--- linux-2.5.47/net/ipv4/netfilter/ipt_TCPMSS.c.orig	Mon Nov 11 03:23:43 2002
+++ linux-2.5.47/net/ipv4/netfilter/ipt_TCPMSS.c	Mon Nov 11 03:23:51 2002
@@ -92,7 +92,7 @@
 			return NF_DROP; /* or IPT_CONTINUE ?? */
 		}
 
-		newmss = dst_pmtu((*pskb)->dst->pmtu) - sizeof(struct iphdr) - sizeof(struct tcphdr);
+		newmss = dst_pmtu((*pskb)->dst) - sizeof(struct iphdr) - sizeof(struct tcphdr);
 	} else
 		newmss = tcpmssinfo->mss;