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New "Bad Epoll" Linux Kernel Flaw Lets Unprivileged Users Gain Root, Hits Android

Published Jul 3, 2026

A newly disclosed Linux kernel flaw called Bad Epoll (CVE-2026-46242) lets an ordinary user with no special access take full control of a machine as root. It affects Linux desktops, servers, and Android, and a fix is out.

Bad Epoll sits in the same small stretch of kernel code where Anthropic's most powerful AI model, Mythos, recently found a different bug.

The AI caught one flaw and missed

Affected AI Products

anthropic ai model
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