linux-kernel - Re: [ 05/48] x86_64, switch_to(): Load TLS descriptors before switching DS and ES

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: <1431723223.6315.124.camel@decadent.org.uk>
Date:	Fri, 15 May 2015 21:53:43 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Willy Tarreau <w@....eu>, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org, Andy Lutomirski <luto@...capital.net>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [ 05/48] x86_64, switch_to(): Load TLS descriptors before
 switching DS and ES

On Fri, 2015-05-15 at 17:53 +0200, Andi Kleen wrote:
> > 
> > v2.6.32.65:arch/x86/kernel/process_64.c:425:    /* Must be after DS reload */
> > 
> > If this comment is correct then the patch will cause a regression for
> > FPU state management.  The comment was introduced by:
> 
> Yes I already stated before that these super-risky patches
> are not stable material.
[...]

Which other patches do you include in that?

Ben.

-- 
Ben Hutchings
It is impossible to make anything foolproof because fools are so ingenious.

Download attachment "signature.asc" of type "application/pgp-signature" (812 bytes)