linux-hardening - Re: [PATCH v5] overflow: Introduce overflows_type() and castable_to

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Date:   Wed, 2 Nov 2022 13:27:31 +0200
From:   Gwan-gyeong Mun <gwan-gyeong.mun@...el.com>
To:     Kees Cook <keescook@...omium.org>
CC:     <arnd@...nel.org>, <mauro.chehab@...ux.intel.com>,
        <tvrtko.ursulin@...ux.intel.com>, <airlied@...ux.ie>,
        <trix@...hat.com>, <dlatypov@...gle.com>, <llvm@...ts.linux.dev>,
        <ndesaulniers@...gle.com>, <linux-kernel@...r.kernel.org>,
        <dri-devel@...ts.freedesktop.org>, <gustavoars@...nel.org>,
        <nathan@...nel.org>, <linux-sparse@...r.kernel.org>,
        <linux-hardening@...r.kernel.org>, <rodrigo.vivi@...el.com>,
        <mchehab@...nel.org>, <intel-gfx@...ts.freedesktop.org>,
        <luc.vanoostenryck@...il.com>, <vitor@...saru.org>
Subject: Re: [PATCH v5] overflow: Introduce overflows_type() and
 castable_to_type()



On 11/2/22 1:06 AM, Kees Cook wrote:
> On Sat, Oct 29, 2022 at 11:01:38AM +0300, Gwan-gyeong Mun wrote:
>>
>>
>> On 10/29/22 10:32 AM, Kees Cook wrote:
>>> On Sat, Oct 29, 2022 at 08:55:43AM +0300, Gwan-gyeong Mun wrote:
>>>> Hi Kees,
>>>
>>> Hi! :)
>>>
>>>> I've updated to v5 with the last comment of Nathan.
>>>> Could you please kindly review what more is needed as we move forward with
>>>> this patch?
>>>
>>> It looks fine to me -- I assume it'll go via the drm tree? Would you
>>> rather I carry the non-drm changes in my tree instead?
>>>
>> Hi!
>> Yes, I think it would be better to run this patch on your tree.
>> this patch moves the macro of i915 to overflows.h and modifies one part of
>> drm's driver code, but I think this part can be easily applied when merging
>> into the drm tree.
> 
> I've rebased it to the hardening tree, and it should appear in -next
> shortly:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?h=for-next/hardening&id=5904fcb776d0b518be96bca43f258db90f26ba9a
> 
Thanks for making this patch go forward.

G.G.