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USB: ti_usb_3410_5052: fix use-after-free in TIOCMIWAIT
authorJohan Hovold <jhovold@gmail.com>
Tue, 19 Mar 2013 08:21:26 +0000 (09:21 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 5 Apr 2013 16:26:05 +0000 (09:26 -0700)
commit0a9f03287a9290fb61aa74604b4f8fd7fdd3b64e
treef42161ab09751ec08ec4cc8ebc0bd36319db56cetree | snapshot
parentb8574ededb2102a6fc85e76793bd13e3840fdb37commit | diff
USB: ti_usb_3410_5052: fix use-after-free in TIOCMIWAIT

commit fc98ab873aa3dbe783ce56a2ffdbbe7c7609521a upstream.

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.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/serial/ti_usb_3410_5052.c diff | blob | history
Linux kernel for KaRo TX COM modules