DirtyClone vulnerability allows local root escalation via Linux kernel packet cloning (opens in new tab)

A newly discovered Linux kernel vulnerability, tracked as CVE-2026-43503 and dubbed DirtyClone, enables local users to achieve root privileges. This flaw belongs to the DirtyFrag family of vulnerabilities and centers on the corruption of file-backed memory. By leveraging cloned network packets, an attacker can bypass standard permission boundaries to modify sensitive system data. <a href="