linux-kernel - Re: [kernel-hardening] Re: [RFC PATCH 2/2] mm: restrict access to /proc/slabinfo

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Message-ID: <alpine.DEB.2.00.1109190841580.8771@router.home>
Date:	Mon, 19 Sep 2011 08:42:46 -0500 (CDT)
From:	Christoph Lameter <cl@...two.org>
To:	Vasiliy Kulikov <segoon@...nwall.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	kernel-hardening@...ts.openwall.com, Kees Cook <kees@...ntu.com>,
	Cyrill Gorcunov <gorcunov@...il.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Pekka Enberg <penberg@...nel.org>,
	Matt Mackall <mpm@...enic.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, Dan Rosenberg <drosenberg@...curity.com>,
	Theodore Tso <tytso@....edu>, Alan Cox <alan@...ux.intel.com>,
	Jesper Juhl <jj@...osbits.net>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [kernel-hardening] Re: [RFC PATCH 2/2] mm: restrict access to
 /proc/slabinfo

On Sun, 18 Sep 2011, Vasiliy Kulikov wrote:

> > Reviewed-by: Kees Cook <kees@...ntu.com>
>
> Looks like the members of the previous slabinfo discussion don't object
> against the patch now and it got two other Reviewed-by responses.  Can
> you merge it as-is or should I probably convince someone else?

The patch is incomplete. If you want to restrict access to this
information then /sys/kernel/slab needs to have a similar
restriction.


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