diff options
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/arp.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c index c663fa5339ee..8e17f65f4002 100644 --- a/net/ipv4/arp.c +++ b/net/ipv4/arp.c @@ -368,6 +368,7 @@ static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb) if (!(neigh->nud_state&NUD_VALID)) printk(KERN_DEBUG "trying to ucast probe in NUD_INVALID\n"); dst_ha = neigh->ha; + read_lock_bh(&neigh->lock); } else if ((probes -= neigh->parms->app_probes) < 0) { #ifdef CONFIG_ARPD neigh_app_ns(neigh); @@ -377,6 +378,8 @@ static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb) arp_send(ARPOP_REQUEST, ETH_P_ARP, target, dev, saddr, dst_ha, dev->dev_addr, NULL); + if (dst_ha) + read_unlock_bh(&neigh->lock); } static int arp_ignore(struct in_device *in_dev, __be32 sip, __be32 tip) |