diff --git a/freebsd/netinet/tcp_usrreq.c b/freebsd/netinet/tcp_usrreq.c
index f4e3f305d..ac5754c7e 100644
--- a/freebsd/netinet/tcp_usrreq.c
+++ b/freebsd/netinet/tcp_usrreq.c
@@ -358,6 +358,7 @@ tcp6_usr_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
 	struct inpcb *inp;
 	struct tcpcb *tp = NULL;
 	struct sockaddr_in6 *sin6p;
+	u_char vflagsav;
 
 	sin6p = (struct sockaddr_in6 *)nam;
 	if (nam->sa_len != sizeof (*sin6p))
@@ -374,6 +375,7 @@ tcp6_usr_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
 	inp = sotoinpcb(so);
 	KASSERT(inp != NULL, ("tcp6_usr_bind: inp == NULL"));
 	INP_WLOCK(inp);
+	vflagsav = inp->inp_vflag;
 	if (inp->inp_flags & (INP_TIMEWAIT | INP_DROPPED)) {
 		error = EINVAL;
 		goto out;
@@ -403,6 +405,8 @@ tcp6_usr_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
 	error = in6_pcbbind(inp, nam, td->td_ucred);
 	INP_HASH_WUNLOCK(&V_tcbinfo);
 out:
+	if (error != 0)
+		inp->inp_vflag = vflagsav;
 	TCPDEBUG2(PRU_BIND);
 	TCP_PROBE2(debug__user, tp, PRU_BIND);
 	INP_WUNLOCK(inp);
@@ -466,6 +470,7 @@ tcp6_usr_listen(struct socket *so, int backlog, struct thread *td)
 	int error = 0;
 	struct inpcb *inp;
 	struct tcpcb *tp = NULL;
+	u_char vflagsav;
 
 	TCPDEBUG0;
 	inp = sotoinpcb(so);
@@ -475,6 +480,7 @@ tcp6_usr_listen(struct socket *so, int backlog, struct thread *td)
 		error = EINVAL;
 		goto out;
 	}
+	vflagsav = inp->inp_vflag;
 	tp = intotcpcb(inp);
 	TCPDEBUG1();
 	SOCK_LOCK(so);
@@ -501,6 +507,9 @@ tcp6_usr_listen(struct socket *so, int backlog, struct thread *td)
 	if (tp->t_flags & TF_FASTOPEN)
 		tp->t_tfo_pending = tcp_fastopen_alloc_counter();
 #endif
+	if (error != 0)
+		inp->inp_vflag = vflagsav;
+
 out:
 	TCPDEBUG2(PRU_LISTEN);
 	TCP_PROBE2(debug__user, tp, PRU_LISTEN);
@@ -577,6 +586,8 @@ tcp6_usr_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
 	struct inpcb *inp;
 	struct tcpcb *tp = NULL;
 	struct sockaddr_in6 *sin6p;
+	u_int8_t incflagsav;
+	u_char vflagsav;
 
 	TCPDEBUG0;
 
@@ -593,6 +604,8 @@ tcp6_usr_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
 	inp = sotoinpcb(so);
 	KASSERT(inp != NULL, ("tcp6_usr_connect: inp == NULL"));
 	INP_WLOCK(inp);
+	vflagsav = inp->inp_vflag;
+	incflagsav = inp->inp_inc.inc_flags;
 	if (inp->inp_flags & INP_TIMEWAIT) {
 		error = EADDRINUSE;
 		goto out;
@@ -618,11 +631,11 @@ tcp6_usr_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
 		}
 
 		in6_sin6_2_sin(&sin, sin6p);
-		inp->inp_vflag |= INP_IPV4;
-		inp->inp_vflag &= ~INP_IPV6;
 		if ((error = prison_remote_ip4(td->td_ucred,
 		    &sin.sin_addr)) != 0)
 			goto out;
+		inp->inp_vflag |= INP_IPV4;
+		inp->inp_vflag &= ~INP_IPV6;
 		if ((error = tcp_connect(tp, (struct sockaddr *)&sin, td)) != 0)
 			goto out;
 #ifdef TCP_OFFLOAD
@@ -635,11 +648,11 @@ tcp6_usr_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
 		goto out;
 	}
 #endif
+	if ((error = prison_remote_ip6(td->td_ucred, &sin6p->sin6_addr)) != 0)
+		goto out;
 	inp->inp_vflag &= ~INP_IPV4;
 	inp->inp_vflag |= INP_IPV6;
 	inp->inp_inc.inc_flags |= INC_ISIPV6;
-	if ((error = prison_remote_ip6(td->td_ucred, &sin6p->sin6_addr)) != 0)
-		goto out;
 	if ((error = tcp6_connect(tp, nam, td)) != 0)
 		goto out;
 #ifdef TCP_OFFLOAD
@@ -652,6 +665,15 @@ tcp6_usr_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
 	error = tp->t_fb->tfb_tcp_output(tp);
 
 out:
+	/*
+	 * If the implicit bind in the connect call fails, restore
+	 * the flags we modified.
+	 */
+	if (error != 0 && inp->inp_lport == 0) {
+		inp->inp_vflag = vflagsav;
+		inp->inp_inc.inc_flags = incflagsav;
+	}
+
 	TCPDEBUG2(PRU_CONNECT);
 	TCP_PROBE2(debug__user, tp, PRU_CONNECT);
 	INP_WUNLOCK(inp);
diff --git a/freebsd/netinet6/sctp6_usrreq.c b/freebsd/netinet6/sctp6_usrreq.c
index cbe50d93e..1e4364d8c 100644
--- a/freebsd/netinet6/sctp6_usrreq.c
+++ b/freebsd/netinet6/sctp6_usrreq.c
@@ -573,6 +573,7 @@ sctp6_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 	struct sctp_inpcb *inp;
 	struct in6pcb *inp6;
 	int error;
+	u_char vflagsav;
 
 	inp = (struct sctp_inpcb *)so->so_pcb;
 	if (inp == NULL) {
@@ -603,6 +604,7 @@ sctp6_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 		}
 	}
 	inp6 = (struct in6pcb *)inp;
+	vflagsav = inp6->inp_vflag;
 	inp6->inp_vflag &= ~INP_IPV4;
 	inp6->inp_vflag |= INP_IPV6;
 	if ((addr != NULL) && (SCTP_IPV6_V6ONLY(inp6) == 0)) {
@@ -632,7 +634,7 @@ sctp6_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 					inp6->inp_vflag |= INP_IPV4;
 					inp6->inp_vflag &= ~INP_IPV6;
 					error = sctp_inpcb_bind(so, (struct sockaddr *)&sin, NULL, p);
-					return (error);
+					goto out;
 				}
 #endif
 				break;
@@ -649,7 +651,8 @@ sctp6_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 		if (addr->sa_family == AF_INET) {
 			/* can't bind v4 addr to v6 only socket! */
 			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
-			return (EINVAL);
+			error = EINVAL;
+			goto out;
 		}
 #endif
 		sin6_p = (struct sockaddr_in6 *)addr;
@@ -658,10 +661,14 @@ sctp6_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 			/* can't bind v4-mapped addrs either! */
 			/* NOTE: we don't support SIIT */
 			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
-			return (EINVAL);
+			error = EINVAL;
+			goto out;
 		}
 	}
 	error = sctp_inpcb_bind(so, addr, NULL, p);
+out:
+	if (error != 0)
+		inp6->inp_vflag = vflagsav;
 	return (error);
 }
 
diff --git a/freebsd/netinet6/udp6_usrreq.c b/freebsd/netinet6/udp6_usrreq.c
index 0904e86f9..831c0efa5 100644
--- a/freebsd/netinet6/udp6_usrreq.c
+++ b/freebsd/netinet6/udp6_usrreq.c
@@ -1007,6 +1007,7 @@ udp6_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
 	struct inpcb *inp;
 	struct inpcbinfo *pcbinfo;
 	int error;
+	u_char vflagsav;
 
 	pcbinfo = udp_get_inpcbinfo(so->so_proto->pr_protocol);
 	inp = sotoinpcb(so);
@@ -1014,6 +1015,7 @@ udp6_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
 
 	INP_WLOCK(inp);
 	INP_HASH_WLOCK(pcbinfo);
+	vflagsav = inp->inp_vflag;
 	inp->inp_vflag &= ~INP_IPV4;
 	inp->inp_vflag |= INP_IPV6;
 	if ((inp->inp_flags & IN6P_IPV6_V6ONLY) == 0) {
@@ -1041,6 +1043,8 @@ udp6_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
 #ifdef INET
 out:
 #endif
+	if (error != 0)
+		inp->inp_vflag = vflagsav;
 	INP_HASH_WUNLOCK(pcbinfo);
 	INP_WUNLOCK(inp);
 	return (error);
@@ -1087,6 +1091,7 @@ udp6_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
 	struct inpcbinfo *pcbinfo;
 	struct sockaddr_in6 *sin6;
 	int error;
+	u_char vflagsav;
 
 	pcbinfo = udp_get_inpcbinfo(so->so_proto->pr_protocol);
 	inp = sotoinpcb(so);
@@ -1110,17 +1115,26 @@ udp6_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
 			goto out;
 		}
 		in6_sin6_2_sin(&sin, sin6);
-		inp->inp_vflag |= INP_IPV4;
-		inp->inp_vflag &= ~INP_IPV6;
 		error = prison_remote_ip4(td->td_ucred, &sin.sin_addr);
 		if (error != 0)
 			goto out;
+		vflagsav = inp->inp_vflag;
+		inp->inp_vflag |= INP_IPV4;
+		inp->inp_vflag &= ~INP_IPV6;
 		INP_HASH_WLOCK(pcbinfo);
 		error = in_pcbconnect(inp, (struct sockaddr *)&sin,
 		    td->td_ucred);
 		INP_HASH_WUNLOCK(pcbinfo);
+		/*
+		 * If connect succeeds, mark socket as connected. If
+		 * connect fails and socket is unbound, reset inp_vflag
+		 * field.
+		 */
 		if (error == 0)
 			soisconnected(so);
+		else if (inp->inp_laddr.s_addr == INADDR_ANY &&
+		    inp->inp_lport == 0)
+			inp->inp_vflag = vflagsav;
 		goto out;
 	}
 #endif
@@ -1128,16 +1142,25 @@ udp6_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
 		error = EISCONN;
 		goto out;
 	}
-	inp->inp_vflag &= ~INP_IPV4;
-	inp->inp_vflag |= INP_IPV6;
 	error = prison_remote_ip6(td->td_ucred, &sin6->sin6_addr);
 	if (error != 0)
 		goto out;
+	vflagsav = inp->inp_vflag;
+	inp->inp_vflag &= ~INP_IPV4;
+	inp->inp_vflag |= INP_IPV6;
 	INP_HASH_WLOCK(pcbinfo);
 	error = in6_pcbconnect(inp, nam, td->td_ucred);
 	INP_HASH_WUNLOCK(pcbinfo);
+	/*
+	 * If connect succeeds, mark socket as connected. If
+	 * connect fails and socket is unbound, reset inp_vflag
+	 * field.
+	 */
 	if (error == 0)
 		soisconnected(so);
+	else if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr) &&
+	    inp->inp_lport == 0)
+		inp->inp_vflag = vflagsav;
 out:
 	INP_WUNLOCK(inp);
 	return (error);