Apply by doing:
	cd /usr/src
	patch -p0 < 005_pcb.patch

Then build and install a new kernel.


Index: sys/netinet/in_pcb.c
===================================================================
RCS file: /cvs/src/sys/netinet/in_pcb.c,v
retrieving revision 1.92
retrieving revision 1.92.2.1
diff -u -p -r1.92 -r1.92.2.1
--- sys/netinet/in_pcb.c	30 Dec 2007 21:13:27 -0000	1.92
+++ sys/netinet/in_pcb.c	30 Jul 2008 05:36:15 -0000	1.92.2.1
@@ -487,9 +487,10 @@ in_pcbdetach(v)
 	if (inp->inp_route.ro_rt)
 		rtfree(inp->inp_route.ro_rt);
 #ifdef INET6
-	if (inp->inp_flags & INP_IPV6)
+	if (inp->inp_flags & INP_IPV6) {
+		ip6_freepcbopts(inp->inp_outputopts6);
 		ip6_freemoptions(inp->inp_moptions6);
-	else
+	} else
 #endif
 		ip_freemoptions(inp->inp_moptions);
 #ifdef IPSEC