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Commit 707be1ff authored by YOSHIFUJI Hideaki / 吉藤英明's avatar YOSHIFUJI Hideaki / 吉藤英明 Committed by David S. Miller
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ipv6: Do not depend on rt->n in ip6_dst_lookup_tail(). 



Signed-off-by: default avatarYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9bb5a148

net/ipv6/ip6_output.c

+6 −2
Original line number Diff line number Diff line
@@ -913,8 +913,12 @@ static int ip6_dst_lookup_tail(struct sock *sk, 
	 * dst entry of the nexthop router

	 */

	rt = (struct rt6_info *) *dst;

	n = rt->n;

	if (n && !(n->nud_state & NUD_VALID)) {

	rcu_read_lock_bh();

	n = __ipv6_neigh_lookup_noref(rt->dst.dev, rt6_nexthop(rt, &fl6->daddr));

	err = n && !(n->nud_state & NUD_VALID) ? -EINVAL : 0;

	rcu_read_unlock_bh();



	if (err) {

		struct inet6_ifaddr *ifp;

		struct flowi6 fl_gw6;

		int redirect;