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| author | Even Rouault <even.rouault@spatialys.com> | 2017-07-28 22:15:47 +0200 |
|---|---|---|
| committer | Even Rouault <even.rouault@spatialys.com> | 2017-07-28 22:15:47 +0200 |
| commit | d6654d906c1ae66590b6d600458a91f1ee923de5 (patch) | |
| tree | 531c66c4aa765a27a3cdf4af1e09fe9ec1ea4b00 /src/lib | |
| parent | 361c4506fdfb9b6f0e41d86d5d0ea1efb5704ecf (diff) | |
opj_int_ceildiv(): fix int32 overflow. Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2494. Credit to OSS Fuzz
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/openjp2/opj_intmath.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/lib/openjp2/opj_intmath.h b/src/lib/openjp2/opj_intmath.h index 03a446f1..64c87ed9 100644 --- a/src/lib/openjp2/opj_intmath.h +++ b/src/lib/openjp2/opj_intmath.h @@ -129,7 +129,7 @@ Divide an integer and round upwards static INLINE OPJ_INT32 opj_int_ceildiv(OPJ_INT32 a, OPJ_INT32 b) { assert(b); - return (a + b - 1) / b; + return (OPJ_INT32)(((OPJ_INT64)a + b - 1) / b); } /** |