[media] cx231xx-audio: fix NULL-deref at probe
authorJohan Hovold <johan@kernel.org>
Mon, 13 Mar 2017 12:53:58 +0000 (09:53 -0300)
committerMauro Carvalho Chehab <mchehab@s-opensource.com>
Mon, 10 Apr 2017 10:34:46 +0000 (07:34 -0300)
commit65f921647f4c89a2068478c89691f39b309b58f7
tree9c94ea4fb91f3917f9e407e8b5a8e3c1da359316
parentfff1abc4d54e469140a699612b4db8d6397bfcba
[media] cx231xx-audio: fix NULL-deref at probe

Make sure to check the number of endpoints to avoid dereferencing a
NULL-pointer or accessing memory beyond the endpoint array should a
malicious device lack the expected endpoints.

Fixes: e0d3bafd0258 ("V4L/DVB (10954): Add cx231xx USB driver")

Cc: stable <stable@vger.kernel.org> # 2.6.30
Cc: Sri Deevi <Srinivasa.Deevi@conexant.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
drivers/media/usb/cx231xx/cx231xx-audio.c