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Copy Fail: New Linux bug enables Root via page‑cache corruption

  • Pierluigi Paganini--Securityaffairs.com
  • published date: 2026-04-30 18:23:30 UTC

Linux flaw CVE‑2026‑31431, ‘Copy Fail,’ lets any local user write four bytes into page cache files, enabling easy escalation to root on major distros. Xint Code researchers warn of a serious Linux flaw, tracked as CVE-2026-31431 (CVSS score of 7.8), dubbed Co…

Copy Fail: New Linux bug enables Root via pagecache corruption Xint Code researchers warn of a serious Linux flaw, tracked as CVE-2026-31431 (CVSS score of 7.8), dubbed Copy Fail. It lets any local,… [+4602 chars]