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Message-ID: <20121113152119.GF31022@suse.de>
Date: Tue, 13 Nov 2012 16:21:19 +0100
From: Marcus Meissner <meissner@...e.de>
To: oss-security@...ts.openwall.com
Subject: Re: CVE request -- Linux kernel: mm/hotplug:
failure in propagating hot-added memory to other nodes
On Sun, Nov 11, 2012 at 12:19:13AM -0700, Kurt Seifried wrote:
> On 11/10/2012 02:36 PM, Petr Matousek wrote:
> > A NULL pointer dereference flaw has been found in the way a new
> > node's hot-added memory is propagated to other nodes zonelists. An
> > unprivileged local user can use this flaw to crash the system.
> >
> > Upstream fix:
> > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=08dff7b7d629807dbb1f398c68dd9cd58dd657a1
> >
> > References: https://bugzilla.redhat.com/show_bug.cgi?id=875374
> >
> > Thanks,
>
> Please use CVE-2012-5517 for this issue.
Our Mel Gorman wonders how this is a security issue.
A local attacker would need to wait for the administrator to hot-add
memory, which seems unlikely on first thought?
Ciao, Marcus
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