From owner-svn-src-stable@FreeBSD.ORG  Wed Jul 27 01:56:53 2011
Return-Path: <owner-svn-src-stable@FreeBSD.ORG>
Delivered-To: svn-src-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 0A60B106564A;
	Wed, 27 Jul 2011 01:56:53 +0000 (UTC) (envelope-from gjb@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id ED48B8FC12;
	Wed, 27 Jul 2011 01:56:52 +0000 (UTC)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.4/8.14.4) with ESMTP id p6R1uq38035837;
	Wed, 27 Jul 2011 01:56:52 GMT (envelope-from gjb@svn.freebsd.org)
Received: (from gjb@localhost)
	by svn.freebsd.org (8.14.4/8.14.4/Submit) id p6R1uquD035835;
	Wed, 27 Jul 2011 01:56:52 GMT (envelope-from gjb@svn.freebsd.org)
Message-Id: <201107270156.p6R1uquD035835@svn.freebsd.org>
From: Glen Barber <gjb@FreeBSD.org>
Date: Wed, 27 Jul 2011 01:56:52 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
	svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org
X-SVN-Group: stable-8
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r224462 - stable/8/usr.sbin/jail
X-BeenThere: svn-src-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: SVN commit messages for all the -stable branches of the src tree
	<svn-src-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-stable>, 
	<mailto:svn-src-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-stable>
List-Post: <mailto:svn-src-stable@freebsd.org>
List-Help: <mailto:svn-src-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-stable>,
	<mailto:svn-src-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 27 Jul 2011 01:56:53 -0000

Author: gjb (doc committer)
Date: Wed Jul 27 01:56:52 2011
New Revision: 224462
URL: http://svn.freebsd.org/changeset/base/224462

Log:
  MFC 224286:
  
  Document the potential for jail escape.
  
  PR:		142341

Modified:
  stable/8/usr.sbin/jail/jail.8
Directory Properties:
  stable/8/usr.sbin/jail/   (props changed)

Modified: stable/8/usr.sbin/jail/jail.8
==============================================================================
--- stable/8/usr.sbin/jail/jail.8	Tue Jul 26 20:51:58 2011	(r224461)
+++ stable/8/usr.sbin/jail/jail.8	Wed Jul 27 01:56:52 2011	(r224462)
@@ -34,7 +34,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd January 17, 2010
+.Dd July 23, 2011
 .Dt JAIL 8
 .Os
 .Sh NAME
@@ -913,3 +913,10 @@ Currently, the simplest answer is to min
 offered on the host, possibly limiting it to services offered from
 .Xr inetd 8
 which is easily configurable.
+.Sh NOTES
+Great care should be taken when managing directories visible within the jail.
+For example, if a jailed process has its current working directory set to a
+directory that is moved out of the jail's chroot, then the process may gain
+access to the file space outside of the jail.
+It is recommended that directories always be copied, rather than moved, out
+of a jail.