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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-04-27 15:10:25 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-14 12:20:15 +0200 |
| commit | b0d6bff2f29d9eebe0cbc0de04d8554980f20fea (patch) | |
| tree | fc18b27ec2968bdc611112ed00cde5a0542003df | |
| parent | 231e242ed2e3d17381b7c9437281e201864c665f (diff) | |
| download | ffmpeg-b0d6bff2f29d9eebe0cbc0de04d8554980f20fea.tar.gz | |
avcodec/mjpegdec: Fix runtime error: signed integer overflow: -24543 * 2031616 cannot be represented in type 'int'
Fixes: 943/clusterfuzz-testcase-5114865297391616
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 a78ae465fda902565ed041d93403e04490b4be0d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/mjpegdec.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c index 090f269dc3..f2feac0207 100644 --- a/libavcodec/mjpegdec.c +++ b/libavcodec/mjpegdec.c @@ -753,7 +753,8 @@ static int decode_block_progressive(MJpegDecodeContext *s, int16_t *block, int16_t *quant_matrix, int ss, int se, int Al, int *EOBRUN) { - int code, i, j, level, val, run; + int code, i, j, val, run; + unsigned level; if (*EOBRUN) { (*EOBRUN)--; |