Index: sys/net/route.c
===================================================================
--- sys/net/route.c
+++ sys/net/route.c
@@ -903,7 +903,6 @@
 	info->rti_flags = rt->rt_flags;
 	info->rti_ifp = rt->rt_ifp;
 	info->rti_ifa = rt->rt_ifa;
-	ifa_ref(info->rti_ifa);
 	if (flags & NHR_REF) {
 		/* Do 'traditional' refcouting */
 		if_ref(info->rti_ifp);
@@ -1631,9 +1630,12 @@
 			error = rt_getifa_fib(info, fibnum);
 			if (error)
 				return (error);
+		} else {
+			ifa_ref(info->rti_ifa);
 		}
 		rt = uma_zalloc(V_rtzone, M_NOWAIT);
 		if (rt == NULL) {
+			ifa_free(info->rti_ifa);
 			return (ENOBUFS);
 		}
 		rt->rt_flags = RTF_UP | flags;
@@ -1642,6 +1644,7 @@
 		 * Add the gateway. Possibly re-malloc-ing the storage for it.
 		 */
 		if ((error = rt_setgate(rt, dst, gateway)) != 0) {
+			ifa_free(info->rti_ifa);
 			uma_zfree(V_rtzone, rt);
 			return (error);
 		}
@@ -1665,7 +1668,6 @@
 		 * examine the ifa and  ifa->ifa_ifp if it so desires.
 		 */
 		ifa = info->rti_ifa;
-		ifa_ref(ifa);
 		rt->rt_ifa = ifa;
 		rt->rt_ifp = ifa->ifa_ifp;
 		rt->rt_weight = 1;
@@ -2108,7 +2110,6 @@
 		 * Do the actual request
 		 */
 		bzero((caddr_t)&info, sizeof(info));
-		ifa_ref(ifa);
 		info.rti_ifa = ifa;
 		info.rti_flags = flags |
 		    (ifa->ifa_flags & ~IFA_RTSELF) | RTF_PINNED;
@@ -2122,7 +2123,6 @@
 			info.rti_info[RTAX_GATEWAY] = ifa->ifa_addr;
 		info.rti_info[RTAX_NETMASK] = netmask;
 		error = rtrequest1_fib(cmd, &info, &rt, fibnum);
-
 		if (error == 0 && rt != NULL) {
 			/*
 			 * notify any listening routing agents of the change