ath9k_htc: fix NULL-deref at probe
authorJohan Hovold <johan@kernel.org>
Mon, 13 Mar 2017 12:44:20 +0000 (13:44 +0100)
committerBen Hutchings <ben@decadent.org.uk>
Sat, 26 Aug 2017 01:13:58 +0000 (02:13 +0100)
commitaf4b41c56261592cd90c3ea196f6077c466fdd7a
tree2ccba3510332ed8e2a29bf592200f693bafaa1f2
parent16f2c3dd6aa662eee6f896d8240153d12aed5ba3
ath9k_htc: fix NULL-deref at probe

commit ebeb36670ecac36c179b5fb5d5c88ff03ba191ec upstream.

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: 36bcce430657 ("ath9k_htc: Handle storage devices")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
drivers/net/wireless/ath/ath9k/hif_usb.c