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As the 2025 Linux Storage, Filesystem, Memory-Management, and BPF Summit (LSFMM+BPF) approaches, the density of memory-management patches on the mailing lists has increased. Included among those are patches aimed at improving the reliability and performance of huge-page allocation, implementing page promotion on tiered-memory systems, adding a different approach to deduplicating memory, and replacing the BPF memory allocator. Read on for an overview of each.

Security updates have been issued by Debian (php7.4, python-django, and python3.9), Fedora (bluez, iwd, libell, and radare2), Mageia (chromium-browser-stable, mosquitto, tomcat, tomcat packages, and vim), Oracle (firefox, grub2, python3, thunderbird, and webkit2gtk3), Red Hat (fence-agents, php:7.4, and python-jinja2), SUSE (assimp-devel, crane, ffmpeg-4, freetype2, helm, kernel, kured, python-Django, python-Jinja2, python311-Django4, and tomcat), and Ubuntu (alpine, djoser, libxslt, postgresql-9.5, and valkey).

Inside this week's LWN.net Weekly Edition: Front: Oxidizr; Spectre mitigations; Frozen pages; Mapcount madness; Open-source risks; /e/OS. Briefs: Supply chain attacks; SystemRescue 12.00; Casual Make; GIMP 3.0; Git 2.49.0; GNOME 48; PeerTube 7.1; Quotes; ... Announcements: Newsletters, conferences, security updates, patches, and more.

GNOME 48 ("Bengaluru") has been released. As usual, this release includes a number of new features and enhancements including support for shortcuts in the Orca screen reader on Wayland, new fonts, addition of image editing to Image Viewer, and more. GNOME 48 includes a number of notable performance improvements. The most significant of these is the introduction of dynamic triple buffering. This change has undergone...

Modern CPUs all have multiple hardware vulnerabilities that the kernel needs to mitigate; the 6.13 kernel has workarounds for 14 security-sensitive CPU bugs just on x86_64. Several of those have multiple variants, or multiple mitigations that apply on different microarchitectures. There are different kernel command-line options for each of these mitigations, which leads to a confusing situation for users trying to figure out how...

Version 7.1 of PeerTube, a tool for sharing videos online, has been released. Notable features in this release include improved support for the Podcast 2.0 standard, better playback stability, and a new view protocol enabled by default to allow PeerTube to handle more simultaneous viewers. See the release notes for more details.

/e⁠/⁠OS is a privacy-centric, open-source mobile operating system that has primarily been targeted at mobile phones, with only a few community supported images available for tablet devices. In December, Murena—a company that sells devices with /⁠e⁠/⁠OS preinstalled—announced that /⁠e⁠/⁠OS now officially supports tablets as well, starting with the Pixel tablet. The user experience is close enough to mainstream alternatives to make it attractive, but...

A security company called Fenrisk has posted an overview of a pair of claimed successful supply-chain attacks on the Fedora and openSUSE distributions. We successfully identified vulnerabilities in the Pagure, the Git forge used by Fedora to store their package definitions. We also compromised Open Build Service, the all-in-one toolchain used and developed by the openSUSE project for compilation and packaging. Their exploitation by...

Security updates have been issued by Debian (tzdata), Fedora (expat and tigervnc), Red Hat (kernel, kernel-rt, thunderbird, and webkit2gtk3), SUSE (dcmtk), and Ubuntu (restrictedpython and uriparser).

If all goes according to plan, the Ubuntu project will soon be replacing many of the traditional GNU utilities with implementations written in Rust, such as those created by the uutils project, which we covered in February. Wholesale replacement of core utilities at the heart of a Linux distribution is no small matter, which is why Canonical's VP of engineering, Jon Seager, has released...

Security updates have been issued by Debian (freetype and rails), Fedora (mosquitto and python-django4.2), Mageia (libarchive, libreoffice, php, and quictls), Red Hat (webkit2gtk3), SUSE (erlang, nethack, python312, and wpa_supplicant), and Ubuntu (freetype and plantuml).

The long-awaited GIMP 3.0 release is now available. Major changes in 3.0 include non‑destructive editing for most commonly‑used filters, improved text creation, better color space management, and an update to GTK 3. This is the end result of seven years of hard work by volunteer developers, designers, artists, and community members (for reference, GIMP 2.10 was first published in 2018 and the initial development version of...

Version 12.00 of the SystemRescue live Linux system has been released. SystemRescue is an Arch Linux based bootable toolkit for repairing systems in the event of a crash. Notable changes in this release include an update to Linux 6.12.19, support for bcachefs, and a number of updated disk utilities. See the package list for a complete list of software included in this release.

One of the many important tasks that the kernel's memory-management subsystem must handle is keeping track of how pages of memory are mapped into the address spaces of the processes running on the system. As long as mappings to a given page exist, that page must be kept in place. As it turns out, tracking these mappings is harder than it seems it should...

Security updates have been issued by Debian (opensaml and php8.2), Fedora (chromium, ctk, dcmtk, expat, ffmpeg, firefox, fscrypt, gdcm, InsightToolkit, kitty, libssh2, libxml2, linux-firmware, man2html, nextcloud, OpenImageIO, php, podman-tui, python-django, python-django5, python-gunicorn, python-jinja2, python-spotipy, python3.6, qt6-qtwebengine, thunderbird, tigervnc, vim, vyper, xen, xorg-x11-server, and xorg-x11-server-Xwayland), Mageia (freetype2, ghostscript, and man2html), Oracle (kernel and krb5), Red Hat (grub2, libreoffice, mysql:8.0, pcs, thunderbird, tigervnc, webkit2gtk3, and xorg-x11-server),...

Linus has released the seventh (and probably last) prepatch for the 6.14 release. "Things continue to look quite calm, and I expect to release the final 6.14 next weekend unless something very surprising happens".

Version 2.49.0 of the Git source-code management system has been released. This release comprises 460 non-merge commits since 2.48.0, with contributions from 89 people, including 24 new contributors. There is a long list of improvements and bug fixes; see the highlights blog from GitHub's Taylor Blau for some of the more interesting features.

Organizations relying on open-source software have a wide range of tools, scorecards, and methodologies to try to assess security, legal, and other risks inherent in their so-called supply chain. However, Max Mehl argued recently in a short talk at FOSS Backstage in Berlin (and online) that all of this objective information and data is insufficient to truly understand and address risk. Worse, this information...

Security updates have been issued by Fedora (iniparser, thunderbird, trafficserver, and xorg-x11-server), Mageia (opensc), Oracle (.NET 8.0, .NET 9.0, gcc, kernel, and libxml2), Red Hat (firefox, grub2, and krb5), Slackware (libxslt), SUSE (amazon-ssm-agent, bsdtar, build, ffmpeg-4, forgejo-runner, kernel, python, python3, python313, rubygem-rack-1_6, and tailscale), and Ubuntu (linux-azure, linux-azure-5.15, linux-azure-fde, linux-azure-fde-5.15).

Charles Choi has announced the release of the Casual Make: a menu-driven interface, implemented as part of the Casual suite of tools, for Makefile Mode in GNU Emacs. Emacs supports makefile editing with make-mode which has a mix of useful and half-baked (though thankfully obsoleted in 30.1) commands. It is from this substrate that I'm happy to announce the next Casual user interface: Casual Make....

When the 6.14 kernel is released later this month, it will include the usual set of internal changes that users should never notice, with the possible exception of changes that bring performance improvements. One of those changes is frozen pages, a memory-management optimization that should fly mostly under the radar. When Hannes Reinecke reported a crash in 6.14, though, frozen pages suddenly came into...

Greg Kroah-Hartman has announced the release of the 6.13.7, 6.12.19, 6.6.83, 6.1.131, 5.15.179, 5.10.235, and 5.4.291 stable kernels. They all contain a relatively large number of important fixes throughout the kernel tree.

Security updates have been issued by Debian (chromium), Fedora (ffmpeg, qt6-qtwebengine, tigervnc, and xorg-x11-server-Xwayland), Red Hat (fence-agents and libxml2), SUSE (amazon-ssm-agent, ark, chromium, fake-gcs-server, gerbera, google-guest-agent, google-osconfig-agent, grafana, kernel, libtinyxml2-10, podman, python311, python312, restic, ruby3.4-rubygem-rack, and thunderbird), and Ubuntu (jinja2, linux-azure, linux-azure-4.15, linux-lts-xenial, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, netatalk, python3.5, python3.8, rar, unrar-nonfree, and xorg-server, xwayland).

Inside this week's LWN.net Weekly Edition: Front: PyPI terms of service; Zig 0.14; Matrix; Timer IDs and ABI; Module integrity checking; Capability analysis. Briefs: Path traversal; Below vulnerability; Ubuntu 25.04; Flang; Gstreamer 1.26.0; Framework Mono 6.14.0; Quotes; ... Announcements: Newsletters, conferences, security updates, patches, and more.