Index: sys/kern/uipc_socket.c
===================================================================
--- sys/kern/uipc_socket.c
+++ sys/kern/uipc_socket.c
@@ -1969,8 +1969,9 @@
 				m = so->so_rcv.sb_mb;
 				goto dontblock;
 			}
-		if ((so->so_state & (SS_ISCONNECTED|SS_ISCONNECTING)) == 0 &&
-		    (so->so_proto->pr_flags & PR_CONNREQUIRED)) {
+		if ((so->so_state & (SS_ISCONNECTING | SS_ISCONNECTED |
+		    SS_ISDISCONNECTING | SS_ISDISCONNECTED)) == 0 &&
+		    (so->so_proto->pr_flags & PR_CONNREQUIRED) != 0) {
 			SOCKBUF_UNLOCK(&so->so_rcv);
 			error = ENOTCONN;
 			goto release;