Choosing a filesystem (FS) is not a matter of religion, it is an engineering calculation. There is no such thing as the “best” FS, only the one that optimally fits a specific workload. Let’s break down the main players in the GNU/Linux arena as of today.
Over 20 years in the terminal, we’ve seen distributions born, die, and morph into corporate monsters. Today, the Linux market is no longer just a “zoo”, it’s a well-structured ecosystem where every tool is purpose-built for its specific task.
No sooner had we discussed the “May patches” and the prospects of AI-driven bug hunting than yet another real-world case emerged. A new critical vulnerability, CIFSwitch, has been discovered, allowing for Local Privilege Escalation (LPE) to root.
Today, operating systems powered by the Linux kernel run the world: from supercomputers and cloud giants to Internet of Things (IoT) ecosystems and critical security infrastructure. However, within engineering and academic circles, the paradigm commonly known as “Linux” carries a more precise, fundamental name - GNU/Linux.
In one of our previous publications, we analyzed the May vulnerabilities Copy Fail and Dirty Frag in detail, which allowed attackers to gain root privileges on Linux servers. However, behind the scenes of these incidents lies a much larger trend that is fundamentally reshaping the cybersecurity industry right now, in 2026.