Provide references for CVE-2021-47009.
Where can I find more information about CVE-2021-47009?
References are available at: https://git.kernel.org/stable/c/31c9a4b24d86cbb36ff0d7a085725a3b4f0138c8, https://git.kernel.org/stable/c/1c4031014106aff48e1e686e40101c31eab5d44c, https://git.kernel.org/stable/c/3e24fbd37e72e8a67b74991970fecc82d14f57af, https://git.kernel.org/stable/c/83a775d5f9bfda95b1c295f95a3a041a40c7f321.