1 files changed, 6 insertions, 1 deletions

diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 56aef027df31..f28f06c91ead 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -223,11 +223,16 @@ static bool arp_key_eq(const struct neighbour *neigh, const void *pkey)
 
 static int arp_constructor(struct neighbour *neigh)
 {
-        __be32 addr = *(__be32 *)neigh->primary_key;
+        __be32 addr;
         struct net_device *dev = neigh->dev;
         struct in_device *in_dev;
         struct neigh_parms *parms;
+        u32 inaddr_any = INADDR_ANY;
 
+        if (dev->flags & (IFF_LOOPBACK | IFF_POINTOPOINT))
+                memcpy(neigh->primary_key, &inaddr_any, arp_tbl.key_len);
+
+        addr = *(__be32 *)neigh->primary_key;
         rcu_read_lock();
         in_dev = __in_dev_get_rcu(dev);
         if (!in_dev) {