This is a note to let you know that I've just added the patch titled
rtnetlink: Mask the rta_type when range checking
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rtnetlink-mask-the-rta_type-when-range-checking.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2ebeed58f161c60327322261208d6095e76b3d24 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vyasevic@xxxxxxxxxx>
Date: Wed, 13 Mar 2013 04:18:58 +0000
Subject: rtnetlink: Mask the rta_type when range checking
From: Vlad Yasevich <vyasevic@xxxxxxxxxx>
[ Upstream commit a5b8db91442fce9c9713fcd656c3698f1adde1d6 ]
Range/validity checks on rta_type in rtnetlink_rcv_msg() do
not account for flags that may be set. This causes the function
to return -EINVAL when flags are set on the type (for example
NLA_F_NESTED).
Signed-off-by: Vlad Yasevich <vyasevic@xxxxxxxxxx>
Acked-by: Thomas Graf <tgraf@xxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/core/rtnetlink.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2050,7 +2050,7 @@ static int rtnetlink_rcv_msg(struct sk_b
struct rtattr *attr = (void *)nlh + NLMSG_ALIGN(min_len);
while (RTA_OK(attr, attrlen)) {
- unsigned flavor = attr->rta_type;
+ unsigned int flavor = attr->rta_type & NLA_TYPE_MASK;
if (flavor) {
if (flavor > rta_max[sz_idx])
return -EINVAL;
Patches currently in stable-queue which might be from vyasevic@xxxxxxxxxx are
queue-3.4/rtnetlink-mask-the-rta_type-when-range-checking.patch
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