diff -up openssh-7.4p1/misc.c.daemon openssh-7.4p1/misc.c
--- openssh-7.4p1/misc.c.daemon	2017-02-03 13:08:14.751282516 +0100
+++ openssh-7.4p1/misc.c	2017-02-03 13:08:14.778282474 +0100
@@ -1273,6 +1273,9 @@ daemonized(void)
 		return 0;	/* parent is not init */
 	if (getsid(0) != getpid())
 		return 0;	/* not session leader */
+	if (getenv("_SSH_DAEMONIZED") == NULL)
+		return 0;	/* already reexeced */
+
 	debug3("already daemonized");
 	return 1;
 }
diff -up openssh-7.4p1/sshd.c.daemon openssh-7.4p1/sshd.c
--- openssh-7.4p1/sshd.c.daemon	2017-02-03 13:08:14.755282510 +0100
+++ openssh-7.4p1/sshd.c	2017-02-03 13:09:29.765164356 +0100
@@ -1866,6 +1866,7 @@ main(int ac, char **av)
 		if (daemon(0, 0) < 0)
 			fatal("daemon() failed: %.200s", strerror(errno));
 
+		setenv("_SSH_DAEMONIZED", "1", 1);
 		disconnect_controlling_tty();
 	}
 	/* Reinitialize the log (because of the fork above). */