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Message-ID: <CAOJsxLFdNVnW6Faap0UaqZQDQxbA_dEiR2HGdzZtGMJFsVR1WQ@mail.gmail.com>
Date: Mon, 19 Sep 2011 21:46:55 +0300
From: Pekka Enberg <penberg@...helsinki.fi>
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>, 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: Re: [RFC PATCH 2/2] mm: restrict access to /proc/slabinfo
On Mon, Sep 19, 2011 at 8:58 PM, Vasiliy Kulikov <segoon@...nwall.com> wrote:
>> Isn't this
>> much stronger protection especially if you combine that with /proc/slabinfo
>> restriction?
>
> I don't see any reason to change allocators if we close slabinfo.
OK, so what about /proc/meminfo, sysfs, 'perf kmem', and other kernel interfaces
through which you can get direct or indirect information about kernel memory
allocations?
Pekka
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