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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-03-03 04:39:06 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-14 12:20:15 +0200 |
| commit | 87ae545648460b1e6dade7fd50f93e7250401add (patch) | |
| tree | d784c2bcd067fac086b96ed2fc2d3229e9242942 | |
| parent | 0cabddc13bca3bbf9848dea3b0ac3a9acc69dafd (diff) | |
| download | ffmpeg-87ae545648460b1e6dade7fd50f93e7250401add.tar.gz | |
avcodec/h264_mvpred: Fix multiple runtime error: left shift of negative value
Fixes: 710/clusterfuzz-testcase-5091051431788544
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ab998f4c7faf90d0e46b6ead38a1df1f6a31e2eb)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/h264_mvpred.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/h264_mvpred.h b/libavcodec/h264_mvpred.h index 24f250d794..339cf623d5 100644 --- a/libavcodec/h264_mvpred.h +++ b/libavcodec/h264_mvpred.h @@ -248,7 +248,7 @@ static av_always_inline void pred_8x16_motion(const H264Context *const h, if (IS_INTERLACED(type)) { \ refn >>= 1; \ AV_COPY32(mvbuf[idx], mvn); \ - mvbuf[idx][1] <<= 1; \ + mvbuf[idx][1] *= 2; \ mvn = mvbuf[idx]; \ } \ } \ |