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Message-Id: <201403201945.s2KJjaN7016175@linus.mitre.org>
Date: Thu, 20 Mar 2014 15:45:36 -0400 (EDT)
From: cve-assign@...re.org
To: pmatouse@...hat.com
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com,
zoltan.kiss@...rix.com, mtsirkin@...hat.com
Subject: Re: CVE request -- kernel: net: potential information leak when ubuf backed skbs are skb_zerocopy()ied
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Hash: SHA1
> An information flaw was found in the way skb_zerocopy() copied skbs that
> are backed by userspace buffers (for example vhost-net and recent xen
> netback). Once the source skb is consumed, ubuf destructor is called and
> potentially releases the corresponding userspace buffers, which can then
> for example be repurposed, while the destination skb is still pointing
> to the them.
>
> This issue is similar to CVE-2014-0131.
>
> Upstream patch:
> https://lkml.org/lkml/2014/3/20/421
Use CVE-2014-2568.
- --
CVE assignment team, MITRE CVE Numbering Authority
M/S M300
202 Burlington Road, Bedford, MA 01730 USA
[ PGP key available through http://cve.mitre.org/cve/request_id.html ]
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