diff --git a/[refs] b/[refs]
index a828857583b1..2ad634d94f2a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 50b65cc6fa3a69bdfbc8b3342d8ca6ddbbf5ec88
+refs/heads/master: 71bffe556c59a7865bf0b1ecd94530f1e296cdb0
diff --git a/trunk/net/ethernet/eth.c b/trunk/net/ethernet/eth.c
index 1387e5411f77..12c765715acf 100644
--- a/trunk/net/ethernet/eth.c
+++ b/trunk/net/ethernet/eth.c
@@ -266,8 +266,11 @@ void eth_header_cache_update(struct hh_cache *hh, struct net_device *dev,
 static int eth_mac_addr(struct net_device *dev, void *p)
 {
 	struct sockaddr *addr = p;
+
 	if (netif_running(dev))
 		return -EBUSY;
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
 	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
 	return 0;
 }