linux-kernel - Re: [PATCH 2/6] efi: Avoid fortify checks in EFI stub

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Message-ID: <CAKv+Gu9iurYBRRgXwVfrgZTvhDj=3b9Ey62_68r2AVMrF+QW0g@mail.gmail.com>
Date:   Fri, 16 Jun 2017 11:14:36 +0200
From:   Ard Biesheuvel <ard.biesheuvel@...aro.org>
To:     Kees Cook <keescook@...omium.org>
Cc:     Mark Rutland <mark.rutland@....com>,
        Matt Fleming <matt@...eblueprint.co.uk>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Daniel Micay <danielmicay@...il.com>
Subject: Re: [PATCH 2/6] efi: Avoid fortify checks in EFI stub

On 9 June 2017 at 11:01, Ard Biesheuvel <ard.biesheuvel@...aro.org> wrote:
> On 8 June 2017 at 02:37, Kees Cook <keescook@...omium.org> wrote:
>> On Wed, Jun 7, 2017 at 1:54 AM, Ard Biesheuvel
>> <ard.biesheuvel@...aro.org> wrote:
>>> On 7 June 2017 at 03:12, Kees Cook <keescook@...omium.org> wrote:
>>>> On Tue, Jun 6, 2017 at 10:17 AM, Mark Rutland <mark.rutland@....com> wrote:
>>>>> On Tue, Jun 06, 2017 at 05:13:07PM +0000, Ard Biesheuvel wrote:
>>>>>> (+ Mark, Matt)
>>>>>>
>>>>>> On 6 June 2017 at 04:52, Kees Cook <keescook@...omium.org> wrote:
>>>>>> > This avoids CONFIG_FORTIFY_SOURCE from being enabled during the EFI stub
>>>>>> > build, as adding a panic() implementation may not work well. This can be
>>>>>> > adjusted in the future.
>>>>>> >
>>>>>> > Suggested-by: Daniel Micay <danielmicay@...il.com>
>>>>>> > Signed-off-by: Kees Cook <keescook@...omium.org>
>>>>>> > Cc; Matt Fleming <matt@...eblueprint.co.uk>
>>>>>> > Cc: Ard Biesheuvel <ard.biesheuvel@...aro.org>
>>> [...]
>>>>>>
>>>>>> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@...aro.org>
>>>>>>
>>>>>> This is unlikely to conflict with anything going through the EFI tree,
>>>>>> so feel free to queue it elsewhere.
>>>>
>>>> If it can go through the EFI tree, that'd be great. Less for akpm to wrangle. :)
>>>>
>>>
>>> That is fine, but I'd prefer not to take a single patch out of
>>> context. Do you have a link to the entire series? I was only cc'ed on
>>> this patch (In the future, please cc me on the entire series in cases
>>> such as these.)
>>
>> This is to fix stuff noticed by the CONFIG_FORTIFY_SOURCE feature, now in -mm:
>> https://marc.info/?l=linux-kernel&m=149579258121273&w=2
>>
>> I was originally preparing it along with various fixes in my KSPP
>> tree, but akpm took it into -mm instead, and asked that I send out the
>> remaining fixes that hadn't been picked up yet. The thread with my
>> sending starts here:
>> https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1413683.html
>>
>> Hopefully that helps!
>>
>
> Thanks Kees
>
> Queued in efi/next

I see this has turned up in -next now. I guess I should drop it the
from the EFI tree then?