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From: Linus Torvalds <torvalds@linux-foundation.org>
To: David Laight <David.Laight@aculab.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>,
	Kees Cook <keescook@chromium.org>,
	Al Viro <viro@zeniv.linux.org.uk>,
	Florian Weimer <fweimer@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Josh Poimboeuf <jpoimboe@redhat.com>,
	Randy Dunlap <rdunlap@infradead.org>,
	Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
	Ingo Molnar <mingo@kernel.org>, Ian Abbott <abbotti@mev.co.uk>,
	linux-input <linux-input@vger.kernel.org>,
	linux-btrfs <linux-btrfs@vger.kernel.org>,
	Network Development <netdev@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Kernel Hardening <kernel-hardening@lists.openwall.com>
Subject: Re: [PATCH v5 0/2] Remove false-positive VLAs when using max()
Date: Mon, 19 Mar 2018 16:29:28 -0700	[thread overview]
Message-ID: <CA+55aFwZnkR5uA5Oe19Xzox=+Bcab-j6-+a=XGqS8yokDU3Dog@mail.gmail.com> (raw)
In-Reply-To: <0e94e9582bec4373b5e21c612be179ac@AcuMS.aculab.com>

On Mon, Mar 19, 2018 at 2:43 AM, David Laight <David.Laight@aculab.com> wrote:
>
> Is it necessary to have the full checks for old versions of gcc?
>
> Even -Wvla could be predicated on very recent gcc - since we aren't
> worried about whether gcc decides to generate a vla, but whether
> the source requests one.

You are correct. We could just ignore the issue with old gcc versions,
and disable -Wvla rather than worry about it.

                  Linus

  reply	other threads:[~2018-03-19 23:29 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-16  4:25 [PATCH v5 0/2] Remove false-positive VLAs when using max() Kees Cook
2018-03-16  4:25 ` [PATCH v5 1/2] kernel.h: Introduce const_max_t() for VLA removal Kees Cook
2018-03-16  4:25 ` [PATCH v5 2/2] Remove false-positive VLAs when using max() Kees Cook
2018-03-19 10:45   ` Andrey Ryabinin
2018-03-16 11:47 ` [PATCH v5 0/2] " Florian Weimer
2018-03-16 17:29   ` Linus Torvalds
2018-03-16 17:32     ` Florian Weimer
2018-03-16 17:44     ` David Laight
2018-03-16 20:25       ` Linus Torvalds
2018-03-16 17:55     ` Al Viro
2018-03-16 18:14       ` Al Viro
2018-03-16 19:27       ` Linus Torvalds
2018-03-16 20:03         ` Miguel Ojeda
2018-03-16 20:14           ` Linus Torvalds
2018-03-16 20:19             ` Linus Torvalds
2018-03-17  0:48             ` Miguel Ojeda
2018-03-17  1:49             ` Miguel Ojeda
2018-03-16 20:12         ` Al Viro
2018-03-16 20:15           ` Linus Torvalds
2018-03-16 20:18             ` Al Viro
2018-03-17  7:27         ` Kees Cook
2018-03-17 18:52           ` Linus Torvalds
2018-03-17 20:07             ` Kees Cook
2018-03-17 22:55               ` Josh Poimboeuf
2018-03-20 23:23               ` Linus Torvalds
2018-03-20 23:26                 ` Linus Torvalds
2018-03-21  0:05                   ` Al Viro
2018-03-22 15:01                 ` Kees Cook
2018-03-22 15:13                   ` David Laight
2018-03-22 17:04                   ` Linus Torvalds
2018-03-18 21:13             ` Rasmus Villemoes
2018-03-18 21:33               ` Linus Torvalds
2018-03-18 22:59                 ` Rasmus Villemoes
2018-03-18 23:36                   ` Linus Torvalds
2018-03-19  9:43                     ` David Laight
2018-03-19 23:29                       ` Linus Torvalds [this message]
2018-03-20  3:10                         ` Arnd Bergmann

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