[$] LWN.net Weekly Edition for June 19, 2025

Inside this week’s LWN.net Weekly Edition: Front: GNOME a11y; hierarchical scheduler; CoMaps; GPU restore; FAIR.pm; buffered I/O writeback; NFS; Lustre Briefs: Rocky Linux 10.0; Git 2.50; KDE Plasma 6.4; Kubernetes Slack; Radicle Desktop; Quote; … Announcements: Newsletters, conferences, security updates, patches, and more.

Two WormGPT Clones That Use Grok and Mixtral Found in Underground Forum

Security researchers at Cato Network have discovered two new WormGPT variants that repurpose commercial AI models — xAI’s Grok and Mistral’s Mixtral — to generate malicious content, reviving a tool once believed to be defunct. The newly discovered versions, named keanu-WormGPT and xzin0vich-WormGPT, were identified by the company’s CTRL Threat Research Team. Found on BreachForums,

[$] The hierarchical constant bandwidth server scheduler

The POSIX realtime model, which is implemented in the Linux kernel, can ensure that a realtime process obtains the CPU time it needs to get its job done. It can be less effective, though, when there are multiple realtime processes competing for the available CPU resources. The hierarchical constant bandwidth server patch series, posted by

Owasp Nettacker: Open-source Scanner for Recon and Vulnerability Assessment

OWASP Nettacker is a free, open-source tool designed for network scanning, information gathering, and basic vulnerability assessment. Built and maintained by the OWASP community, Nettacker helps security pros automate common tasks like port scanning, service detection, and brute-force attacks. It offers a controlled and extensible framework for running these tests. The post Owasp Nettacker: Open-source