linux-kernel - Re: [PATCH v6 2/4] x86/ldt: Make modify

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Message-ID: <55BAAA46.20802@citrix.com>
Date:	Thu, 30 Jul 2015 23:50:46 +0100
From:	Andrew Cooper <andrew.cooper3@...rix.com>
To:	Andy Lutomirski <luto@...nel.org>, X86 ML <x86@...nel.org>,
	Borislav Petkov <bp@...en8.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	"security@...nel.org" <security@...nel.org>,
	Sasha Levin <sasha.levin@...cle.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	Jan Beulich <jbeulich@...e.com>,
	xen-devel <xen-devel@...ts.xen.org>, stable@...r.kernel.org
Subject: Re: [PATCH v6 2/4] x86/ldt: Make modify_ldt synchronous

On 30/07/2015 22:31, Andy Lutomirski wrote:
> Note to -stable maintainers: by itself, this patch makes a
> pre-existing Xen bug much easier to trigger; on a 32-bit Xen guest,
> the new ldt_gdt selftest is likely to OOPS.  Even without this
> patch, the test can OOPS, but it's much less likely to happen.  The
> Xen maintainers should have a fix for that issue shortly.

All Xen issues should be fixed by patch 1 now.

~Andrew
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