From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Thu, 04 Aug 2011 09:26:34 +0100
From: Marc Zyngier <marc.zyngier@arm.com>
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Subject: [kernel-hardening] Re: [PATCH] shm: fix a race between shm_exit() and shm_init()
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>, Vasiliy Kulikov <segoon@openwall.com>, Manuel Lauss <manuel.lauss@googlemail.com>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, Richard Weinberger <richard@nod.at>, Ingo Molnar <mingo@elte.hu>, "kernel-hardening@lists.openwall.com" <kernel-hardening@lists.openwall.com>, "Paul E. McKenney" <paul.mckenney@linaro.org>
List-ID: <kernel-hardening.lists.openwall.com>

On 04/08/11 01:35, Linus Torvalds wrote:
> On Wed, Aug 3, 2011 at 12:30 AM, Marc Zyngier <marc.zyngier@arm.com> wrot=
e:
>>
>> driver_init() is called from do_basic_setup(), before any initcall...
>=20
> Ok, thanks everybody. I think the proper fix is the attached patch.
> It's crazy to have usermode helpers enabled early during boot when
> init etc haven't even been set up.
>=20
> So does this finally fix the problem (I realize that there are other
> patches floating around that *also* fix it, so please test this
> without those other patches).

This patch alone doesn't cure the problem... However, if combined with
the pure_initcall patch, it boots correctly.

I'll try to gather some traces later today.

=09M.
--=20
Jazz is not dead. It just smells funny...