Provide references for CVE-2021-4439.
Where can I find more information about CVE-2021-4439?
References are available at: https://git.kernel.org/stable/c/e8b8de17e164c9f1b7777f1c6f99d05539000036, https://git.kernel.org/stable/c/24219a977bfe3d658687e45615c70998acdbac5a, https://git.kernel.org/stable/c/9b6b2db77bc3121fe435f1d4b56e34de443bec75, https://git.kernel.org/stable/c/7d91adc0ccb060ce564103315189466eb822cc6a, https://git.kernel.org/stable/c/285e9210b1fab96a11c0be3ed5cea9dd48b6ac54, https://git.kernel.org/stable/c/7f221ccbee4ec662e2292d490a43ce6c314c4594, https://git.kernel.org/stable/c/cc20226e218a2375d50dd9ac14fb4121b43375ff, https://git.kernel.org/stable/c/1f3e2e97c003f80c4b087092b225c8787ff91e4d.