In this case net_generic returns NULL. We must handle this gracefully.
Signed-off-by: Vladimir Davydov <[email protected]>
---
net/ipv6/sit.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 2a73b520d3bf..6b1ae3b06be9 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1441,6 +1441,9 @@ static int ipip6_newlink(struct net *src_net, struct
net_device *dev,
#endif
int err;
+ if (net_generic(net, sit_net_id) == NULL)
+ return -EACCES;
+
nt = netdev_priv(dev);
ipip6_netlink_parms(data, &nt->parms);
--
2.1.4
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