/hevcdsp_template.c +++ b/libavcodec/hevcdsp_template.c @@ -1486,7 +1486,7 @@ static void FUNC(put_hevc_epel_bi_w_hv)(uint8_t *_dst, ptrdiff_t _dststride, uin for (y = 0; y < height; y++) { for (x = 0; x < width; x++) dst[x] = av_clip_pixel(((EPEL_FILTER(tmp, MAX_PB_SIZE) >> 6) * wx1 + src2[x] * wx0 + - ((ox0 + ox1 + 1) << log2Wd)) >> (log2Wd + 1)); + ((ox0 + ox1 + 1) * (1 << log2Wd))) >> (log2Wd + 1)); tmp += MAX_PB_SIZE; dst += dststride; src2 += MAX_PB_SIZE; |