ipv6: add complete rcu protection around np->opt

[pandora-kernel.git] / net / ipv6 / syncookies.c

diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 5a0d664..cfc6284 100644 (file)
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -238,7 +238,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
                memset(&fl6, 0, sizeof(fl6));
                fl6.flowi6_proto = IPPROTO_TCP;
                ipv6_addr_copy(&fl6.daddr, &ireq6->rmt_addr);
-               final_p = fl6_update_dst(&fl6, np->opt, &final);
+               final_p = fl6_update_dst(&fl6, rcu_dereference(np->opt), &final);
                ipv6_addr_copy(&fl6.saddr, &ireq6->loc_addr);
                fl6.flowi6_oif = sk->sk_bound_dev_if;
                fl6.flowi6_mark = sk->sk_mark;