linux-kernel - Re: [PATCH v19 00/15] arm64: untag user pointers passed to the kernel

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Date:   Thu, 8 Aug 2019 15:33:00 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Kees Cook <keescook@...omium.org>
Cc:     Andrey Konovalov <andreyknvl@...gle.com>,
        Will Deacon <will@...nel.org>,
        Will Deacon <will.deacon@....com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Mark Rutland <mark.rutland@....com>, kvm@...r.kernel.org,
        Szabolcs Nagy <Szabolcs.Nagy@....com>,
        dri-devel@...ts.freedesktop.org,
        Kostya Serebryany <kcc@...gle.com>,
        Khalid Aziz <khalid.aziz@...cle.com>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        Felix Kuehling <Felix.Kuehling@....com>,
        Jacob Bramley <Jacob.Bramley@....com>,
        Leon Romanovsky <leon@...nel.org>, linux-rdma@...r.kernel.org,
        amd-gfx@...ts.freedesktop.org,
        Christoph Hellwig <hch@...radead.org>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Dave Martin <Dave.Martin@....com>,
        Evgeniy Stepanov <eugenis@...gle.com>,
        linux-media@...r.kernel.org, Kevin Brodsky <kevin.brodsky@....com>,
        Ruben Ayrapetyan <Ruben.Ayrapetyan@....com>,
        Ramana Radhakrishnan <Ramana.Radhakrishnan@....com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Linux Memory Management List <linux-mm@...ck.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Yishai Hadas <yishaih@...lanox.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Jens Wiklander <jens.wiklander@...aro.org>,
        Lee Smith <Lee.Smith@....com>,
        Alexander Deucher <Alexander.Deucher@....com>,
        enh <enh@...gle.com>, Robin Murphy <robin.murphy@....com>,
        Christian Koenig <Christian.Koenig@....com>,
        Luc Van Oostenryck <luc.vanoostenryck@...il.com>
Subject: Re: [PATCH v19 00/15] arm64: untag user pointers passed to the
 kernel

On Thu, 8 Aug 2019 14:12:19 -0700 Kees Cook <keescook@...omium.org> wrote:

> > The ones that are left are the mm ones: 4, 5, 6, 7 and 8.
> > 
> > Andrew, could you take a look and give your Acked-by or pick them up directly?
> 
> Given the subsystem Acks, it seems like 3-10 and 12 could all just go
> via Andrew? I hope he agrees. :)

I'll grab everything that has not yet appeared in linux-next.  If more
of these patches appear in linux-next I'll drop those as well.

The review discussion against " [PATCH v19 02/15] arm64: Introduce
prctl() options to control the tagged user addresses ABI" has petered
out inconclusively.  prctl() vs arch_prctl().