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| author | Amaury Forgeot d'Arc <amauryfa@gmail.com> | 2008-06-18 00:47:36 +0000 |
|---|---|---|
| committer | Amaury Forgeot d'Arc <amauryfa@gmail.com> | 2008-06-18 00:47:36 +0000 |
| commit | 9c74b14fe9b6dddc9d41dd37f431f174350004d4 (patch) | |
| tree | 3d30d794259f55f5021f5e8036447523d0e1eea3 /Objects/obmalloc.c | |
| parent | 036aa5433e963f6576c5dfa02ace4ca0e2c642a2 (diff) | |
| download | cpython-git-9c74b14fe9b6dddc9d41dd37f431f174350004d4.tar.gz | |
Merged revisions 64114 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r64114 | gregory.p.smith | 2008-06-11 09:41:16 +0200 (mer., 11 juin 2008) | 6 lines
Merge in release25-maint r60793:
Added checks for integer overflows, contributed by Google. Some are
only available if asserts are left in the code, in cases where they
can't be triggered from Python code.
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Diffstat (limited to 'Objects/obmalloc.c')
| -rw-r--r-- | Objects/obmalloc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Objects/obmalloc.c b/Objects/obmalloc.c index 2f2b35e752..efbd566469 100644 --- a/Objects/obmalloc.c +++ b/Objects/obmalloc.c @@ -526,9 +526,9 @@ new_arena(void) numarenas = maxarenas ? maxarenas << 1 : INITIAL_ARENA_OBJECTS; if (numarenas <= maxarenas) return NULL; /* overflow */ - nbytes = numarenas * sizeof(*arenas); - if (nbytes / sizeof(*arenas) != numarenas) + if (numarenas > PY_SIZE_MAX / sizeof(*arenas)) return NULL; /* overflow */ + nbytes = numarenas * sizeof(*arenas); arenaobj = (struct arena_object *)realloc(arenas, nbytes); if (arenaobj == NULL) return NULL; |