CCT 361: Bad Epoll: Root Access in 6 Instructions

Send us Fan Mail A six-instruction timing glitch in the Linux kernel can be the difference between “low-priv user” and full root control, and that is why we dig into the Bad EPoll vulnerability from a CISSP-ready, manager-first angle. We start by grounding what the Linux kernel EPoll subsystem does, why it is foundational to high-performance I/O, and why “just disable it” is not a real option when you’re dealing with production Linux servers, desktops, cloud workloads, and Android devices. T...