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Date:	Fri, 11 Jan 2013 16:38:34 +0800
From:	Jason Wang <>
To:	David Miller <>
Subject: Re: [PATCH 3.8-rc] tuntap: refuse to re-attach to different tun_struct

On 01/11/2013 01:12 PM, David Miller wrote:
> From: Jason Wang <>
> Date: Fri, 11 Jan 2013 09:29:20 +0800
>> On 01/11/2013 06:39 AM, David Miller wrote:
>>> From: Stefan Hajnoczi <>
>>> Date: Thu, 10 Jan 2013 08:59:48 +0100
>>>> Multiqueue tun devices support detaching a tun_file from its tun_struct
>>>> and re-attaching at a later point in time.  This allows users to disable
>>>> a specific queue temporarily.
>>>> ioctl(TUNSETIFF) allows the user to specify the network interface to
>>>> attach by name.  This means the user can attempt to attach to interface
>>>> "B" after detaching from interface "A".
>>>> The driver is not designed to support this so check we are re-attaching
>>>> to the right tun_struct.  Failure to do so may lead to oops.
>>>> Signed-off-by: Stefan Hajnoczi <>
>>> Applied.
>> Hi David:
>> Any chance that I can have a respin on this patch, there's still a bug
>> after this patch. Or I just can send a patch on top?
> If I've applied it, there is no reverting.

Get it, will send patch on top.

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