Input: ims-pcu - validate number of endpoints before using them
authorJohan Hovold <johan@kernel.org>
Thu, 16 Mar 2017 18:36:13 +0000 (11:36 -0700)
committerDmitry Torokhov <dmitry.torokhov@gmail.com>
Thu, 16 Mar 2017 20:56:51 +0000 (13:56 -0700)
commit1916d319271664241b7aa0cd2b05e32bdb310ce9
treed7bee9832221492a16fe367ef9b804c53172981a
parentac2ee9ba953afe88f7a673e1c0c839227b1d7891
Input: ims-pcu - validate number of endpoints before using them

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

Fixes: 628329d52474 ("Input: add IMS Passenger Control Unit driver")
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable@vger.kernel.org # 3.10
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
drivers/input/misc/ims-pcu.c