cx231xx-cards: fix NULL-deref on missing association descriptor

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commit 6c3b047fa2 upstream.

Make sure to check that we actually have an Interface Association
Descriptor before dereferencing it during probe to avoid dereferencing a
NULL-pointer.

Fixes: e0d3bafd02 ("V4L/DVB (10954): Add cx231xx USB driver")
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Johan Hovold 2017-09-21 05:40:18 -03:00 • committed by Greg Kroah-Hartman

parent bcd2dc9e32

commit 38c043d26c

1 changed files with 1 additions and 1 deletions

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

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