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Date: Mon, 19 Sep 2011 08:42:46 -0500 (CDT)
From: Christoph Lameter <cl@gentwo.org>
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To: Vasiliy Kulikov <segoon@openwall.com>
cc: Andrew Morton <akpm@linux-foundation.org>,
        kernel-hardening@lists.openwall.com, Kees Cook <kees@ubuntu.com>,
        Cyrill Gorcunov <gorcunov@gmail.com>,
        Al Viro <viro@zeniv.linux.org.uk>,
        Christoph Lameter <cl@linux-foundation.org>,
        Pekka Enberg <penberg@kernel.org>, Matt Mackall <mpm@selenic.com>,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        Dan Rosenberg <drosenberg@vsecurity.com>, Theodore Tso <tytso@mit.edu>,
        Alan Cox <alan@linux.intel.com>, Jesper Juhl <jj@chaosbits.net>,
        Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [kernel-hardening] Re: [RFC PATCH 2/2] mm: restrict access to
 /proc/slabinfo
In-Reply-To: <20110918170512.GA2351@albatros>
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References: <20110910164001.GA2342@albatros> <20110910164134.GA2442@albatros> <20110914192744.GC4529@outflux.net> <20110918170512.GA2351@albatros>
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On Sun, 18 Sep 2011, Vasiliy Kulikov wrote:

> > Reviewed-by: Kees Cook <kees@ubuntu.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.