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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>
Thu, 21 Mar 2013 22:59:05 +0000 (15:59 -0700)
commitfc98ab873aa3dbe783ce56a2ffdbbe7c7609521a
tree8a59e188a28a92b02d424589fc039e80aa2b2890tree | snapshot
parent43a66b4c417ad15f6d2f632ce67ad195bdf999e8commit | diff
USB: ti_usb_3410_5052: 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/ti_usb_3410_5052.c diff | blob | history
Domain: System / Kernel;