Commit 3d54015b authored by roel kluin's avatar roel kluin Committed by David S. Miller
Browse files

3c515: Write outside array bounds 



if dev_alloc_skb() fails on the first iteration, a write to
cp->rx_ring[-1] occurs.

Signed-off-by: default avatarRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2a8aaacd

drivers/net/3c515.c

+3 −1
Original line number Diff line number Diff line
@@ -832,7 +832,9 @@ static int corkscrew_open(struct net_device *dev) 
			skb_reserve(skb, 2);	/* Align IP on 16 byte boundaries */

			vp->rx_ring[i].addr = isa_virt_to_bus(skb->data);

		}

		vp->rx_ring[i - 1].next = isa_virt_to_bus(&vp->rx_ring[0]);	/* Wrap the ring. */

		if (i != 0)

			vp->rx_ring[i - 1].next =

				isa_virt_to_bus(&vp->rx_ring[0]);	/* Wrap the ring. */

		outl(isa_virt_to_bus(&vp->rx_ring[0]), ioaddr + UpListPtr);

	}

	if (vp->full_bus_master_tx) {	/* Boomerang bus master Tx. */