Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.12.11

Description A use-after-free issue was discovered in the nfs4 init client() function. The actual impact and attack plausibility have not yet been proven. This issue was introduced in version v4.13 and is fixed in Linux Kernel version v5.12.11.

Recommendations For versions prior to v5.12.11, update to Linux Kernel version v5.12.11 or later to resolve the issue. As a temporary workaround, consider restricting access to the nfs4 init client() function until a patch is available.