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Date: Mon, 29 Nov 2004 13:36:29 +0100
From: Wichert Akkerman <wichert@wiggy.net>
To: Jim Nelson <james4765@verizon.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Question about /dev/mem and /dev/kmem
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Previously Jim Nelson wrote:
> Isn't that /proc/sys/kernel/cap-bound?

yes, it is.

> And what stops an attacker who's already gained root from doing a "cat "0" 
> > /proc/sys/kernel/cap-bound" ?

The fact that you are not allowed to change the cap-bound settings with
that specific bitmask. 

Wichert.

-- 
Wichert Akkerman <wichert@wiggy.net>    It is simple to make things.
http://www.wiggy.net/                   It is hard to make things simple.
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