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author | Michael Niedermayer <michael@niedermayer.cc> | 2017-03-01 16:32:09 +0100 |
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committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-03-03 01:03:29 +0100 |
commit | 4b72d5cd6f9341dcafdbc1b9030166aa987b8304 (patch) | |
tree | 76508a4ca8f445f6383c6fe518373836df757889 | |
parent | 46082c2b3f2158ca3a69b7cd2b105cc763e9c3e7 (diff) | |
download | ffmpeg-4b72d5cd6f9341dcafdbc1b9030166aa987b8304.tar.gz |
avcodec/mjpegdec: Fix runtime error: left shift of negative value -511
Fixes: 693/clusterfuzz-testcase-6109776066904064
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
-rw-r--r-- | libavcodec/mjpegdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c index 69469c5229..2b5adfc61b 100644 --- a/libavcodec/mjpegdec.c +++ b/libavcodec/mjpegdec.c @@ -1157,7 +1157,7 @@ static int ljpeg_decode_yuv_scan(MJpegDecodeContext *s, int predictor, if (s->interlaced && s->bottom_field) ptr16 += linesize >> 1; pred &= mask; - *ptr16= pred + (dc << point_transform); + *ptr16= pred + ((unsigned)dc << point_transform); } if (++x == h) { x = 0; |