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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-09-10 01:32:51 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-09-11 13:29:18 +0200 |
| commit | 32fa6ce64afdc8b3ac51f61cd1ec94d3c45d2020 (patch) | |
| tree | c8bc44b798d4bfa1ecfb46bc321798476b33638a | |
| parent | a295d1870a8cc98e397ec51458ef5ed514ee7ee2 (diff) | |
| download | ffmpeg-32fa6ce64afdc8b3ac51f61cd1ec94d3c45d2020.tar.gz | |
avcodec/hevcdsp_template: Fix undefined shift in put_hevc_pel_bi_w_pixels
Fixes: runtime error: left shift of negative value -95
Fixes: 3077/clusterfuzz-testcase-minimized-4684917524922368
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 c225da68cffbea11270a758ff42859194c980863)
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 25f1a81202..75763ce85e 100644 --- a/libavcodec/hevcdsp_template.c +++ b/libavcodec/hevcdsp_template.c @@ -593,7 +593,7 @@ static void FUNC(put_hevc_pel_bi_w_pixels)(uint8_t *_dst, ptrdiff_t _dststride, ox1 = ox1 * (1 << (BIT_DEPTH - 8)); for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { - dst[x] = av_clip_pixel(( (src[x] << (14 - BIT_DEPTH)) * wx1 + src2[x] * wx0 + ((ox0 + ox1 + 1) << log2Wd)) >> (log2Wd + 1)); + dst[x] = av_clip_pixel(( (src[x] << (14 - BIT_DEPTH)) * wx1 + src2[x] * wx0 + (ox0 + ox1 + 1) * (1 << log2Wd)) >> (log2Wd + 1)); } src += srcstride; dst += dststride; |