Index: linux-2.6/net/core/filter.c
===================================================================
--- linux-2.6.orig/net/core/filter.c
+++ linux-2.6/net/core/filter.c
@@ -81,6 +81,9 @@ int sk_filter(struct sock *sk, struct sk
 	int err;
 	struct sk_filter *filter;
 
+	if (skb_emergency(skb) && !sk_has_memalloc(sk))
+		return -ENOMEM;
+
 	err = security_sock_rcv_skb(sk, skb);
 	if (err)
 		return err;