From b787db24c751527653af0a097e3b1771834c6c61 Mon Sep 17 00:00:00 2001
From: beck <beck@openbsd.org>
Date: Fri, 27 Jul 2018 01:44:19 +0000
Subject: [PATCH] Don't double vput and panic after looking up "."

---
 sys/kern/vfs_syscalls.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c
index ec5d7a853a8..768a5676736 100644
--- a/sys/kern/vfs_syscalls.c
+++ b/sys/kern/vfs_syscalls.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vfs_syscalls.c,v 1.295 2018/07/22 06:31:17 anton Exp $	*/
+/*	$OpenBSD: vfs_syscalls.c,v 1.296 2018/07/27 01:44:19 beck Exp $	*/
 /*	$NetBSD: vfs_syscalls.c,v 1.71 1996/04/23 10:29:02 mycroft Exp $	*/
 
 /*
@@ -945,7 +945,7 @@ sys_unveil(struct proc *p, void *v, register_t *retval)
 	/* release vref and lock from namei, but not vref from ppath_add */
 	if (nd.ni_vp)
 		vput(nd.ni_vp);
-	if (nd.ni_dvp)
+	if (nd.ni_dvp && nd.ni_dvp != nd.ni_vp)
 		vput(nd.ni_dvp);
 	return (error);
 }
-- 
2.20.1