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Message-ID: <20171112235451.GB11398@eros>
Date: Mon, 13 Nov 2017 10:54:51 +1100
From: "Tobin C. Harding" <me@...in.cc>
To: Nick Desaulniers <ndesaulniers@...gle.com>
Cc: Kees Cook <keescook@...omium.org>, kernel-hardening@...ts.openwall.com,
Josh Poimboeuf <jpoimboe@...hat.com>
Subject: Re: [RFC] vla: add VLA macro and testing
On Wed, Nov 08, 2017 at 03:04:25PM -0800, Nick Desaulniers wrote:
> On Wed, Nov 8, 2017 at 2:58 PM, Kees Cook <keescook@...omium.org> wrote:
> > While I'd certainly like to see SOME kind of sanity checking for VLAs,
> > my preference would be to entirely eliminate them at get -Werror=vla
> > added to the Makefile. Even Linus has expressed irritation over the
> > idea of VLAs in structs in the past:
> >
> > https://lkml.org/lkml/2013/9/23/500
>
> VLAIS makes it difficult (impossible) to compile allyesconfig with
> clang. VLA on the stack is fine, but VLAIS is not.
What is VLAIS please? I don't get any results when grepping the kernel
tree.
$ git grep VLAIS
thanks,
Tobin.
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