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    SubjectRe: [PATCH 1/2] USB: serial: console: fix use-after-free on disconnect
    On Wed, Oct 04, 2017 at 11:01:12AM +0200, Johan Hovold wrote:
    > A clean-up patch removing removing two redundant NULL-checks from the
    > console disconnect handler inadvertently also removed a third check.
    > This could lead to the struct usb_serial being prematurely freed by the
    > console code when a driver accepts but does not register any ports for
    > an interface which also lacks endpoint descriptors.
    >
    > Fixes: 0e517c93dc02 ("USB: serial: console: clean up sanity checks")
    > Cc: stable <stable@vger.kernel.org> # 4.11
    > Reported-by: Andrey Konovalov <andreyknvl@google.com>
    > Signed-off-by: Johan Hovold <johan@kernel.org>

    Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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