From: Oliver Neukum <oneukum@suse.com>
Date: Wed, 16 Mar 2016 12:26:17 +0000 (+0100)
Subject: USB: usb_driver_claim_interface: add sanity checking
X-Git-Tag: v3.2.80~69
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=79a575e829ba789c462c103c54fd9554f60079db;p=pandora-kernel.git

USB: usb_driver_claim_interface: add sanity checking

commit 0b818e3956fc1ad976bee791eadcbb3b5fec5bfd upstream.

Attacks that trick drivers into passing a NULL pointer
to usb_driver_claim_interface() using forged descriptors are
known. This thwarts them by sanity checking.

Signed-off-by: Oliver Neukum <ONeukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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