Date: Wed, 8 Nov 2017 15:04:25 -0800 From: Nick Desaulniers <ndesaulniers@...gle.com> To: Kees Cook <keescook@...omium.org> Cc: "Tobin C. Harding" <me@...in.cc>, kernel-hardening@...ts.openwall.com, Josh Poimboeuf <jpoimboe@...hat.com> Subject: Re: [RFC] vla: add VLA macro and testing 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.
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