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(parent: 5295acf) | patch
USB: ch341: fix use-after-free in TIOCMIWAIT
authorJohan Hovold <jhovold@gmail.com>
Tue, 19 Mar 2013 08:21:12 +0000 (09:21 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 5 Apr 2013 16:26:04 +0000 (09:26 -0700)
commitf7b4fb66f05ea6c94c9a802465d5a1e39d086327
tree87f42f06b2280cde1768e07433e8d88769ec3853tree | snapshot
parent5295acf893d6aecc4b411ea083c442c665c9641bcommit | diff
USB: ch341: fix use-after-free in TIOCMIWAIT

commit fa1e11d5231c001c80a479160b5832933c5d35fb upstream.

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.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/serial/ch341.c diff | blob | history
Linux kernel for KaRo TX COM modules