diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c
index 97c69df..a52cb3f 100644
--- a/net/ipv6/xfrm6_input.c
+++ b/net/ipv6/xfrm6_input.c
@@ -147,7 +147,7 @@ int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr,
 		goto drop;
 	}
 
-	skb->sp->xvec[skb->sp->len++] = x;
+	sp->xvec[sp->len++] = x;
 
 	spin_lock(&x->lock);