isdn/gigaset: fix NULL-deref at probe
authorJohan Hovold <johan@kernel.org>
Mon, 13 Mar 2017 12:39:01 +0000 (13:39 +0100)
committerDavid S. Miller <davem@davemloft.net>
Mon, 13 Mar 2017 19:28:40 +0000 (12:28 -0700)
commit68c32f9c2a36d410aa242e661506e5b2c2764179
treef453aca2c01f08f046250812a61fa94de38c5ea7
parent67e194007be08d071294456274dd53e0a04fdf90
isdn/gigaset: fix NULL-deref at probe

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: stable <stable@vger.kernel.org> # 2.6.17
Cc: Hansjoerg Lipp <hjlipp@web.de>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/isdn/gigaset/bas-gigaset.c