Provide references for CVE-2021-47438.
Where can I find more information about CVE-2021-47438?
References are available at: https://git.kernel.org/stable/c/4f7bddf8c5c01cac74373443b13a68e1c6723a94, https://git.kernel.org/stable/c/ed8aafea4fec9c654e63445236e0b505e27ed3a7, https://git.kernel.org/stable/c/94b960b9deffc02fc0747afc01f72cc62ab099e3.