commit 7aa27238417a34ec9be2d8eff05ceff319f2d39b
author stephen hemminger <stephen@networkplumber.org> Mon Jun 17 12:09:59 2013 -0700
committer David S. Miller <davem@davemloft.net> Mon Jun 17 15:55:47 2013 -0700
tree 27523a1ad89ecad7ac4e12627bd6cb43838144d6
parent 26a41ae604381c5cc0caf1c3261ca6b298b5fe69

vxlan: handle skb_clone failure

If skb_clone fails if out of memory then just skip the fanout.

Problem was introduced in 3.10 with:
  commit 6681712d67eef14c4ce793561c3231659153a320
  Author: David Stevens <dlstevens@us.ibm.com>
  Date:   Fri Mar 15 04:35:51 2013 +0000

    vxlan: generalize forwarding tables

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/vxlan.c

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 15a73ec..dda997a 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1161,9 +1161,11 @@
 		struct sk_buff *skb1;
 
 		skb1 = skb_clone(skb, GFP_ATOMIC);
-		rc1 = vxlan_xmit_one(skb1, dev, rdst, did_rsc);
-		if (rc == NETDEV_TX_OK)
-			rc = rc1;
+		if (skb1) {
+			rc1 = vxlan_xmit_one(skb1, dev, rdst, did_rsc);
+			if (rc == NETDEV_TX_OK)
+				rc = rc1;
+		}
 	}
 
 	rc1 = vxlan_xmit_one(skb, dev, rdst0, did_rsc);