ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Sat Feb 25 21:07:24 2017 +0100| [aff8cf18cb0b1fa4f2e3d163c3da2f25aa6d1906] | committer: Michael Niedermayer
avcodec/mpeg12dec: Fix runtime error: left shift of negative value -2 671/clusterfuzz-testcase-4990381827555328 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Reviewed-by: Paul B Mahol <[email protected]> Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=aff8cf18cb0b1fa4f2e3d163c3da2f25aa6d1906 --- libavcodec/mpeg12dec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c index 5f86029..d44ddb2 100644 --- a/libavcodec/mpeg12dec.c +++ b/libavcodec/mpeg12dec.c @@ -948,8 +948,8 @@ static int mpeg_decode_mb(MpegEncContext *s, int16_t block[12][64]) dmy = get_dmv(s); - s->last_mv[i][0][1] = my << my_shift; - s->last_mv[i][1][1] = my << my_shift; + s->last_mv[i][0][1] = my * (1 << my_shift); + s->last_mv[i][1][1] = my * (1 << my_shift); s->mv[i][0][0] = mx; s->mv[i][0][1] = my; _______________________________________________ ffmpeg-cvslog mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
