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USB: io_ti: fix use-after-free in TIOCMIWAIT
authorJohan Hovold <jhovold@gmail.com>
Tue, 19 Mar 2013 08:21:17 +0000 (09:21 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 21 Mar 2013 22:59:04 +0000 (15:59 -0700)
commit7b2459690584f239650a365f3411ba2ec1c6d1e0
treeb258f1f160f2b464b2ae4abca1a894f4ff2560cftree | snapshot (tar.gz zip)
parent333576255d4cfc53efd056aad438568184b36af6commit | diff
USB: io_ti: 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_ti.c diff | blob | blame | history