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

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 <denzzzhome@yahoo.com>
Signed-off-by: David S. Miller <davem@zippy.davemloft.net>

diff --git a/drivers/net/ks8842.c b/drivers/net/ks8842.c
index f0d8346d0fa5d2d3dcf62c402a4d65d5dc9729d6..9bd0f551a383a363ead18f51e14e68fbc5440382 100644 (file)
--- 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) {