[IPV6]: Fix slab corruption running ip6sic

From: Eric Sesterhenn <snakebyte@gmx.de>

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index 538499a8997506a2336ab10d0c7d457bcea5ae6c..5502cc948dfbb3ddb1a97bed03bd5d2320a8b891 100644 (file)
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -261,7 +261,7 @@ static int xfrm6_tunnel_rcv(struct sk_buff *skb)
        __be32 spi;
 
        spi = xfrm6_tunnel_spi_lookup((xfrm_address_t *)&iph->saddr);
-       return xfrm6_rcv_spi(skb, spi);
+       return xfrm6_rcv_spi(skb, spi) > 0 ? : 0;
 }
 
 static int xfrm6_tunnel_err(struct sk_buff *skb, struct inet6_skb_parm *opt,