From 44da29d26bb8df3b0411ba902f2bc9b973ea38e4 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 19 Jun 2011 12:52:36 +0000 Subject: sgi-xp: fix a use after free Its illegal to dereference skb after dev_kfree_skb(skb) Signed-off-by: Eric Dumazet CC: Robin Holt Signed-off-by: David S. Miller --- drivers/misc/sgi-xp/xpnet.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/misc') diff --git a/drivers/misc/sgi-xp/xpnet.c b/drivers/misc/sgi-xp/xpnet.c index ee5109a3cd98..42f067347bc7 100644 --- a/drivers/misc/sgi-xp/xpnet.c +++ b/drivers/misc/sgi-xp/xpnet.c @@ -495,14 +495,14 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) } } + dev->stats.tx_packets++; + dev->stats.tx_bytes += skb->len; + if (atomic_dec_return(&queued_msg->use_count) == 0) { dev_kfree_skb(skb); kfree(queued_msg); } - dev->stats.tx_packets++; - dev->stats.tx_bytes += skb->len; - return NETDEV_TX_OK; } -- cgit v1.2.3