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| author | Patrick McHardy <kaber@trash.net> | 2007-07-12 02:41:18 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-07-12 02:41:18 (GMT) |
| commit | 71bffe556c59a7865bf0b1ecd94530f1e296cdb0 (patch) | |
| tree | 936bca47c59179b81b2a0ddd7ef731a196aeb97d | |
| parent | 50b65cc6fa3a69bdfbc8b3342d8ca6ddbbf5ec88 (diff) | |
| download | linux-71bffe556c59a7865bf0b1ecd94530f1e296cdb0.tar.xz | |
[ETH]: Validate address in eth_mac_addr
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ethernet/eth.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c index 1387e54..12c7657 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; } |