A new Linux local privilege escalation vulnerability known as Fragnesia has been made public. The flaw is described as similar to Dirty Frag and involves an ESP/XFRM logic bug.
The vulnerability permits arbitrary byte writes into the kernel page cache of read-only files. This capability could allow local attackers to gain elevated privileges on affected systems.
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A critical Linux vulnerability known as CopyFail, tracked as CVE-2026-31431, allows attackers to gain root access on systems running kernels since 2017. Publicly released exploit code has heightened risks for data centers and personal devices. Ubuntu's infrastructure has been offline for over a day due to a DDoS attack, hampering security communications.
A security researcher has disclosed Dirty Frag, a new Linux kernel exploit that allows local users to gain root privileges. The flaw affects major distributions and remains unpatched on most systems despite earlier fixes for a similar issue.
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Qualys researchers have identified a logic flaw in the Linux kernel that enables unprivileged local users to disclose sensitive files and execute arbitrary commands as root.
A proposed update to the Linux scheduler aims to reduce frame time issues on aging computers during heavy CPU loads.
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Linux kernel maintainer Greg Kroah-Hartman presented a new Rust type at RustWeek 2026 that could prevent most security vulnerabilities. The approach focuses on handling untrusted data from userspace and hardware. It builds on existing Rust safety features already in the kernel.