pedit COW kernel local privilege escalation vulnerability mitigations

Mitigations are available for the Linux vulnerability with CVE ID CVE-2026-46331 . The CVE ID was assigned on June 16 2026 and highlighted as a local privilege escalation (LPE) vulnerability on June 26, 2026. Known as “pedit COW”, this vulnerability affects multiple Linux distributions, including all Ubuntu releases starting with Bionic Beaver 18.04 LTS.