Index: sys/netinet/in_pcb.c
===================================================================
--- sys/netinet/in_pcb.c
+++ sys/netinet/in_pcb.c
@@ -506,6 +506,7 @@
  * Different protocols initialize their inpcbs differently - giving
  * different name to the lock.  But they all are disposed the same.
  */
+static void inpcb_dtor(void *, int, void *);
 static void
 inpcb_fini(void *mem, int size)
 {
@@ -542,7 +543,7 @@
 	pcbinfo->ipi_lbgrouphashbase = hashinit(porthash_nelements, M_PCB,
 	    &pcbinfo->ipi_lbgrouphashmask);
 	pcbinfo->ipi_zone = uma_zcreate(inpcbzone_name, sizeof(struct inpcb),
-	    NULL, NULL, inpcbzone_init, inpcb_fini, UMA_ALIGN_PTR,
+	    NULL, inpcb_dtor, inpcbzone_init, inpcb_fini, UMA_ALIGN_PTR,
 	    UMA_ZONE_SMR);
 	uma_zone_set_max(pcbinfo->ipi_zone, maxsockets);
 	uma_zone_set_warning(pcbinfo->ipi_zone,
@@ -644,7 +645,6 @@
 
 #if defined(IPSEC) || defined(IPSEC_SUPPORT) || defined(MAC)
 out:
-	crfree(inp->inp_cred);
 	uma_zfree_smr(pcbinfo->ipi_zone, inp);
 	return (error);
 #endif
@@ -1833,7 +1833,6 @@
 		inp->inp_flags &= ~INP_INHASHLIST;
 	}
 
-	crfree(inp->inp_cred);
 	RO_INVALIDATE_CACHE(&inp->inp_route);
 #ifdef MAC
 	mac_inpcb_destroy(inp);
@@ -1864,6 +1863,15 @@
 #ifdef INET
 	inp_freemoptions(imo);
 #endif
+	/* Destruction is finalized in inpcb_dtor(). */
+}
+
+static void
+inpcb_dtor(void *mem, int size, void *arg)
+{
+	struct inpcb *inp = mem;
+
+	crfree(inp->inp_cred);
 }
 
 /*