linux-kernel - Re: [tip:x86/urgent] x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels

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]

Date:	Mon, 12 May 2014 09:52:15 -0700
From:	"H. Peter Anvin" <hpa@...ux.intel.com>
To:	Josh Boyer <jwboyer@...oraproject.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
CC:	Sven Joachim <svenjoac@....de>,
	Alexandre Julliard <julliard@...ehq.org>,
	Brian Gerst <brgerst@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	stable <stable@...r.kernel.org>, info@...altwit.be
Subject: Re: [tip:x86/urgent] x86-64, modify_ldt: Ban 16-bit segments on 64-bit
 kernels

On 05/12/2014 06:16 AM, Josh Boyer wrote:
> On Wed, May 7, 2014 at 12:57 PM, Linus Torvalds
> <torvalds@...ux-foundation.org> wrote:
>> On Wed, May 7, 2014 at 2:18 AM, Sven Joachim <svenjoac@....de> wrote:
>>>
>>> It seems that at least some 32-bit programs are also broken, since after
>>> upgrading the kernel to 3.14.3 I can no longer start my old chess
>>> database program:
> 
> Now that this has hit 3.14.y stable, we have another report of this
> commit breaking something in Wine, this time MS Access 2000:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=1096725 (reporter now CC'd)
> 
>> So for backporting (and for 3.15) maybe this (TOTALLY UNTESTED) patch
>> would be acceptable.
> 
> I don't think your patch went anywhere.  I have no idea if you want to
> push that or revert or just tell people to run old apps in 32-bit
> guests at this point.  Just forwarding on the information.
> 

Linus is off the net at the moment.  Someone needs to take his patch and
test it/clean it up.

	-hpa


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/