From: deraadt <deraadt@openbsd.org>
Date: Mon, 24 Sep 2018 21:26:38 +0000 (+0000)
Subject: After opening required descriptors, savecore only plays in one directory
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=e18d1965d1668bb971d3a78c151d2ed11d29b64a;p=openbsd

After opening required descriptors, savecore only plays in one directory
so use unveil(2).
---

diff --git a/sbin/savecore/savecore.c b/sbin/savecore/savecore.c
index a96c618c621..8b2a6cf50d0 100644
--- a/sbin/savecore/savecore.c
+++ b/sbin/savecore/savecore.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: savecore.c,v 1.57 2016/09/01 14:12:07 tedu Exp $	*/
+/*	$OpenBSD: savecore.c,v 1.58 2018/09/24 21:26:38 deraadt Exp $	*/
 /*	$NetBSD: savecore.c,v 1.26 1996/03/18 21:16:05 leo Exp $	*/
 
 /*-
@@ -171,6 +171,10 @@ main(int argc, char *argv[])
 	(void)time(&now);
 	kmem_setup();
 
+	if (unveil(dirn, "rwc") == -1) {
+		syslog(LOG_ERR, "unveil: %m");
+		exit(1);
+	}
 	if (pledge("stdio rpath wpath cpath", NULL) == -1) {
 		syslog(LOG_ERR, "pledge: %m");
 		exit(1);