Proof-of-Concept Exploit Released for Linux 'Bad Epoll' Root Access Vulnerability

A proof-of-concept exploit has been released for a Linux kernel vulnerability that allows unprivileged users to gain root access on desktops, servers and Android phones, SecurityWeek reported. The flaw, tracked as CVE-2026-46242 and dubbed Bad Epoll, is a race condition combined with a use-after-free in the kernel's epoll event notification subsystem. Researcher Jaeyoung Chung published technical details and working exploit code after submitting the issue as a zero-day to Google's kernelCTF program. The PoC achieves root privileges