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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-04-27 15:10:25 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-16 16:00:22 +0200 |
| commit | ac74ac9e1d2f23e3e41a53ea5abe5520013c86cb (patch) | |
| tree | 1c1b67d44f814079cadf1a5056e903cae47e247b | |
| parent | a6fb07d5ba3a0a1561c7e354ce9b8fbf6b404c04 (diff) | |
| download | ffmpeg-ac74ac9e1d2f23e3e41a53ea5abe5520013c86cb.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 a073c0967e..d7ef0067b5 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)--; |