Set l3num to 0x1F (32) in expectation masks since the size of the layer 3 
procotol handler array is AF_MAX. This fixes a panic at expectation dumping
and event notification.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

Index: netfilter-2.6.14.git/net/netfilter/nf_conntrack_ftp.c
===================================================================
--- netfilter-2.6.14.git.orig/net/netfilter/nf_conntrack_ftp.c	2006-01-08 21:24:44.000000000 +0100
+++ netfilter-2.6.14.git/net/netfilter/nf_conntrack_ftp.c	2006-01-08 21:33:52.000000000 +0100
@@ -574,7 +574,7 @@ static int help(struct sk_buff **pskb,
 	exp->tuple.dst.protonum = IPPROTO_TCP;
 
 	exp->mask = (struct nf_conntrack_tuple)
-		    { .src = { .l3num = 0xFFFF,
+		    { .src = { .l3num = 0x001F,
 			       .u = { .tcp = { 0 }},
 			     },
 		      .dst = { .protonum = 0xFF,