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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>
Fri, 5 Apr 2013 16:26:03 +0000 (09:26 -0700)
commit7f34a2376903eb9b72447da235fc103ac6d16a79
treed0ddb678a49b661ef1097992102d9a785193b083tree | snapshot
parentdfa7981463bbf902057c7c2b36c1e9e98f1651c4commit | diff
USB: io_ti: fix use-after-free in TIOCMIWAIT

commit 7b2459690584f239650a365f3411ba2ec1c6d1e0 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/io_ti.c diff | blob | history
unionfs2-2.6.39.y