A sysadmin has developed a tool called 'ModuleJail' designed to automatically blacklist unused kernel modules. This innovation aims to mitigate recent Linux kernel privilege escalation vulnerabilities, such as 'Copy Fail' and 'Dirty Frag'. The system operates by identifying and disabling modules that are not actively in use, thereby reducing the attack surface. AI
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RANK_REASON The cluster describes a new tool created by a sysadmin to address existing vulnerabilities, rather than a novel research breakthrough or a major industry-wide release.