ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Tue Feb 28 03:13:24 2017 +0100| [4bd3f1ce3e68a9348e97ec07a247048ea72ed808] | committer: Michael Niedermayer
avcodec/h264_direct: Fix runtime error: left shift of negative value -14 Fixes: 682/clusterfuzz-testcase-4799120021651456 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4bd3f1ce3e68a9348e97ec07a247048ea72ed808 --- libavcodec/h264_direct.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/h264_direct.c b/libavcodec/h264_direct.c index 107c905..cbb8466 100644 --- a/libavcodec/h264_direct.c +++ b/libavcodec/h264_direct.c @@ -614,7 +614,7 @@ single_col: { const int16_t *mv_col = l1mv[x8 * 3 + y8 * b4_stride]; - int my_col = (mv_col[1] << y_shift) / 2; + int my_col = (mv_col[1] * (1 << y_shift)) / 2; int mx = (scale * mv_col[0] + 128) >> 8; int my = (scale * my_col + 128) >> 8; fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8, _______________________________________________ ffmpeg-cvslog mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
