drivers/net: ks8842 Fix crash on received packet when in PIO mode.

Dennis Aberilla · David S. Miller · commit b10cec8a4e81 · 2011-05-31T15:14:31.000-07:00
This patch fixes a driver crash during packet reception due to not enough
bytes allocated in the skb. Since the loop reads out 4 bytes at a time, we
need to allow for up to 3 bytes of slack space.

Signed-off-by: Dennis Aberilla &lt;denzzzhome@yahoo.com&gt;
Signed-off-by: David S. Miller &lt;davem@zippy.davemloft.net&gt;
diff --git a/drivers/net/ks8842.c b/drivers/net/ks8842.c
@@ -662,7 +662,7 @@ static void ks8842_rx_frame(struct net_device *netdev,
 
 	/* check the status */
 	if ((status & RXSR_VALID) && !(status & RXSR_ERROR)) {
-		struct sk_buff *skb = netdev_alloc_skb_ip_align(netdev, len);
+		struct sk_buff *skb = netdev_alloc_skb_ip_align(netdev, len + 3);
 
 		if (skb) {
 
