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Message-ID: <CAGXu5jLwEh-_v_aVm35hSqbX3QzdFOy_AwEa4mmKM8JmWtiKGA@mail.gmail.com>
Date: Sat, 2 Mar 2019 07:43:24 -0800
From: Kees Cook <keescook@...omium.org>
To: Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc: Arnd Bergmann <arnd@...db.de>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Emese Revfy <re.emese@...il.com>, Alexander Popov <alex.popov@...ux.com>,
Laura Abbott <labbott@...hat.com>, Jann Horn <jannh@...gle.com>,
Alexander Potapenko <glider@...gle.com>, Kernel Hardening <kernel-hardening@...ts.openwall.com>
Subject: Re: [PATCH 1/2] gcc-plugins: structleak: Generalize to all variable types
On Sat, Mar 2, 2019 at 1:05 AM Ard Biesheuvel <ard.biesheuvel@...aro.org> wrote:
>
> On Thu, 28 Feb 2019 at 21:27, Arnd Bergmann <arnd@...db.de> wrote:
> > I get similar results with asan-stack=1 but without your plugin, only
> > the combination of the two has the explosive stack size growth.
I can look more closely, but I'm not sure it's entirely worth it:
these two may not make sense to build at the same time. (e.g. the
use-after-scope config was disallowed to work with this plugin.)
> > I can help analyze this further, but maybe you can have a look first,
> > there might be something obvious when you read the input to the
> > plugin.
> >
>
> Is this before or after use-after-scope was disabled entirely?
I was wondering the same thing, but I assumed it didn't matter: it
wasn't possible to use both before it was entirely disabled.
--
Kees Cook
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