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    XOA vulnerabilty to "copy fail" and "dirty frag" bug

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    • rvreugdeR Online
      rvreugde
      last edited by rvreugde

      There is currently a lot of discussion about the "Copy Fail" vulnerability and the "Dirty Frag" vulnerability.

      Copy Fail: https://thehackernews.com/2026/05/cisa-adds-actively-exploited-linux-root.html
      Dirty Frag: https://thehackernews.com/2026/05/linux-kernel-dirty-frag-lpe-exploit.html

      Are the XOA appliance (which is based on Debian 12) and XCP-ng vulnerable to these issues?

      Should we take any additional mitigation measures?

      From what I understand, most Linux distributions already provide a kernel patch for the Copy Fail vulnerability. However, at the time of writing, patches for Dirty Frag do not yet seem to be widely available.

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      • bleaderB Online
        bleader Vates 🪐 XCP-ng Team
        last edited by

        Copy Fail is documented in VSA-2026-013, we don't have one for Dirty Frag yet as we're still investigating XCP-ng side regarding it.

        For XOA, unattended updates should have installed the patched debian kernel, you just need to reboot it.

        Debian security tracker states they are both fixed:

        • https://security-tracker.debian.org/tracker/CVE-2026-31431
        • https://security-tracker.debian.org/tracker/CVE-2026-43284
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