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USB: ark3116: fix use-after-free in TIOCMIWAIT
authorJohan Hovold <jhovold@gmail.com>
Tue, 19 Mar 2013 08:21:11 +0000 (09:21 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 21 Mar 2013 22:59:02 +0000 (15:59 -0700)
commit5018860321dc7a9e50a75d5f319bc981298fb5b7
tree252272fa6a60fe30638bef7184a329ff65558148tree | snapshot
parente5b33dc9d16053c2ae4c2c669cf008829530364bcommit | diff
USB: ark3116: 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/ark3116.c diff | blob | history
Domain: SCM / Uncategorized;