[media] cx231xx-cards: fix NULL-deref at probe

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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: e0d3bafd02 ("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>

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Johan Hovold 2017-03-13 09:53:56 -03:00 • committed by Mauro Carvalho Chehab

parent eacb975b48

commit 0cd273bb5e

1 changed files with 40 additions and 5 deletions

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drivers/media/usb/cx231xx/cx231xx-cards.c

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