Provide references for CVE-2021-47557.
Where can I find more information about CVE-2021-47557?
References are available at: https://git.kernel.org/stable/c/ae2659d2c670252759ee9c823c4e039c0e05a6f2, https://git.kernel.org/stable/c/e25bdbc7e951ae5728fee1f4c09485df113d013c, https://git.kernel.org/stable/c/de6d25924c2a8c2988c6a385990cafbe742061bf.