---

yaml
---
r: 195148
b: refs/heads/master
c: ab6e3fe
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4a94445c9a5cf5461fb41d80040033b9a8e2a85a
+refs/heads/master: ab6e3feba1f1bc3b9418b854da6f481408d243de

trunk/net/ipv4/ip_output.c

@@ -318,10 +318,12 @@ int ip_queue_xmit(struct sk_buff *skb)
 	struct ip_options *opt = inet->opt;
 	struct rtable *rt;
 	struct iphdr *iph;
+	int res;
 
 	/* Skip all of this if the packet is already routed,
 	 * f.e. by something like SCTP.
 	 */
+	rcu_read_lock();
 	rt = skb_rtable(skb);
 	if (rt != NULL)
 		goto packet_routed;
@@ -359,7 +361,7 @@ int ip_queue_xmit(struct sk_buff *skb)
 		}
 		sk_setup_caps(sk, &rt->u.dst);
 	}
-	skb_dst_set(skb, dst_clone(&rt->u.dst));
+	skb_dst_set_noref(skb, &rt->u.dst);
 
 packet_routed:
 	if (opt && opt->is_strictroute && rt->rt_dst != rt->rt_gateway)
@@ -391,9 +393,12 @@ int ip_queue_xmit(struct sk_buff *skb)
 	skb->priority = sk->sk_priority;
 	skb->mark = sk->sk_mark;
 
-	return ip_local_out(skb);
+	res = ip_local_out(skb);
+	rcu_read_unlock();
+	return res;
 
 no_route:
+	rcu_read_unlock();
 	IP_INC_STATS(sock_net(sk), IPSTATS_MIB_OUTNOROUTES);
 	kfree_skb(skb);
 	return -EHOSTUNREACH;