Messages in this thread | | | Date | Thu, 10 Jan 2013 14:39:02 -0800 (PST) | Subject | Re: [PATCH 3.8-rc] tuntap: refuse to re-attach to different tun_struct | From | David Miller <> |
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From: Stefan Hajnoczi <stefanha@redhat.com> 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 <stefanha@redhat.com>
Applied.
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