Resolved after 7 days 13 hours, affecting VPS Hosting, on May 8, 2026.
The linked repo is the public PoC and disclosure for Dirty Frag (a universal Linux local privilege escalation via page-cache corruption in xfrm-ESP and RxRPC paths). It affects most major distros with no upstream patches yet (as of May 2026), but has a simple module-blacklist mitigation. https://github.com/V4bel/dirtyfrag/tree/master *Quick Mitigation Reminder* Run this on each affected system: sh -c "printf 'install esp4 /bin/false\ninstall esp6 /bin/false\ninstall rxrpc /bin/false\n' > /etc/modprobe.d/dirtyfrag.conf; rmmod esp4 esp6 rxrpc 2>/dev/null; true" Then reboot or drop caches. This breaks IPsec and RxRPC/AFS usage if you rely on them. Watch for kernel updates from your distro.
Affected components
Update timeline
- identified May 08, 2026, 06:22 AM UTC
The linked repo is the public PoC and disclosure for Dirty Frag (a universal Linux local privilege escalation via page-cache corruption in xfrm-ESP and RxRPC paths). It affects most major distros with no upstream patches yet (as of May 2026), but has a simple module-blacklist mitigation. https://github.com/V4bel/dirtyfrag/tree/master *Quick Mitigation Reminder* Run this on each affected system: sh -c "printf 'install esp4 /bin/false\ninstall esp6 /bin/false\ninstall rxrpc /bin/false\n' > /etc/modprobe.d/dirtyfrag.conf; rmmod esp4 esp6 rxrpc 2>/dev/null; true" Then reboot or drop caches. This breaks IPsec and RxRPC/AFS usage if you rely on them. Watch for kernel updates from your distro.
- resolved May 15, 2026, 07:32 PM UTC
This incident has been resolved.
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