From: Johan Hovold <johan@kernel.org>
Date: Mon, 13 Mar 2017 12:39:01 +0000 (+0100)
Subject: isdn/gigaset: fix NULL-deref at probe
X-Git-Tag: v3.2.91~83
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cda8e22085fc1623f91bed76bb9c8b541fe019c0;p=pandora-kernel.git

isdn/gigaset: fix NULL-deref at probe

commit 68c32f9c2a36d410aa242e661506e5b2c2764179 upstream.

Make sure to check the number of endpoints to avoid dereferencing a
NULL-pointer should a malicious device lack endpoints.

Fixes: cf7776dc05b8 ("[PATCH] isdn4linux: Siemens Gigaset drivers -
direct USB connection")
Cc: Hansjoerg Lipp <hjlipp@web.de>

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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