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[ETH]: Validate address in eth_mac_addr

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Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2007-07-11 19:41:18 -07:00 committed by David S. Miller
parent 50b65cc6fa
commit 71bffe556c
1 changed files with 3 additions and 0 deletions
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3
net/ethernet/eth.c
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@ -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;
} }