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(parent: 7b24596) | patch
USB: mct_u232: fix use-after-free in TIOCMIWAIT
authorJohan Hovold <jhovold@gmail.com>
Tue, 19 Mar 2013 08:21:18 +0000 (09:21 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 21 Mar 2013 22:59:04 +0000 (15:59 -0700)
commitcf1d24443677a0758cfa88ca40f24858b89261c0
tree03cb96d63c95169454ecc5e5ae12be8aaf97b52dtree | snapshot (tar.gz zip)
parent7b2459690584f239650a365f3411ba2ec1c6d1e0commit | diff
USB: mct_u232: 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/mct_u232.c diff | blob | blame | history