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

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Message-ID: <CAGXu5j+WLpjNq0p41eu+VeZxV3yeTB19uNYxCQevbcDYkv7gJw@mail.gmail.com>
Date:   Mon, 10 Dec 2018 14:34:49 -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 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.

-Kees

-- 
Kees Cook