korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-02 00:24:12 +08:00
Code Issues Packages Projects Releases Wiki Activity

3c515: Write outside array bounds

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

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
roel kluin 2009-07-30 00:26:32 +00:00 committed by David S. Miller
parent 2a8aaacda5
commit 3d54015b75
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/3c515.c
View File

@ -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. */