From: Oliver Neukum <oneukum@suse.com>
Date: Thu, 31 Mar 2016 16:04:24 +0000 (-0400)
Subject: USB: mct_u232: add sanity checking in probe
X-Git-Tag: v3.2.80~50
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b323f6de337f4904272172958322b5f2bf50984d;p=pandora-kernel.git

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

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>
[bwh: Backported to 3.2: put the check in mct_u232_startup(), which already
 has a 'serial' variable]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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