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authorGary Zambrano <zambrano@broadcom.com>2006-03-28 14:57:38 -0800
committerJeff Garzik <jeff@garzik.org>2006-03-29 17:34:02 -0500
commit391fc09a143aac08d1a3dc37b60238612b504ad3 (patch)
treea4be557a7d86958eb360bf6ac1024b7ec88bb618 /drivers/net/b44.c
parentbc0e1fc970279c539db1e94dd473acbb193ee473 (diff)
[PATCH] b44: ensure valid mac addr
Added code to check for invalid MAC address from eeprom or user input. Signed-off-by: Gary Zambrano <zambrano@broadcom.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/b44.c')
-rw-r--r--drivers/net/b44.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index 2eab2a88c7bf..15032f2c7817 100644
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -1339,6 +1339,9 @@ static int b44_set_mac_addr(struct net_device *dev, void *p)
if (netif_running(dev))
return -EBUSY;
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EINVAL;
+
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
spin_lock_irq(&bp->lock);
@@ -1876,6 +1879,12 @@ static int __devinit b44_get_invariants(struct b44 *bp)
bp->dev->dev_addr[3] = eeprom[80];
bp->dev->dev_addr[4] = eeprom[83];
bp->dev->dev_addr[5] = eeprom[82];
+
+ if (!is_valid_ether_addr(&bp->dev->dev_addr[0])){
+ printk(KERN_ERR PFX "Invalid MAC address found in EEPROM\n");
+ return -EINVAL;
+ }
+
memcpy(bp->dev->perm_addr, bp->dev->dev_addr, bp->dev->addr_len);
bp->phy_addr = eeprom[90] & 0x1f;