Index: sys/netinet/in_pcb.c
===================================================================
--- sys/netinet/in_pcb.c	(revision 316485)
+++ sys/netinet/in_pcb.c	(working copy)
@@ -291,6 +291,7 @@
 	if (inp == NULL)
 		return (ENOBUFS);
 	bzero(inp, inp_zero_size);
+	bzero(&inp->inp_rtu, sizeof(inp->inp_rtu));
 	inp->inp_pcbinfo = pcbinfo;
 	inp->inp_socket = so;
 	inp->inp_cred = crhold(so->so_cred);
Index: sys/netinet/in_pcb.h
===================================================================
--- sys/netinet/in_pcb.h	(revision 316485)
+++ sys/netinet/in_pcb.h	(working copy)
@@ -461,7 +461,7 @@
 } __aligned(CACHE_LINE_SIZE);
 
 #define INP_LOCK_INIT(inp, d, t) \
-	rw_init_flags(&(inp)->inp_lock, (t), RW_RECURSE |  RW_DUPOK)
+	rw_init_flags(&(inp)->inp_lock, (t), RW_RECURSE | RW_DUPOK | RW_NEW)
 #define INP_LOCK_DESTROY(inp)	rw_destroy(&(inp)->inp_lock)
 #define INP_RLOCK(inp)		rw_rlock(&(inp)->inp_lock)
 #define INP_WLOCK(inp)		rw_wlock(&(inp)->inp_lock)