linux-kernel - Re: [PATCH] Kconfig: Make config Filter access to /dev/mem default y

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Message-ID: <20100415120048.488eb44c@lxorguk.ukuu.org.uk>
Date:	Thu, 15 Apr 2010 12:00:48 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Michal Svoboda <michal.svoboda@...nts.felk.cvut.cz>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Kconfig: Make config Filter access to /dev/mem default
 y

On Thu, 15 Apr 2010 08:36:26 +0200
Michal Svoboda <michal.svoboda@...nts.felk.cvut.cz> wrote:

> Xiaotian Feng wrote:
> > Have you ever successfully attack by this way? If CONFIG_STRICT_DEVMEM
> > is not set, the /dev/mem access is filtered in pat code.
> 
> If that option doesn't add any protection, what's it good for?


PAT is x86 specific
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