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Diffstat (limited to 'net/ipv6/ip6_output.c')
-rw-r--r--net/ipv6/ip6_output.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 32e5339db0c..4c882cf4e8a 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -135,10 +135,15 @@ static int ip6_finish_output2(struct sk_buff *skb)
skb->len);
}
+ rcu_read_lock();
neigh = dst_get_neighbour(dst);
- if (neigh)
- return neigh_output(neigh, skb);
+ if (neigh) {
+ int res = neigh_output(neigh, skb);
+ rcu_read_unlock();
+ return res;
+ }
+ rcu_read_unlock();
IP6_INC_STATS_BH(dev_net(dst->dev),
ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES);
kfree_skb(skb);
@@ -975,12 +980,14 @@ static int ip6_dst_lookup_tail(struct sock *sk,
* dst entry and replace it instead with the
* dst entry of the nexthop router
*/
+ rcu_read_lock();
n = dst_get_neighbour(*dst);
if (n && !(n->nud_state & NUD_VALID)) {
struct inet6_ifaddr *ifp;
struct flowi6 fl_gw6;
int redirect;
+ rcu_read_unlock();
ifp = ipv6_get_ifaddr(net, &fl6->saddr,
(*dst)->dev, 1);
@@ -1000,6 +1007,8 @@ static int ip6_dst_lookup_tail(struct sock *sk,
if ((err = (*dst)->error))
goto out_err_release;
}
+ } else {
+ rcu_read_unlock();
}
#endif