kernel-hardening - Re: [PATCH v3] ARM: smp: add support for per-task stack canaries

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Message-ID: <CAGXu5j+FzZ7FuhLvfR6Lm_d7dN2Pc3qn7xaqV6HLp6xtGy+kGg@mail.gmail.com>
Date: Wed, 12 Dec 2018 13:26:26 -0800
From: Kees Cook <keescook@...omium.org>
To: Russell King <linux@...linux.org.uk>
Cc: kbuild test robot <lkp@...el.com>, Ard Biesheuvel <ard.biesheuvel@...aro.org>, kbuild-all@...org, 
	LKML <linux-kernel@...r.kernel.org>, 
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>, Emese Revfy <re.emese@...il.com>, 
	Arnd Bergmann <arnd@...db.de>, Laura Abbott <labbott@...hat.com>, 
	Kernel Hardening <kernel-hardening@...ts.openwall.com>
Subject: Re: [PATCH v3] ARM: smp: add support for per-task stack canaries

On Mon, Dec 10, 2018 at 2:34 PM Kees Cook <keescook@...omium.org> wrote:
>
> On Sun, Dec 9, 2018 at 2:38 AM Russell King - ARM Linux
> <linux@...linux.org.uk> wrote:
> >
> > On Sun, Dec 09, 2018 at 06:28:11PM +0800, kbuild test robot wrote:
> > > Hi Ard,
> > >
> > > I love your patch! Perhaps something to improve:
> >
> > Hi,
> >
> > This looks to me like a false warning - how can a patch touching arch
> > code affect the result of lib/test_ubsan.c?  Please can you double-
> > check this result?
>
> Yeah, no idea. Do you want me to toss this into the ARM patch queue?
> If not, I can this through the gcc-plugin tree.

Since the ARM changes are relatively small, and it adds a new plugin,
I'll take this via the gcc-plugins tree for -next now. Please yell if
this should be done differently.

Thanks!

-- 
Kees Cook

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