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From: labbott@redhat.com (Laura Abbott)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv2] arm: Update all mm structures with section adjustments
Date: Mon, 30 Nov 2015 16:42:25 -0800	[thread overview]
Message-ID: <565CECF1.6090101@redhat.com> (raw)
In-Reply-To: <CAGXu5j+P2Y_dSJo=tK7hBNX_7hOiG23rA7nXcQ99csNA0_CSvA@mail.gmail.com>

On 11/30/2015 03:40 PM, Kees Cook wrote:
> On Thu, Nov 19, 2015 at 11:10 AM, Kees Cook <keescook@chromium.org> wrote:
>> On Wed, Nov 18, 2015 at 4:14 PM, Laura Abbott <labbott@fedoraproject.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@fedoraproject.org>
>>
>> This looks right to me. :)
>>
>> Reviewed-by: Kees Cook <keescook@chromium.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

WARNING: multiple messages have this Message-ID (diff)
From: Laura Abbott <labbott@redhat.com>
To: Kees Cook <keescook@chromium.org>,
	Laura Abbott <labbott@fedoraproject.org>
Cc: Russell King <linux@arm.linux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Linux-MM <linux-mm@kvack.org>
Subject: Re: [PATCHv2] arm: Update all mm structures with section adjustments
Date: Mon, 30 Nov 2015 16:42:25 -0800	[thread overview]
Message-ID: <565CECF1.6090101@redhat.com> (raw)
In-Reply-To: <CAGXu5j+P2Y_dSJo=tK7hBNX_7hOiG23rA7nXcQ99csNA0_CSvA@mail.gmail.com>

On 11/30/2015 03:40 PM, Kees Cook wrote:
> On Thu, Nov 19, 2015 at 11:10 AM, Kees Cook <keescook@chromium.org> wrote:
>> On Wed, Nov 18, 2015 at 4:14 PM, Laura Abbott <labbott@fedoraproject.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@fedoraproject.org>
>>
>> This looks right to me. :)
>>
>> Reviewed-by: Kees Cook <keescook@chromium.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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WARNING: multiple messages have this Message-ID (diff)
From: Laura Abbott <labbott@redhat.com>
To: Kees Cook <keescook@chromium.org>,
	Laura Abbott <labbott@fedoraproject.org>
Cc: Russell King <linux@arm.linux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Linux-MM <linux-mm@kvack.org>
Subject: Re: [PATCHv2] arm: Update all mm structures with section adjustments
Date: Mon, 30 Nov 2015 16:42:25 -0800	[thread overview]
Message-ID: <565CECF1.6090101@redhat.com> (raw)
In-Reply-To: <CAGXu5j+P2Y_dSJo=tK7hBNX_7hOiG23rA7nXcQ99csNA0_CSvA@mail.gmail.com>

On 11/30/2015 03:40 PM, Kees Cook wrote:
> On Thu, Nov 19, 2015 at 11:10 AM, Kees Cook <keescook@chromium.org> wrote:
>> On Wed, Nov 18, 2015 at 4:14 PM, Laura Abbott <labbott@fedoraproject.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@fedoraproject.org>
>>
>> This looks right to me. :)
>>
>> Reviewed-by: Kees Cook <keescook@chromium.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

  reply	other threads:[~2015-12-01  0:42 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-19  0:14 [PATCHv2] arm: Update all mm structures with section adjustments Laura Abbott
2015-11-19  0:14 ` Laura Abbott
2015-11-19  0:14 ` Laura Abbott
2015-11-19 19:10 ` Kees Cook
2015-11-19 19:10   ` Kees Cook
2015-11-19 19:10   ` Kees Cook
2015-11-30 23:40   ` Kees Cook
2015-11-30 23:40     ` Kees Cook
2015-11-30 23:40     ` Kees Cook
2015-12-01  0:42     ` Laura Abbott [this message]
2015-12-01  0:42       ` Laura Abbott
2015-12-01  0:42       ` Laura Abbott
2015-12-01  1:10       ` Kees Cook
2015-12-01  1:10         ` Kees Cook
2015-12-01  1:10         ` Kees Cook

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