Dirty Frag: Unpatched Linux vulnerability delivers root access

A week after Copy Fail, another Linux local privilege escalation vulnerability dubbed “Dirty Frag” has been revealed, along with a PoC exploit. What is Dirty Frag In effect, Dirty Frag refers to two flaws: A xfrm-ESP Page-Cache Write vulnerability (CVE-2026-43284, aka Copy Fail 2.0), now patched in the Linux kernel, affects the modules supporting one of the protocols used for IPsec A RxRPC Page-Cache Write vulnerability (CVE number reserved: CVE-2026-43500), currently unpatched, affects the modules … More →

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