Provide references for CVE-2021-47391.
Where can I find more information about CVE-2021-47391?
References are available at: https://git.kernel.org/stable/c/9a085fa9b7d644a234465091e038c1911e1a4f2a, https://git.kernel.org/stable/c/03d884671572af8bcfbc9e63944c1021efce7589, https://git.kernel.org/stable/c/305d568b72f17f674155a2a8275f865f207b3808.