[PATCH 3.13.y-ckt 06/96] vxlan: fix a free after use
Kamal Mostafa
kamal at canonical.com
Mon Dec 15 19:25:26 UTC 2014
3.13.11-ckt13 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Li RongQing <roy.qing.li at gmail.com>
[ Upstream commit 7a9f526fc3ee49b6034af2f243676ee0a27dcaa8 ]
pskb_may_pull maybe change skb->data and make eth pointer oboslete,
so eth needs to reload
Fixes: 91269e390d062 ("vxlan: using pskb_may_pull as early as possible")
Cc: Eric Dumazet <edumazet at google.com>
Signed-off-by: Li RongQing <roy.qing.li at gmail.com>
Signed-off-by: David S. Miller <davem at davemloft.net>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
drivers/net/vxlan.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 0969176..1812b79 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1893,6 +1893,7 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
msg->icmph.icmp6_type == NDISC_NEIGHBOUR_SOLICITATION)
return neigh_reduce(dev, skb);
}
+ eth = eth_hdr(skb);
#endif
}
--
1.9.1
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