linux-kernel - Re: [PATCHv2] arm: Update all mm structures with section adjustments

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Message-ID: <565CECF1.6090101@redhat.com>
Date:	Mon, 30 Nov 2015 16:42:25 -0800
From:	Laura Abbott <labbott@...hat.com>
To:	Kees Cook <keescook@...omium.org>,
	Laura Abbott <labbott@...oraproject.org>
Cc:	Russell King <linux@....linux.org.uk>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux-MM <linux-mm@...ck.org>
Subject: Re: [PATCHv2] arm: Update all mm structures with section adjustments

On 11/30/2015 03:40 PM, Kees Cook wrote:
> On Thu, Nov 19, 2015 at 11:10 AM, Kees Cook <keescook@...omium.org> wrote:
>> On Wed, Nov 18, 2015 at 4:14 PM, Laura Abbott <labbott@...oraproject.org> wrote:
>>> Currently, when updating section permissions to mark areas RO
>>> or NX, the only mm updated is current->mm. This is working off
>>> the assumption that there are no additional mm structures at
>>> the time. This may not always hold true. (Example: calling
>>> modprobe early will trigger a fork/exec). Ensure all mm structres
>>> get updated with the new section information.
>>>
>>> Signed-off-by: Laura Abbott <labbott@...oraproject.org>
>>
>> This looks right to me. :)
>>
>> Reviewed-by: Kees Cook <keescook@...omium.org>
>>
>> Russell, does this work for you?
>
> Did this end up in the patch tracker? (I just sent a patch that'll
> collide with this... I'm happy to do the fix up.)
>

I put this in the patch tracker this morning.
  
> -Kees
>

Thanks,
Laura
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