May 2
CVE-2026-31431 (Copy Fail) - A Deep Dive into Linux Page Cache Exploitation
1. The Big Picture (Start Here) CVE-2026-31431 100% reliableevery distro since 2017container escape primitive732 bytes Most Linux LPEs need a race window or a kernel-specific offset. Copy Fail is a straight-line logic flaw — it needs neither. The same 732-byte Python script roots every Linux distribution shipped since 2017. One logic bug in authencesn, chained through AF_ALG and splice() into a…