linux-kernel - Re: [RFC][PATCH] fix move/migrate

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Message-ID: <4F4E8C46.3040005@linux.vnet.ibm.com>
Date:	Wed, 29 Feb 2012 12:36:22 -0800
From:	Dave Hansen <dave@...ux.vnet.ibm.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Christoph Lameter <cl@...ux.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [RFC][PATCH] fix move/migrate_pages() race on task struct

On 02/29/2012 12:31 PM, Andrew Morton wrote:
> What was the user-visible impact of the bug?

It'll probably oops dereferencing task->cred:

https://lkml.org/lkml/2012/2/23/302

Although I was never actually able to get it to trigger without some
code to enlarge the race window.

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