tree e37179e47b386c5722046d1de7650990d2089baf
parent d5823511c0f8719a39e72ede1bce65411ac653b7
author Johan Hovold <johan@kernel.org> 1489409635 -0300
committer Mauro Carvalho Chehab <mchehab@s-opensource.com> 1491820258 -0300

[media] usbvision: 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: 2a9f8b5d25be ("V4L/DVB (5206): Usbvision: set alternate interface
modification")

Cc: stable <stable@vger.kernel.org>     # 2.6.21
Cc: Thierry MERLE <thierry.merle@free.fr>
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>