DigiNews

Summary

Copy Fail describes a straight-line logic flaw enabling local privilege escalation across most Linux kernels via the AF_ALG API and page cache. A 732-byte Python PoC demonstrates root access on multiple distributions built between 2017 and the patch, prompting patch timelines and mitigation steps. The article outlines affected systems (Ubuntu 24.04 LTS, Amazon Linux 2023, RHEL 14.3, SUSE 16) and guidance for multi-tenant hosts, CI runners, and containers.