Tag: linux-kernel
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How I Audited 41 Ubuntu Servers for CVE-2026-31431 “Copy Fail” — and What I Found
CVE-2026-31431 “Copy Fail” is a HIGH severity Linux kernel vulnerability that lets any local user gain root. I audited all 41 of my Ubuntu servers, found one actively exposed, applied the mitigation, and checked for compromise. Here’s the full technical breakdown.