netdev - Re: [PATCH net 2/2] geneve: Fix races between socket add and release.

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Date:	Thu, 18 Dec 2014 12:38:53 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	jesse@...ira.com
Cc:	netdev@...r.kernel.org, azhou@...ira.com
Subject: Re: [PATCH net 2/2] geneve: Fix races between socket add and
 release.

From: Jesse Gross <jesse@...ira.com>
Date: Tue, 16 Dec 2014 18:25:32 -0800

> Currently, searching for a socket to add a reference to is not
> synchronized with deletion of sockets. This can result in use
> after free if there is another operation that is removing a
> socket at the same time. Solving this requires both holding the
> appropriate lock and checking the refcount to ensure that it
> has not already hit zero.
> 
> Inspired by a related (but not exactly the same) issue in the
> VXLAN driver.
> 
> Fixes: 0b5e8b8e ("net: Add Geneve tunneling protocol driver")
> CC: Andy Zhou <azhou@...ira.com>
> Signed-off-by: Jesse Gross <jesse@...ira.com>

Applied.
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