Steam Machine hands-on surfaces as long-running XFS flaw threatens RHEL systems

Steam Machine with SteamOS draws first hands-on coverage

Early impressions of Valve's Steam Machine running SteamOS Linux were published on 2026-07-23, marking one of the first substantive looks at the hardware paired with the Linux-based operating system. GamingOnLinux posted initial thoughts covering the device's form factor, software environment, and gaming performance expectations, treating the review as an early look rather than a finished verdict. The piece is positioned within the site's ongoing SteamOS coverage, signalling continued developer and enthusiast interest in a console-style PC built around the Linux gaming stack.

Nine-year-old XFS flaw grants local root on default RHEL installs

A local privilege-escalation vulnerability in the Linux kernel's XFS file system code was publicly disclosed on 2026-07-23, allowing unprivileged local users on default Red Hat Enterprise Linux installations to obtain root access. The flaw, tracked as CVE-2026-64600 and named RefluXFS, was reported by Qualys and summarised by The Hacker News. Researchers described the issue as stemming from a long-standing logic error in XFS permission handling that had survived multiple kernel release cycles.

Kernel maintainers clear a 432-CVE backlog

A separate context report from The Register on 2026-07-22 detailed that the Linux kernel security team published 432 CVEs across two days, a volume consistent with a long-stewing patch backlog rather than a sudden surge of new vulnerabilities. The disclosure pace provides backdrop for the RefluXFS finding, illustrating how older, dormant kernel bugs continue to surface as reviewers re-examine code paths.

Vivaldi adoption and Linux desktop ecosystem

In a prior-day piece, ZDNET chronicled a user migrating to Vivaldi as their default web browser on Linux, citing interface customisation and built-in tools as deciding factors. While not a security or platform release, the write-up reflects ongoing diversification of desktop software choices available to Linux users beyond Chromium and Firefox defaults.

Next verifiable milestones

Upcoming checkpoints include Red Hat's advisory package and patched kernel builds addressing CVE-2026-64600, broader Linux distribution backports of XFS fixes, and continued SteamOS performance testing as more reviewers receive Steam Machine hardware.