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USB: ark3116: fix use-after-free in TIOCMIWAIT
authorJohan Hovold <jhovold@gmail.com>
Tue, 19 Mar 2013 08:21:11 +0000 (09:21 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 21 Mar 2013 22:59:02 +0000 (15:59 -0700)
commitbdd48bf0eee9e7413cdc77ff683c0c498f2df509
tree252272fa6a60fe30638bef7184a329ff65558148tree | snapshot
parentae15dc69d59bbfc5d464bd9c78df61fca6ce07c1commit | diff
USB: ark3116: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/serial/ark3116.c diff | blob | history
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