Index: netinet/raw_ip.c
===================================================================
--- netinet/raw_ip.c	(revision 224592)
+++ netinet/raw_ip.c	(working copy)
@@ -279,6 +279,13 @@
 	last = NULL;
 
 	ifp = m->m_pkthdr.rcvif;
+	/*
+	 * Add back the IP header length which was
+	 * removed by ip_input().  Raw sockets do
+	 * not modify the packet except for some
+	 * byte order swaps.
+	 */
+	ip->ip_len += off;
 
 	hash = INP_PCBHASH_RAW(proto, ip->ip_src.s_addr,
 	    ip->ip_dst.s_addr, V_ripcbinfo.ipi_hashmask);