Provide references for CVE-2021-47421.
Where can I find more information about CVE-2021-47421?
References are available at: https://git.kernel.org/stable/c/72e9a1bf9b722628c28092e0c2cd8717edd201dc, https://git.kernel.org/stable/c/248b061689a40f4fed05252ee2c89f87cf26d7d8.