From 16f2c3dd6aa662eee6f896d8240153d12aed5ba3 Mon Sep 17 00:00:00 2001
From: Tobias Herzog <t-herzog@gmx.de>
Date: Thu, 30 Mar 2017 22:15:10 +0200
Subject: [PATCH] cdc-acm: fix possible invalid access when processing
 notification

commit 1bb9914e1730417d530de9ed37e59efdc647146b upstream.

Notifications may only be 8 bytes long. Accessing the 9th and
10th byte of unimplemented/unknown notifications may be insecure.
Also check the length of known notifications before accessing anything
behind the 8th byte.

Signed-off-by: Tobias Herzog <t-herzog@gmx.de>
Acked-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>
---
Reading git-format-patch failed