To: Bodo Eggert <7eggert@gmx.de>
Cc: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>,
       Bodo Eggert <7eggert@gmx.de>, Matthias Schniedermeyer <ms@citd.de>,
       Tuomo Valkonen <tuomov@iki.fi>, linux-kernel@vger.kernel.org
From: TimC <tconnors@astro.swin.edu.au>
Subject: Re: The ext3 way of journalling
Mail-Copies-To: tconnors@astro.swin.edu.au
In-reply-to: <alpine.LSU.0.999.0801120236500.9944@be1.lrz>
References: <9JpbI-5yi-9@gated-at.bofh.it> <9Jqri-7ym-17@gated-at.bofh.it> <9JqUn-8bF-15@gated-at.bofh.it> <9JvKj-85h-41@gated-at.bofh.it> <E1JDMeb-0003qH-Mv@be1.7eggert.dyndns.org> <20080111183927.GM2310@csclub.uwaterloo.ca> <alpine.LSU.0.999.0801120236500.9944@be1.lrz>
Message-ID: <slrn-0.9.7.4-27208-4606-200801121808-tc@hexane.ssi.swin.edu.au>
Date: Sat, 12 Jan 2008 18:10:18 +1100
Sender: linux-kernel-owner@vger.kernel.org
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Bodo Eggert <7eggert@gmx.de> said on Sat, 12 Jan 2008 02:41:17 +0100 (CET):
> On Fri, 11 Jan 2008, Lennart Sorensen wrote:
> > On Fri, Jan 11, 2008 at 05:22:45PM +0100, Bodo Eggert wrote:
> 
> > > What can happen if someone does tune2fs -Lroot /dev/usbstick
> > > and puts that stick into this system?
> > 
> > Don't know.  I use UUIDs rather than LABELs.  Having duplicated labels
> > just means being careless.  Having duplicate UUIDs should require being
> > malicous.
> 
> That's exactly what you have to assume for your users. Otherwise, you could 
> remove any security feature from the system.

If they've got physical access to your machine, you've already lost.

-- 
TimC
A bug in the code is worth two in the documentation. --unknown
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