From: Daniel Lezcano <dlezcano@fr.ibm.com>
Date: Wed, 5 Mar 2008 18:46:31 +0000 (-0800)
Subject: [NETNS][IPV6] proc - protect snmp6 from non-init_net calls
X-Git-Tag: v2.6.26-rc1~1138^2~481
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=300bf591deca8d108799e70e9300dc31765643e3;p=linux-2.6

[NETNS][IPV6] proc - protect snmp6 from non-init_net calls

This patchset avoids creation of the /proc entry for snmp6 when
the call is made from a network namespace different from the init_net.

Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index 5ba7ae849d..2453f2229e 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -220,6 +220,9 @@ int snmp6_register_dev(struct inet6_dev *idev)
 	if (!idev || !idev->dev)
 		return -EINVAL;
 
+	if (idev->dev->nd_net != &init_net)
+		return 0;
+
 	if (!proc_net_devsnmp6)
 		return -ENOENT;