linux-kernel - Re: [PATCH] kasan: push back KASAN

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: <20190718162310.GG5761@sirena.org.uk>
Date:   Thu, 18 Jul 2019 17:23:10 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Andrey Ryabinin <aryabinin@...tuozzo.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Qian Cai <cai@....pw>, Vasily Gorbik <gor@...ux.ibm.com>,
        Andrey Konovalov <andreyknvl@...gle.com>,
        linux-kernel@...r.kernel.org, clang-built-linux@...glegroups.com
Subject: Re: [PATCH] kasan: push back KASAN_STACK detection to clang-10

On Thu, Jul 18, 2019 at 07:18:28PM +0300, Andrey Ryabinin wrote:
> On 7/18/19 5:14 PM, Arnd Bergmann wrote:

> > asan-stack mode still uses dangerously large kernel stacks of
> > tens of kilobytes in some drivers, and it does not seem that anyone
> > is working on the clang bug.

> > -	default !(CLANG_VERSION < 90000)
> > +	default !(CLANG_VERSION < 100000)

> Wouldn't be better to make this thing for any clang version? And only when the bug is
> finally fixed, specify the clang version which can enable this safely.

Especially if nobody is currently working on it.

Download attachment "signature.asc" of type "application/pgp-signature" (489 bytes)