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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-03-01 16:32:09 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-08-23 13:15:16 +0200 |
| commit | be4f53c1ae28c486f20aa75fd5ee7bb5385dbe80 (patch) | |
| tree | 6515cab83b987baf6f8042fa140789d636f9eda7 | |
| parent | 0c9dd045f47a6ba967a0d84d0308c72aaa76a38c (diff) | |
| download | ffmpeg-be4f53c1ae28c486f20aa75fd5ee7bb5385dbe80.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>
(cherry picked from commit 4b72d5cd6f9341dcafdbc1b9030166aa987b8304)
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 43512bc2ba..ff54eb9d59 100644 --- a/libavcodec/mjpegdec.c +++ b/libavcodec/mjpegdec.c @@ -1102,7 +1102,7 @@ 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; |