importantSYS.SOURCE: The Hacker News• 2026-07-04T01:10:01+05:30

Bad Epoll Kernel Flaw Grants Unprivileged Users Root Access on Linux and Android

#Linux Kernel#Privilege Escalation#Android#Race Condition

A critical Linux kernel flaw named Bad Epoll allows unprivileged users to escalate their privileges to root, affecting systems like Linux desktops, servers, and Android. This vulnerability stems from a race condition in kernel memory management and can be triggered from within sandboxed applications like Chrome's renderer.

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

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> DISCOVERY OF -YEAR-OLD LINUX KERNEL FLAW (CVE--) ALLOWS ROOT AND CONTAINER ESCAPE > CISA UPDATES KEV CATALOG WITH FOUR ACTIVELY EXPLOITED VULNERABILITIES IN ADOBE, JOOMLA, AND LANGFLOW > EXPLOITING PROMPT INJECTION IN GITHUB AGENTIC WORKFLOWS TO ACCESS PRIVATE REPOSITORIES > OPENAI ANNOUNCES PUBLIC LAUNCH OF GPT-. SOL, TERRA, AND LUNA THIS THURSDAY > IMPLEMENTING A MINIMAL ZFS NAS USING DEBIAN AND SAMBA WITHOUT COMMERCIAL NAS SOLUTIONS > GUIDE TO IMAGING AND PRESERVING 8-INCH, 5.25-INCH, 3.5-INCH, AND 3-INCH FLOPPY DISKS > ANALYSIS OF THE ACCURACY AND RELIABILITY OF THE ECONOMIST'S ECONOMIC REPORTING > OFFICIAL LINEAGEOS PROJECT STATISTICS AND METRICS > CHIPTUNE RADIO: CONTINUOUS STREAM OF 8-BIT AND TRACKER MUSIC > THE MATHEMATICAL BASIS AND APPLICATIONS OF BENFORD'S LAW IN REAL-WORLD DATASETS> DISCOVERY OF -YEAR-OLD LINUX KERNEL FLAW (CVE--) ALLOWS ROOT AND CONTAINER ESCAPE > CISA UPDATES KEV CATALOG WITH FOUR ACTIVELY EXPLOITED VULNERABILITIES IN ADOBE, JOOMLA, AND LANGFLOW > EXPLOITING PROMPT INJECTION IN GITHUB AGENTIC WORKFLOWS TO ACCESS PRIVATE REPOSITORIES > OPENAI ANNOUNCES PUBLIC LAUNCH OF GPT-. SOL, TERRA, AND LUNA THIS THURSDAY > IMPLEMENTING A MINIMAL ZFS NAS USING DEBIAN AND SAMBA WITHOUT COMMERCIAL NAS SOLUTIONS > GUIDE TO IMAGING AND PRESERVING 8-INCH, 5.25-INCH, 3.5-INCH, AND 3-INCH FLOPPY DISKS > ANALYSIS OF THE ACCURACY AND RELIABILITY OF THE ECONOMIST'S ECONOMIC REPORTING > OFFICIAL LINEAGEOS PROJECT STATISTICS AND METRICS > CHIPTUNE RADIO: CONTINUOUS STREAM OF 8-BIT AND TRACKER MUSIC > THE MATHEMATICAL BASIS AND APPLICATIONS OF BENFORD'S LAW IN REAL-WORLD DATASETS