if (skb) { 
if (skb) 
ip_ct_gather_frags(struct sk_buff *skb, u_int32_t user){	skb_orphan(skb);	local_bh_disable(); 	skb = ip_defrag(skb, user);	local_bh_enable();	if (skb) {		ip_send_check(skb->nh.iph);		skb->nfcache |= NFC_ALTERED;	}	return skb;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/6869c4d8e066e21623c812c448a05f1ed931c9c6/ip_conntrack_core.c/buggy/net/ipv4/netfilter/ip_conntrack_core.c