Dirty Frag (CVE-2026-43284, CVE-2026-43500): Frequently asked questions about this Linux kernel privilege escalation vulnerability chain

Weeks after the Copy Fail vulnerability was revealed, a new Linux kernel escalation vulnerability has been uncovered. Dubbed “Dirty Frag,” this flaw could allow a local user to gain root access on affected Linux distributions. Public exploit code has been released prior to patches being made available.