A vulnerability was found in Linux Kernel up to /5.15.4 and classified as problematic. This issue affects the function hugetlb_mcopy_atomic_pte of the component userfaultfd. The manipulation leads to Privilege Escalation.

The identification of this vulnerability is CVE-2021-47214. The attack can only be done within the local network. There is no exploit available.

It is recommended to upgrade the affected component.