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(parent: 71ccb9b) | patch
USB: io_edgeport: fix use-after-free in TIOCMIWAIT
authorJohan Hovold <jhovold@gmail.com>
Tue, 19 Mar 2013 08:21:16 +0000 (09:21 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 21 Mar 2013 22:59:03 +0000 (15:59 -0700)
commit333576255d4cfc53efd056aad438568184b36af6
treecdd10d402b9f3808198c29feae37cda772530bd0tree | snapshot (tar.gz zip)
parent71ccb9b01981fabae27d3c98260ea4613207618ecommit | diff
USB: io_edgeport: 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/io_edgeport.c diff | blob | blame | history