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avcodec/jpeg2000: Fix runtime error: signed integer overflow: 4185 + 2147483394 cannot be represented in type 'int'

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Fixes: 1870/clusterfuzz-testcase-minimized-4686788029317120

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-28 14:00:30 +02:00
parent 9c1812491f
commit 781f88bb26
1 changed files with 1 additions and 1 deletions
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libavcodec/jpeg2000.h
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@ -220,7 +220,7 @@ static inline int ff_jpeg2000_ceildivpow2(int a, int b)
static inline int ff_jpeg2000_ceildiv(int a, int b)
{
return (a + b - 1) / b;
return (a + (int64_t)b - 1) / b;
}
/* TIER-1 routines */