linux-hardening - Re: [PATCH] kbuild: Switch from -Wvla to -Wvla-larger-than=0

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <202504210940.8B3E06C4F7@keescook>
Date: Mon, 21 Apr 2025 09:43:06 -0700
From: Kees Cook <kees@...nel.org>
To: Christoph Hellwig <hch@....de>
Cc: Masahiro Yamada <masahiroy@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andrey Ryabinin <ryabinin.a.a@...il.com>,
	Alexander Potapenko <glider@...gle.com>,
	Andrey Konovalov <andreyknvl@...il.com>,
	Dmitry Vyukov <dvyukov@...gle.com>,
	Vincenzo Frascino <vincenzo.frascino@....com>,
	Nathan Chancellor <nathan@...nel.org>,
	Nicolas Schier <nicolas.schier@...ux.dev>,
	Nick Desaulniers <nick.desaulniers+lkml@...il.com>,
	Bill Wendling <morbo@...gle.com>,
	Justin Stitt <justinstitt@...gle.com>, kasan-dev@...glegroups.com,
	linux-mm@...ck.org, linux-kbuild@...r.kernel.org,
	llvm@...ts.linux.dev, linux-kernel@...r.kernel.org,
	linux-hardening@...r.kernel.org, linux-sparse@...r.kernel.org,
	luc.vanoostenryck@...il.com
Subject: Re: [PATCH] kbuild: Switch from -Wvla to -Wvla-larger-than=0

On Mon, Apr 21, 2025 at 11:12:33AM +0200, Christoph Hellwig wrote:
> Looks good:
> 
> Reviewed-by: Christoph Hellwig <hch@....de>
> 
> Note that sparse currently also can't cope with VLAs including the
> prototype syntax, which also needs addressing.

Hm, it looks like it's been over a year since a commit to the sparse
git.

Luc, are function prototypes with VLAs likely to be supported by sparse
soon?

-- 
Kees Cook