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Tracepoints in the kernel are useful for a variety of purposes: debugging, active monitoring, and performance measurements, among other things. Previously, any given BPF program could only be attached to a single tracepoint. Jiri Olsa has been working to change that, and led a discussion about his progress at the 2026 Linux Storage, Filesystem, Memory-Management, and BPF Summit . That work has since been merged , and can be expected as part of the 7.2 kernel.

One of the ideas raised at the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (LSFMM+BPF) was the creation of an operations structure for the swap subsystem. Like many parts of the kernel, the swap layer evolved over time, with pieces being added as needed; the end result of this evolution is rarely what one would expect had the subsystem been designed today. The interface between the swap layer and the devices it uses is just one example. It appears that one result of the swa

Inside this week's LWN.net Weekly Edition: Front : LLMs in the kernel; GNOME save and restore; Fedora changes; BPF and tracepoints; BPF and LSMs; famfs; sched_ext. Briefs : GNOME security; PyPI policy; Arch on aarch64; Firefox 153; Quotes; ... Announcements : Newsletters, conferences, security updates, patches, and more.

One of the features that users often miss when moving from X11 to Wayland is the ability to save and restore the position of windows between sessions. At GUADEC 2026 , held in A Coruña, Spain, Adrian Vovk provided an overview of work that has gone into providing a platform-wide save and restore framework for GNOME. After two failed attempts at landing an API, he believes that the third try will be the one to succeed—though not in time for the upcoming GNOME 51 release due in October.

Python Software Foundation security developer-in-residence Seth Larson has announced that the Python Package Index (PyPI) will now reject new files that are uploaded to releases older than 14 days. The restriction is to prevent the poisoning of old releases if publishing tokens or workflows of PyPI projects are compromised. The discussion of this behavior began during PEP 740 (Digital Attestations) back in January 2024. The discussion was restarted in March 2026 after the popular packages LiteLL

Security updates have been issued by AlmaLinux (acl, dogtag-pki, dovecot, glibc, go-toolset:rhel8, golang-github-openprinting-ipp-usb, grafana, grafana-pcp, httpd:2.4, javapackages-tools:201801, libtiff, mariadb-connector-c, perl-HTTP-Daemon, pki-deps:10.6, and sssd), Debian (bind9, chromium, firefox-esr, and pdns-recursor), Fedora (chromium, collectl, fractal, kernel, libssh, llvm, nginx, nginx-mod-brotli, nginx-mod-fancyindex, nginx-mod-headers-more, nginx-mod-js-challenge, nginx-mod-modsecuri

The Codeberg forge has adopted a pair of new policies, promising not to use hosted projects to train LLMs and, more controversially, banning the hosting of LLM-generated software. The site's blog describes and justifies these policies. Although often well intentioned, sharing the result of a prompt and calling it "libre software" does not make the world a better place. Codeberg is not and does not want to be a place to dump such generated single-use software that no one else will ever look at. W

Security updates have been issued by AlmaLinux (389-ds-base, c-ares, dovecot, freerdp, glib2, gstreamer1-plugins-good, gstreamer1-plugins-ugly-free, hplip, kernel, kernel-rt, nodejs:22, perl-XML-LibXML, webkit2gtk3, and yggdrasil), Debian (kernel, nss, roundcube, rtpengine, and xz-utils), Fedora (btrbk, kernel, mupdf, nuclei, perl-Crypt-OpenSSL-X509, rust-fern, rust-ifcfg-devname, rust-routinator, rust-rpki, and rust-syslog), Mageia (tig), Oracle (.NET 10.0, .NET 8.0, .NET 9.0, acl, dovecot, gli

Version 153.0 of the Firefox web browser has been released. Notable changes in this release include a change to the default local-file-access permissions for extensions, enabling LAN restrictions by default for all users, a visual indicator when a web site has access to the user's location, the ability to merge PDFs and add images as pages within PDFs, as well as experimental support for the JPEG XL image format. See the release notes for developers for all changes that affect web developers, an

Like many development communities, the kernel community has been struggling to determine how large language models will be used in its development process. The news has been dominated recently by a strongly worded missive from Linus Torvalds on the subject, but the discussion has been rather more wide-ranging and nuanced than that. Topics that have been considered recently include the LLM attribution requirement, code-review tools, dependence on proprietary tools, and whether there is a place fo

Security updates have been issued by AlmaLinux (capstone, fence-agents, gimp, glib2, hplip, httpd, jackson-annotations, jackson-core, jackson-databind, jackson-jaxrs-providers, and jackson-modules-base, libtiff, maven:3.8, pacemaker, python3.14, and webkit2gtk3), Debian (samba), Fedora (c-ares, dnsx, freerdp, gpsd, libreswan, libseccomp, libtiff, mingw-python-idna, mingw-python-pip, openssh, python-pillow, wget1, and wireshark), Mageia (golang, graphicsmagick, haveged, libssh2, nginx, nilfs-util

The Fedora Project is known for, among other things, having a well-defined set of processes for just about everything. It has extensive packaging guidelines that deal with the complexities of creating RPMs to install software, as well as processes for managing the legal questions that arise around shipping software. Fedora also has a well-defined change process for dealing with self-contained technical changes as well as major changes to the distribution , and other issues as they arise. At the

Michael Catanzaro, who has been managing GNOME security issue tracking since November 2020, has written a blog post that details some changes in how he will be managing GNOME vulnerability reports from now on due to an increase in AI-generated security reports. He will be switching from a 90-day deadline for disclosures to 30 days for issues reported on August 1, or later. " The shorter deadline would probably work better for GNOME even if not for the increase in AI-generated issue reports. " He

The famfs filesystem , which is meant to provide shared access to huge memory-resident files on CXL and other devices, returned to the Linux Storage, Filesystem, Memory Management, and BPF Summit (LSFMM+BPF) in 2026. It was first discussed at LSFMM+BPF 2024 and a new implementation was described at the 2025 gathering , but it still has not made its way into the kernel; LWN looked at a discussion about merging famfs back in April 2026.

Security updates have been issued by Debian (kernel, libnfs, roundcube, and tiff), Fedora (antlr4-project, chromium, erlang, libseccomp, libtiff, log4cxx, mbedtls, node-exporter, opam, openssh, proftpd, python-asyncssh, python-django5, python-libcst, python-orjson, python-uv-build, ruby, rust-astral_async_zip, spoofdpi, uv, and yq), Mageia (bind, clamav, erlang, libidn, libreoffice, nmap, nodejs, perl-Bytes-Random-Secure, perl-Config-IniFiles, perl-CSS-Minifier-XS, perl-HTML-Parser, perl-Mojolic

The 7.2-rc4 kernel prepatch is out for testing. Linus said: " This whole week I had the feeling that people were starting to go on summer vacation, but running the numbers shows that I must have been wrong - it all looks pretty normal. "

Adrian Mastronardi has released a book called Half a Second ; it is a detailed look into the XZ backdoor attempt of 2024. The book is freely available under a (non-free) noncommercial, no-derivatives CC license. Half a Second tells that story as one continuous narrative: the burned-out volunteer who maintained the code alone and was patiently, expertly manipulated into giving it up; the engineer whose half-second of curiosity caught the attack through a chain of luck and hard-won instinct; and t

The 7.1.4 , 6.18.39 , and 6.12.96 stable kernel updates have been released; each contains a fairly large set of important fixes.

Collabora has published a blog post about its work with Valve on Holo Core, which is a port of Arch Linux to aarch64 to be used as the the operating system on Valve's 64-bit Arm Steam Frame gaming system. Collabora has released the sources , binary packages , and a container image for aarch64 devices. The post describes some of the challenges in porting Arch Linux to a new architecture, and what remains to be done: Whilst the infrastructure developed to this point is capable of building from fir

Since 2020, BPF programs have been able to act as Linux security modules (LSMs). Several projects, including systemd, have been working to use that capability to provide more security to users. Christian Brauner spoke at the 2026 Linux Storage, Filesystem, Memory-Management, and BPF Summit about some of the limitations of using BPF in this way, and the changes he would like to see for systemd's use. In particular, he would like a way to make sure that BPF programs cannot be removed or have their

Security updates have been issued by AlmaLinux (cifs-utils, container-tools:rhel8, libreoffice, nodejs:24, perl-XML-LibXML, and python3.12), Fedora (ansible-collection-ansible-posix, firefox, freerdp, ImageMagick, mingw-glib2, perl-DBI, perl-HTTP-Date, rust-cargo-rpmstatus, and rust-opendal), Oracle (cifs-utils, gegl, gimp, git-lfs, go-toolset:ol8, hplip, kernel, libreoffice, maven:3.9, perl-XML-LibXML, python3, python3.12, python3.9, and uek-kernel), Red Hat (kernel, kernel-rt, and podman), Sla