Index: head/sys/netinet/in_pcb.h
===================================================================
--- head/sys/netinet/in_pcb.h
+++ head/sys/netinet/in_pcb.h
@@ -688,8 +688,6 @@
 	(((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask))
 #define INP_PCBPORTHASH(lport, mask) \
 	(ntohs((lport)) & (mask))
-#define	INP_PCBLBGROUP_PORTHASH(lport, mask) \
-	(ntohs((lport)) & (mask))
 #define	INP_PCBLBGROUP_PKTHASH(faddr, lport, fport) \
 	((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport)))
 #define	INP6_PCBHASHKEY(faddr)	((faddr)->s6_addr32[3])
Index: head/sys/netinet/in_pcb.c
===================================================================
--- head/sys/netinet/in_pcb.c
+++ head/sys/netinet/in_pcb.c
@@ -339,8 +339,7 @@
 	}
 #endif
 
-	idx = INP_PCBLBGROUP_PORTHASH(inp->inp_lport,
-	    pcbinfo->ipi_lbgrouphashmask);
+	idx = INP_PCBPORTHASH(inp->inp_lport, pcbinfo->ipi_lbgrouphashmask);
 	hdr = &pcbinfo->ipi_lbgrouphashbase[idx];
 	CK_LIST_FOREACH(grp, hdr, il_list) {
 		if (grp->il_vflag == inp->inp_vflag &&
@@ -397,9 +396,7 @@
 	INP_HASH_WLOCK_ASSERT(pcbinfo);
 
 	hdr = &pcbinfo->ipi_lbgrouphashbase[
-	    INP_PCBLBGROUP_PORTHASH(inp->inp_lport,
-	        pcbinfo->ipi_lbgrouphashmask)];
-
+	    INP_PCBPORTHASH(inp->inp_lport, pcbinfo->ipi_lbgrouphashmask)];
 	CK_LIST_FOREACH(grp, hdr, il_list) {
 		for (i = 0; i < grp->il_inpcnt; ++i) {
 			if (grp->il_inp[i] != inp)
@@ -439,6 +436,8 @@
     char *inpcbzone_name, uma_init inpcbzone_init, u_int hashfields)
 {
 
+	porthash_nelements = imin(porthash_nelements, IPPORT_MAX + 1);
+
 	INP_INFO_LOCK_INIT(pcbinfo, name);
 	INP_HASH_LOCK_INIT(pcbinfo, "pcbinfohash");	/* XXXRW: argument? */
 	INP_LIST_LOCK_INIT(pcbinfo, "pcbinfolist");
@@ -452,7 +451,7 @@
 	    &pcbinfo->ipi_hashmask);
 	pcbinfo->ipi_porthashbase = hashinit(porthash_nelements, M_PCB,
 	    &pcbinfo->ipi_porthashmask);
-	pcbinfo->ipi_lbgrouphashbase = hashinit(hash_nelements, M_PCB,
+	pcbinfo->ipi_lbgrouphashbase = hashinit(porthash_nelements, M_PCB,
 	    &pcbinfo->ipi_lbgrouphashmask);
 #ifdef PCBGROUP
 	in_pcbgroup_init(pcbinfo, hashfields, hash_nelements);
@@ -1950,8 +1949,8 @@
 
 	INP_HASH_LOCK_ASSERT(pcbinfo);
 
-	hdr = &pcbinfo->ipi_lbgrouphashbase[INP_PCBLBGROUP_PORTHASH(lport,
-	    pcbinfo->ipi_lbgrouphashmask)];
+	hdr = &pcbinfo->ipi_lbgrouphashbase[
+	    INP_PCBPORTHASH(lport, pcbinfo->ipi_lbgrouphashmask)];
 
 	/*
 	 * Order of socket selection:
Index: head/sys/netinet6/in6_pcb.c
===================================================================
--- head/sys/netinet6/in6_pcb.c
+++ head/sys/netinet6/in6_pcb.c
@@ -880,8 +880,8 @@
 
 	INP_HASH_LOCK_ASSERT(pcbinfo);
 
-	hdr = &pcbinfo->ipi_lbgrouphashbase[INP_PCBLBGROUP_PORTHASH(
-	    lport, pcbinfo->ipi_lbgrouphashmask)];
+	hdr = &pcbinfo->ipi_lbgrouphashbase[
+	    INP_PCBPORTHASH(lport, pcbinfo->ipi_lbgrouphashmask)];
 
 	/*
 	 * Order of socket selection: