From owner-svn-src-all@FreeBSD.ORG  Sat Sep  7 07:03:15 2013
Return-Path: <owner-svn-src-all@FreeBSD.ORG>
Delivered-To: svn-src-all@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTP id 89012E39;
 Sat,  7 Sep 2013 07:03:15 +0000 (UTC)
 (envelope-from glebius@FreeBSD.org)
Received: from cell.glebius.int.ru (glebius.int.ru [81.19.69.10])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (No client certificate requested)
 by mx1.freebsd.org (Postfix) with ESMTPS id 1168A2EFD;
 Sat,  7 Sep 2013 07:03:14 +0000 (UTC)
Received: from cell.glebius.int.ru (localhost [127.0.0.1])
 by cell.glebius.int.ru (8.14.7/8.14.7) with ESMTP id r8773DJt024135;
 Sat, 7 Sep 2013 11:03:13 +0400 (MSK)
 (envelope-from glebius@FreeBSD.org)
Received: (from glebius@localhost)
 by cell.glebius.int.ru (8.14.7/8.14.7/Submit) id r8773DP9024134;
 Sat, 7 Sep 2013 11:03:13 +0400 (MSK)
 (envelope-from glebius@FreeBSD.org)
X-Authentication-Warning: cell.glebius.int.ru: glebius set sender to
 glebius@FreeBSD.org using -f
Date: Sat, 7 Sep 2013 11:03:13 +0400
From: Gleb Smirnoff <glebius@FreeBSD.org>
To: Jamie Gritton <jamie@FreeBSD.org>
Subject: Re: svn commit: r255316 - head/sys/kern
Message-ID: <20130907070313.GO4574@FreeBSD.org>
References: <201309061732.r86HWTha054904@svn.freebsd.org>
 <20130906181826.GL4574@FreeBSD.org> <522A25FA.5060008@FreeBSD.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <522A25FA.5060008@FreeBSD.org>
User-Agent: Mutt/1.5.21 (2010-09-15)
Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org,
 src-committers@FreeBSD.org
X-BeenThere: svn-src-all@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: "SVN commit messages for the entire src tree \(except for &quot;
 user&quot; and &quot; projects&quot; \)" <svn-src-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-all>
List-Post: <mailto:svn-src-all@freebsd.org>
List-Help: <mailto:svn-src-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 07 Sep 2013 07:03:15 -0000

  Jamie,

On Fri, Sep 06, 2013 at 12:59:06PM -0600, Jamie Gritton wrote:
J> > J> +
J> > J> +		/*
J> > J> +		 * As in the non-jail case, non-root users are expected to be
J> > J> +		 * able to read kernel/phyiscal memory (provided /dev/[k]mem
J> > J> +		 * exists in the jail and they have permission to access it).
J> > J> +		 */
J> > J> +	case PRIV_KMEM_READ:
J> > J>  		return (0);
J> > J>  
J> > J>  		/*
J> > 
J> > Was that discussed anywhere or reviewed by anyone?
J> 
J> Yes, it was brought up by jase@ in src-committers last week, noting that
J> my original PRIV_KMEM_* commit (r252841) broke existing jail behavior.
J> The entire "discussion" was the mention of the problem and my mention of
J> what it would take to fix it. There was no code review as such, but that
J> seemed appropriate for an obvious one-liner.

I'm sorry then.

Does that mean that we always have had ability for a jail-root to
investigate kernel memory?

-- 
Totus tuus, Glebius.