Provide references for CVE-2021-47139.
Where can I find more information about CVE-2021-47139?
References are available at: https://git.kernel.org/stable/c/a663c1e418a3b5b8e8edfad4bc8e7278c312d6fc, https://git.kernel.org/stable/c/0921a0620b5077796fddffb22a8e6bc635a4bb50, https://git.kernel.org/stable/c/a289a7e5c1d49b7d47df9913c1cc81fb48fab613.