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Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/ip6_output.c2
-rw-r--r--net/ipv6/ndisc.c12
2 files changed, 11 insertions, 3 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index d97e07183ce..604809b89b6 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -486,7 +486,7 @@ int ip6_forward(struct sk_buff *skb)
and by source (inside ndisc_send_redirect)
*/
if (inet_peer_xrlim_allow(rt->rt6i_peer, 1*HZ))
- ndisc_send_redirect(skb, n, target);
+ ndisc_send_redirect(skb, target);
} else {
int addrtype = ipv6_addr_type(&hdr->saddr);
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index c574ebce3fb..8d817018c18 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1512,8 +1512,7 @@ static void ndisc_redirect_rcv(struct sk_buff *skb)
}
}
-void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
- const struct in6_addr *target)
+void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target)
{
struct net_device *dev = skb->dev;
struct net *net = dev_net(dev);
@@ -1571,6 +1570,13 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
goto release;
if (dev->addr_len) {
+ struct neighbour *neigh = dst_neigh_lookup(skb_dst(skb), target);
+ if (!neigh) {
+ ND_PRINTK2(KERN_WARNING
+ "ICMPv6 Redirect: no neigh for target address\n");
+ goto release;
+ }
+
read_lock_bh(&neigh->lock);
if (neigh->nud_state & NUD_VALID) {
memcpy(ha_buf, neigh->ha, dev->addr_len);
@@ -1579,6 +1585,8 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
len += ndisc_opt_addr_space(dev);
} else
read_unlock_bh(&neigh->lock);
+
+ neigh_release(neigh);
}
rd_len = min_t(unsigned int,