From: Patrick McHardy <kaber@trash.net>
Date: Thu, 12 Jul 2007 02:41:18 +0000 (-0700)
Subject: [ETH]: Validate address in eth_mac_addr
X-Git-Tag: v2.6.23-rc1~1109^2~10
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=71bffe556c59a7865bf0b1ecd94530f1e296cdb0;p=karo-tx-linux.git

[ETH]: Validate address in eth_mac_addr

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
index 1387e5411f77..12c765715acf 100644
--- a/net/ethernet/eth.c
+++ b/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;
 }