Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.16.20

Description A potential issue exists in the NFSv4.2 implementation, specifically in the nfs42 proc copy notify() function, where reference count leaks may occur. The actual impact and attack plausibility of this issue have not yet been proven.

Recommendations For Linux Kernel versions prior to v5.16.20, update to version v5.16.20 or later to resolve the issue. As a temporary workaround, consider restricting access to the nfs42 proc copy notify() function until a patch is available.