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Commit ea857f28 authored by Dan Carpenter's avatar Dan Carpenter Committed by David S. Miller
Browse files

ipip: dereferencing an ERR_PTR in ip_tunnel_init_net() 



We need to move the derefernce after the IS_ERR() check.

Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Acked-by: default avatarNicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0dde8026

net/ipv4/ip_tunnel.c

+4 −4
Original line number Diff line number Diff line
@@ -854,14 +854,14 @@ int ip_tunnel_init_net(struct net *net, int ip_tnl_net_id, 


	rtnl_lock();

	itn->fb_tunnel_dev = __ip_tunnel_create(net, ops, &parms);

	/* FB netdevice is special: we have one, and only one per netns.

	 * Allowing to move it to another netns is clearly unsafe.

	 */

	itn->fb_tunnel_dev->features |= NETIF_F_NETNS_LOCAL;

	rtnl_unlock();



	if (IS_ERR(itn->fb_tunnel_dev))

		return PTR_ERR(itn->fb_tunnel_dev);

	/* FB netdevice is special: we have one, and only one per netns.

	 * Allowing to move it to another netns is clearly unsafe.

	 */

	itn->fb_tunnel_dev->features |= NETIF_F_NETNS_LOCAL;



	return 0;

}