| Message ID | 1362430176-23052-1-git-send-email-luis.henriques@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c index a650694..9f9aa32 100644 --- a/kernel/sysctl_binary.c +++ b/kernel/sysctl_binary.c @@ -1194,9 +1194,10 @@ static ssize_t bin_dn_node_address(struct file *file, /* Convert the decnet address to binary */ result = -EIO; - nodep = strchr(buf, '.') + 1; + nodep = strchr(buf, '.'); if (!nodep) goto out; + ++nodep; area = simple_strtoul(buf, NULL, 10); node = simple_strtoul(nodep, NULL, 10);
This is a note to let you know that I have just added a patch titled sysctl: fix null checking in bin_dn_node_address() to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Luis ------ From 4493b61e596a74550ac99389015d3c41c32c297c Mon Sep 17 00:00:00 2001 From: Xi Wang <xi.wang@gmail.com> Date: Wed, 27 Feb 2013 17:05:21 -0800 Subject: [PATCH] sysctl: fix null checking in bin_dn_node_address() commit df1778be1a33edffa51d094eeda87c858ded6560 upstream. The null check of `strchr() + 1' is broken, which is always non-null, leading to OOB read. Instead, check the result of strchr(). Signed-off-by: Xi Wang <xi.wang@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- kernel/sysctl_binary.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) -- 1.8.1.2