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Date: Mon, 12 Sep 2011 19:06:30 +0400
From: Cyrill Gorcunov <>
To: Vasiliy Kulikov <>
	Andrew Morton <>,
	Al Viro <>,
	Christoph Lameter <>,
	Pekka Enberg <>, Matt Mackall <>,,
Subject: Re: [RFC PATCH 2/2] mm: restrict access to /proc/slabinfo

On Sat, Sep 10, 2011 at 08:41:34PM +0400, Vasiliy Kulikov wrote:
> Historically /proc/slabinfo has 0444 permissions and is accessible to
> the world.  slabinfo contains rather private information related both to
> the kernel and userspace tasks.  Depending on the situation, it might
> reveal either private information per se or information useful to make
> another targeted attack.  Some examples of what can be learned by
> reading/watching for /proc/slabinfo entries:

Since this file is controversy point, probably its permissions might be
configurable via setup option?


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