[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 5ba7ae8..2453f22 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -220,6 +220,9 @@
if (!idev || !idev->dev)
return -EINVAL;
+ if (idev->dev->nd_net != &init_net)
+ return 0;
+
if (!proc_net_devsnmp6)
return -ENOENT;