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| author | Jonas Gorski <jogo@openwrt.org> | 2013-05-12 10:55:58 +0000 |
|---|---|---|
| committer | Jonas Gorski <jogo@openwrt.org> | 2013-05-12 10:55:58 +0000 |
| commit | 2165d2b9508f61d0879c47f09f3fd261882fb8da (patch) | |
| tree | 37b7c317336ba24047ff3cfd73d13cb023005324 | |
| parent | a19669f8f5f0b4a4f397eb36880e15f3818f9f39 (diff) | |
| download | upstream-2165d2b9508f61d0879c47f09f3fd261882fb8da.tar.gz upstream-2165d2b9508f61d0879c47f09f3fd261882fb8da.tar.bz2 upstream-2165d2b9508f61d0879c47f09f3fd261882fb8da.zip | |
AA: kernel: fix CVE-2013-1763
Backport of r36607.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@36608 3c298f89-4303-0410-b956-a3cf2f4a3e73
| -rw-r--r-- | target/linux/generic/patches-3.3/090-CVE-2013-1763.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.3/090-CVE-2013-1763.patch b/target/linux/generic/patches-3.3/090-CVE-2013-1763.patch new file mode 100644 index 0000000000..6c0c2236dd --- /dev/null +++ b/target/linux/generic/patches-3.3/090-CVE-2013-1763.patch @@ -0,0 +1,27 @@ +From 6e601a53566d84e1ffd25e7b6fe0b6894ffd79c0 Mon Sep 17 00:00:00 2001 +From: Mathias Krause <minipli@googlemail.com> +Date: Sat, 23 Feb 2013 01:13:47 +0000 +Subject: sock_diag: Fix out-of-bounds access to sock_diag_handlers[] + +Userland can send a netlink message requesting SOCK_DIAG_BY_FAMILY +with a family greater or equal then AF_MAX -- the array size of +sock_diag_handlers[]. The current code does not test for this +condition therefore is vulnerable to an out-of-bound access opening +doors for a privilege escalation. + +Signed-off-by: Mathias Krause <minipli@googlemail.com> +Acked-by: Eric Dumazet <edumazet@google.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- +--- a/net/core/sock_diag.c ++++ b/net/core/sock_diag.c +@@ -126,6 +126,9 @@ static int __sock_diag_rcv_msg(struct sk + if (nlmsg_len(nlh) < sizeof(*req)) + return -EINVAL; + ++ if (req->sdiag_family >= AF_MAX) ++ return -EINVAL; ++ + hndl = sock_diag_lock_handler(req->sdiag_family); + if (hndl == NULL) + err = -ENOENT; |