diff options
Diffstat (limited to 'patches/glibc-2.18/0012-malloc-Check-for-integer-overflow-in-memalign.patch')
-rw-r--r-- | patches/glibc-2.18/0012-malloc-Check-for-integer-overflow-in-memalign.patch | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/patches/glibc-2.18/0012-malloc-Check-for-integer-overflow-in-memalign.patch b/patches/glibc-2.18/0012-malloc-Check-for-integer-overflow-in-memalign.patch deleted file mode 100644 index 8bc5718..0000000 --- a/patches/glibc-2.18/0012-malloc-Check-for-integer-overflow-in-memalign.patch +++ /dev/null @@ -1,37 +0,0 @@ -From: Will Newton <will.newton@linaro.org> -Date: Fri, 16 Aug 2013 12:54:29 +0100 -Subject: [PATCH] malloc: Check for integer overflow in memalign. - -A large bytes parameter to memalign could cause an integer overflow -and corrupt allocator internals. Check the overflow does not occur -before continuing with the allocation. - -ChangeLog: - -2013-09-11 Will Newton <will.newton@linaro.org> - - [BZ #15857] - * malloc/malloc.c (__libc_memalign): Check the value of bytes - does not overflow. ---- - malloc/malloc.c | 7 +++++++ - 1 file changed, 7 insertions(+) - -diff --git a/malloc/malloc.c b/malloc/malloc.c -index 31e2dfa..ebbe86d 100644 ---- a/malloc/malloc.c -+++ b/malloc/malloc.c -@@ -3015,6 +3015,13 @@ __libc_memalign(size_t alignment, size_t bytes) - /* Otherwise, ensure that it is at least a minimum chunk size */ - if (alignment < MINSIZE) alignment = MINSIZE; - -+ /* Check for overflow. */ -+ if (bytes > SIZE_MAX - alignment - MINSIZE) -+ { -+ __set_errno (ENOMEM); -+ return 0; -+ } -+ - arena_get(ar_ptr, bytes + alignment + MINSIZE); - if(!ar_ptr) - return 0; |