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USB: oti6858: fix use-after-free in TIOCMIWAIT
authorJohan Hovold <jhovold@gmail.com>
Tue, 19 Mar 2013 08:21:21 +0000 (09:21 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 21 Mar 2013 22:59:04 +0000 (15:59 -0700)
commit8edfdab37157d2683e51b8be5d3d5697f66a9f7b
treea530f904a5c3a74129a8449088b60ad0b24395a2tree | snapshot
parenta14430db686b8e459e1cf070a6ecf391515c9ab9commit | diff
USB: oti6858: 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/oti6858.c diff | blob | history
Domain: SCM / Uncategorized;