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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