netfilter: invoke synchronize_rcu after set the _hook_ to NULL

[mirror_ubuntu-artful-kernel.git] / net / netfilter / nf_conntrack_netlink.c

diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 6806b5e73567bb0220b248682abed3e5e34f780e..908d858034e4f413b13d9965f41c94efd331489a 100644 (file)
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -3442,6 +3442,7 @@ static void __exit ctnetlink_exit(void)
 #ifdef CONFIG_NETFILTER_NETLINK_GLUE_CT
        RCU_INIT_POINTER(nfnl_ct_hook, NULL);
 #endif
+       synchronize_rcu();
 }
 
 module_init(ctnetlink_init);