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Copy Fail was the motivation for starting this research. In particular, xfrm-ESP Page-Cache Write in the Dirty Frag vulnerability chain shares the same sink as Copy Fail. However, it is triggered regardless of whether the algif_aead module is available. In other words, even on systems where the publicly known Copy Fail mitigation (algif_aead blacklist) is applied, your Linux is still vulnerable to Dirty Frag. 

If you didn't apply this for EWC, please check: Copy Fail (CVE‑2026‑31431) – Vulnerability Overview and Mitigation Guide for EWC images - European …

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The following command will reboot your machine.

Interim fix for Rocky 9

The following command will reboot your machine.

Interim fix for Ubuntu 22.04

Interim fix for Ubuntu 24.04