tree f6f29bc379f467384be67e4606a42477e69d5946
parent 79becfb7dbd491ad4cfb01d471c9c821bdb5817d
author Badhri Jagan Sridharan <Badhri@google.com> 1472589235 -0700
committer Badhri Jagan Sridharan <badhri@google.com> 1472606136 +0000

UPSTREAM: USB: mct_u232: add sanity checking in probe

commit 4e9a0b05257f29cf4b75f3209243ed71614d062e upstream.

An attack using the lack of sanity checking in probe is known. This
patch checks for the existence of a second port.

CVE-2016-3136
BUG: 28242610
Signed-off-by: Oliver Neukum <ONeukum@suse.com>
[johan: add error message ]
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Badhri Jagan Sridharan <Badhri@google.com>
Change-Id: I284ad648c2087c34a098d67e0cc6d948a568413c
(cherry picked from commit 0cd0c38fa2cef1cad28a2a9ecf9a60cff4cd4038)