From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Newall <david@davidnewall.com>
Subject: Re: [patch 1/2] [RFC] Simple tamper-proof device filesystem.
Date: Mon, 17 Dec 2007 16:30:54 +1030
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Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
To: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
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Tetsuo Handa wrote:
> If Bob is malicious and creates /dev/sda1 with block-8-2 attribute [...]

Bob can't do that.  Only root can.