From 781f88bb26534ececc76eaa972f02536ba2f0f55 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 28 May 2017 14:00:30 +0200 Subject: [PATCH] avcodec/jpeg2000: Fix runtime error: signed integer overflow: 4185 + 2147483394 cannot be represented in type 'int' 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 --- libavcodec/jpeg2000.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/jpeg2000.h b/libavcodec/jpeg2000.h index ed3b421ad8..873e4505ec 100644 --- a/libavcodec/jpeg2000.h +++ b/libavcodec/jpeg2000.h @@ -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 */