Commit 71bffe55 authored by Patrick McHardy's avatar Patrick McHardy Committed by David S. Miller
Browse files

[ETH]: Validate address in eth_mac_addr 



Signed-off-by: default avatarPatrick McHardy <kaber@trash.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 50b65cc6

net/ethernet/eth.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -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)

static int eth_mac_addr(struct net_device *dev, void *p)

{

{

	struct sockaddr *addr = p;

	struct sockaddr *addr = p;



	if (netif_running(dev))

	if (netif_running(dev))

		return -EBUSY;

		return -EBUSY;

	if (!is_valid_ether_addr(addr->sa_data))

		return -EADDRNOTAVAIL;

	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);

	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);

	return 0;

	return 0;

}

}