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[PATCH] do_brk() bounds checking
| From: | Linux Kernel Mailing List <linux-kernel-AT-vger.kernel.org> | |
| To: | bk-commits-head-AT-vger.kernel.org | |
| Subject: | [PATCH] do_brk() bounds checking | |
| Date: | Thu, 25 Sep 2003 02:18:41 +0000 |
ChangeSet 1.1335, 2003/09/24 19:18:41-07:00, akpm@osdl.org [PATCH] do_brk() bounds checking check that the brk value lies in bounds. # This patch includes the following deltas: # ChangeSet 1.1334 -> 1.1335 # mm/mmap.c 1.90 -> 1.91 # mmap.c | 3 +++ 1 files changed, 3 insertions(+) diff -Nru a/mm/mmap.c b/mm/mmap.c --- a/mm/mmap.c Wed Sep 24 20:08:11 2003 +++ b/mm/mmap.c Wed Sep 24 20:08:11 2003 @@ -1269,6 +1269,9 @@ if (!len) return addr; + if ((addr + len) > TASK_SIZE || (addr + len) < addr) + return -EINVAL; + /* * mlock MCL_FUTURE? */ - To unsubscribe from this list: send the line "unsubscribe bk-commits-head" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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