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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-11-17 22:01:29 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-11-21 03:27:45 +0100 |
| commit | 8b8016e0073b1c7fc14d05e3cf929d8f114207bb (patch) | |
| tree | 2e7cd7bfd75d13170ef88685714fecd704c4d1da | |
| parent | 5fae049904c51fe211b5aefc8651b3a2ca8c2bce (diff) | |
| download | ffmpeg-8b8016e0073b1c7fc14d05e3cf929d8f114207bb.tar.gz | |
avcodec/hevcdsp_template: Fix invalid shift in put_hevc_epel_bi_w_v()
Fixes: runtime error: left shift of negative value -255
Fixes: 4037/clusterfuzz-testcase-minimized-5290998163832832
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 7d88586e4728e97349f98e07ff782bb168ab96c3)
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 b7aa22e79a..8672adbd49 100644 --- a/libavcodec/hevcdsp_template.c +++ b/libavcodec/hevcdsp_template.c @@ -1457,7 +1457,7 @@ static void FUNC(put_hevc_epel_bi_w_v)(uint8_t *_dst, ptrdiff_t _dststride, uint for (y = 0; y < height; y++) { for (x = 0; x < width; x++) dst[x] = av_clip_pixel(((EPEL_FILTER(src, srcstride) >> (BIT_DEPTH - 8)) * wx1 + src2[x] * wx0 + - ((ox0 + ox1 + 1) << log2Wd)) >> (log2Wd + 1)); + ((ox0 + ox1 + 1) * (1 << log2Wd))) >> (log2Wd + 1)); src += srcstride; dst += dststride; src2 += MAX_PB_SIZE; |