[3.13.y-ckt stable] Patch "rtnl: RTM_GETNETCONF: fix wrong return value" has been added to the 3.13.y-ckt tree

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    rtnl: RTM_GETNETCONF: fix wrong return value

to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.13.y-queue

This patch is scheduled to be released in version 3.13.11-ckt36.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.13.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

---8<------------------------------------------------------------

>From 0cc6873c394b098fced41c513ab08c282886994a Mon Sep 17 00:00:00 2001
From: Anton Protopopov <a.s.protopopov at gmail.com>
Date: Tue, 16 Feb 2016 21:43:16 -0500
Subject: rtnl: RTM_GETNETCONF: fix wrong return value

commit a97eb33ff225f34a8124774b3373fd244f0e83ce upstream.

An error response from a RTM_GETNETCONF request can return the positive
error value EINVAL in the struct nlmsgerr that can mislead userspace.

Signed-off-by: Anton Protopopov <a.s.protopopov at gmail.com>
Acked-by: Cong Wang <xiyou.wangcong at gmail.com>
Signed-off-by: David S. Miller <davem at davemloft.net>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 net/ipv4/devinet.c  | 2 +-
 net/ipv6/addrconf.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index f4b34d8..6844710 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1785,7 +1785,7 @@ static int inet_netconf_get_devconf(struct sk_buff *in_skb,
 	if (err < 0)
 		goto errout;

-	err = EINVAL;
+	err = -EINVAL;
 	if (!tb[NETCONFA_IFINDEX])
 		goto errout;

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index dd8b55b..c476142 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -531,7 +531,7 @@ static int inet6_netconf_get_devconf(struct sk_buff *in_skb,
 	if (err < 0)
 		goto errout;

-	err = EINVAL;
+	err = -EINVAL;
 	if (!tb[NETCONFA_IFINDEX])
 		goto errout;

--
2.7.0