We last looked in on hash-based integrity checking for kernel modules just over a year and half ago. Since that time, the patch set has undergone multiple revisions. At the 2026 Linux Plumbers Conference (LPC), Thomas Weißschuh described the need for kernel-module integrity guarantees while still providing reproducible builds, how his patches implement that, and some ideas for possible further work.

LTTng creator Mathieu Desnoyers seems a bit trapped in something of a catch-22. At the 2026 Linux Plumbers Conference (LPC), he led a discussion on the problem he is having in trying to collaborate with other tracing projects (e.g. ftrace, perf) in the kernel. The feedback he has gotten, both over the years and more recently, does not show a path that would allow him to contribute the 21-year-old GPLv2-licensed LTTng tracing framework, or, incrementally, features from it, to the mainline kernel.

Python's random and secrets modules both include utilities for obtaining random values, but only one of them is suitable for generating passwords and security tokens. For much of Python's history, random was used for passwords and tokens anyway, despite documentation that called it unsuitable for cryptography. In 2015, Python's core team debated whether to fix that misuse by making random secure by default. Instead, in 2016, Python 3.6 added a second module: secrets. The random module is still misused at times, so it is instructive to look into how the random-number modules should be used.

Sharon Yang is a Chromium developer who worked at Google on the browser and now works on it at Igalia. On the final day of FOSSY 2026, she gave a presentation on her experiences with both of those companies, comparing and contrasting the ways the each operates and how that affects work on the code base. She enjoyed working at Google and feels the same about Igalia, so the talk was not aimed at complaints—instead it was meant to give a feel for two companies that are rather different.

Security updates have been issued by AlmaLinux (cockpit-image-builder, expat, ipa, kernel, kernel-rt, resteasy, ruby, ruby4.0, ruby:3.3, and ruby:4.0), Debian (dovecot, flatpak, glance, kernel, libdbi-perl, lxml, rsync, swift, and wordpress), Fedora (chromium, freeipa, freerdp, grub2, NetworkManager-iodine, NetworkManager-l2tp, perl-Catalyst-Plugin-Static-Simple, perl-Dancer2, perl-HTML-FormFu, python-quart-trio, python-streamlink, python-urllib3, and vlc), Mageia (libxml2, p11-kit, pam, and php), Slackware (groff and pcre2), SUSE (389-ds, amazon-ssm-agent, erlang27, exiv2, glib2, gnome-shell, hplip, ImageMagick, kernel, libheif, libsodium, libtpms, nodejs16, perl-DBI, python-soupsieve, redis, redis7, swtpm, and wireshark), and Ubuntu (curl, libevent, linux-aws, linux-aws-6.8, linux-aws-5.15, linux-azure-5.15, linux-azure-fde-5.15, linux-intel-iotg-5.15, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-7.0, linux-oem-7.0, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, and linux-oracle-7.0).

Version 2.56 of the Git distributed version-control system has been released. It has 748 non-merge commits since Git 2.55 was released back in June; those commits came from 104 developers, 39 of whom are first-time contributors. New features include a safer workflow for conflict resolution, smaller path-walk repacks, a new git history drop sub-command, and much more. LWN looked at Git 2.56 recently and the GitHub blog has a lengthy look at 2.56 as well.

Security updates have been issued by AlmaLinux (firefox, ipa, kernel, libxml2, perl-DBI, python-cryptography, thunderbird, and unbound), Debian (chromium, evolution-data-server, exim4, ghostscript, incus, lemonldap-ng, libheif, nodejs, php8.4, ruby-oj, swift, and vlc), Fedora (chromium, cinnamon, cinnamon-desktop, cinnamon-session, cinnamon-settings-daemon, ckermit, dnf5, forgejo, goose, gssntlmssp, libheif, libpcap, librsvg2, mingw-gstreamer1, mingw-gstreamer1-plugins-bad-free, mingw-gstreamer1-plugins-base, mingw-gstreamer1-plugins-good, mingw-python3, mongo-c-driver, muffin, nemo, nemo-extensions, nextcloud, pgadmin4, postgresql16-postgis, postgresql17-postgis, postgresql18-postgis, rust-librsvg, rust-xml5ever, sipp, suricata, tesseract, and xreader), Mageia (erlang, gpsd, libreswan, python3 & python-pip, and udisks2), Oracle (abrt, buildah, cockpit-image-builder, corosync, ipa, kernel, libxml2, openexr, perl-DBI, perl-DBI:1.641, postgresql, thunderbird, unbound, and yelp), SUSE (389-ds, ansible-lint, cups, firefox, flatpak-builder, forgejo-longterm, gdb, gimp, gitoxide, glib2, gnome-shell, google-guest-agent, google-osconfig-agent, haveged, helm, ImageMagick, kbd, libsoup, libtpms, obs-service-cargo, openai-codex, opensuse-signkey-cert, osmo-iuh, perl-mojolicious, poppler, python-WebOb, python-WebOb-doc, python313-vllm, python314, sdbootutil, suseconnect-ng, and swtpm), and Ubuntu (exim4, freerdp3, libvirt, libvirt-hwe, libwebsockets, lxc, pyjwt, and requests).

Security updates have been issued by AlmaLinux (apr-util, corosync, curl, freerdp, gstreamer1-plugins-base, libarchive, libtiff, libxml2, openexr, openssh, rsyslog, sudo, tomcat, unbound, webkit2gtk3, yggdrasil, and yggdrasil-worker-package-manager), Debian (chromium), Fedora (alsa-plugins, amarok, aqualung, atomes, attract-mode, audacious-plugins, audacity, baresip, blender, calibre, cantata, cef, chromaprint, chromium, digikam, doctl, dragon, ffmpeg, ffmpegthumbnailer, ffmpegthumbs, ffms2, fooyin, glaxnimate, goldendict-ng, gpac, gstreamer1-plugin-libav, guacamole-server, guvcview, haruna, hedgewars, icecat, janus, k3b, kdenlive, kf5-kfilemetadata, kf6-kfilemetadata, kpipewire, lazygal, lego, libcamera-apps, libheif, libopenshot, libopenshot-audio, libvncserver, localsearch, mat2, minidlna, mivisionx, mixxx, mlt, monado, mpd, mpv, mpv-mpris, neatvnc, notcurses, nv-codec-headers13.0, obs-studio, obs-studio-plugin-droidcam, obs-studio-plugin-pwvideo, obs-studio-plugin-vaapi, obs-studio-plugin-vkcapture, obs-studio-plugin-webkitgtk, olive, openal-soft, OpenBoard, opencv, openmw, opustags, os-autoinst, patool, Pencil2D, perl-HTML-FormHandler, pianobar, prometheus-podman-exporter, python-audioread, python-torchaudio, python-torchvision, qmmp, qmmp-plugin-pack, qmplay2, qt5-qtwebengine, qt6-qtmultimedia, qt6-qtwebengine, qtox, retroarch, rocdecode, rocdecode7.2, rsgain, siril, squeezelite, swayimg, tigervnc, timg, unpaper, vlc, vtk, waypipe, wf-recorder, wivrn, wxsvg, xine-lib, xmms2, xpra, xscreensaver, yle-dl, znc, and znc-clientbuffer), Mageia (nmap, pcre2, and vim), Oracle (curl, openssl-fips-provider, sudo, tomcat, webkit2gtk3, yggdrasil, and yggdrasil-worker-package-manager), Slackware (util-linux), SUSE (cadvisor, chromium, coredns, fake-gcs-server, freeciv, gh, glibc, google-guest-agent, google-osconfig-agent, hugo, kbd, kbfs, keybase-client, libheif, libpcap, mbedtls, pcre2, python-asteval, python-jwcrypto, python311, python313-ansi2html, shadowsocks-rust, sofia-sip, and trivy), and Ubuntu (clamav, expat, ghostscript, glib2.0, gst-plugins-base1.0, gst-plugins-good1.0, libsoup2.4, libsoup3, libssh2, libxml2, linux-azure-6.8, linux-azure-fde, linux-azure-fde, linux-azure-fde-7.0, linux-azure-fde, linux-intel-iotg, linux-kvm, linux-oracle, linux-xilinx-zynqmp, linux-gcp-6.8, linux-ibm, linux-xilinx, linux-ibm, linux-nvidia-bos, linux-raspi, memcached, openjdk-17, openjdk-21, openjdk-25, openjdk-8, openjdk-lts, rsyslog, and strongswan).

The open-source consulting firm Igalia has put out an announcement celebrating 25 years of working on upstream FOSS projects for its clients. The list of projects the company has worked on is rather eye-opening: WebKit, mobile-browser rendering (on Maemo, Moblin, MeeGo, and Tizen), the Linux kernel (CPU and GPU scheduling), 3D graphics drivers, the Orca screen reader, GStreamer, and lots more. Beyond that, the company, which is a worker-owned cooperative, does its work in ways that benefit the community as well as its clients:

None of this is charity. Igalia is a consultancy, and most of the work above was paid for by someone with a product to ship: a device maker who needs the web to run well on their hardware, a platform that needs a feature its users keep asking for, a company whose roadmap depends on something deep in the stack working better than it does today. What they get from us is not a patch to carry forever. We do the work upstream, in the project itself, so it arrives in the next release and keeps working long after the contract ends. Our customers ship products built on code that nobody has to maintain alone, and everyone else gets the same code. That has been the arrangement from the start.

Greg Kroah-Hartman has released the 7.2.7, 6.18.53, and 6.12.111 stable kernels. As is usual these days, they are quite large; also no surprise is that they provide many important fixes throughout the kernel tree. Users of those kernels are advised to update.

Security updates have been issued by AlmaLinux (kernel, perl-Net-DNS, sudo, tomcat, and tomcat9), Debian (chromium, gimp, libde265, libevent, linux-6.12, ruby-jwt, and unbound), Fedora (asterisk, chromium, doctl, dovecot, evolution, firefox, forgejo, freeciv, freeipa, gegl04, gimp, libheif, nss, opkssh, parted, ruby, stb, thunderbird, unbound, and webkitgtk), Mageia (bind, gawk, gdk-pixbuf2.0, graphicsmagick, gstreamer1.0-plugins-base, libde265, libpcap, libssh, mpg123, ntfs-3g, ntpsec, patch, perl-YAML, postfix, python-configargparse, and python-httplib2), Oracle (.NET 10.0, .NET 8.0, .NET 9.0, firefox, image-builder, kernel, libevent, libsoup, libsoup3, perl-Net-DNS, python-lxml, sudo, tomcat, tomcat9, and unbound), Slackware (stunnel), SUSE (alloy, dovecot22, ffmpeg-8, firefox, firefox-esr, freeipmi, glibc, google-guest-agent, google-osconfig-agent, helm, ImageMagick, jq, kbd, kernel-devel, libpcap, libsoup, libzypp, zypper, NetworkManager-applet-l2tp, nginx, openCryptoki, pcre2, python311, python313-aiosmtplib, python313-litellm, rpm, and thunderbird), and Ubuntu (linux-aws, linux-aws-fips, linux-azure-5.15, linux-azure-fde-5.15, linux-azure-fips, linux-azure-5.4, linux-gcp-fips, linux-azure-fips, linux-nvidia-tegra, linux-raspi, linux-raspi-realtime, and rclone).

Linus Torvalds has released the 7.3-rc4 kernel prepatch. It is, unsurprisingly at this point, large: "We all know the drill by now: 'it's big, yadda yadda'".

At the 2026 edition of FOSSY, Romeo Solano gave a fast-paced, humorous presentation on what could have been a rather boring topic: server encryption. There are a number of threats that we face in today's world, from criminals, government overreach, espionage, and more, that can be thwarted with encryption. But encrypting data on a system that may live elsewhere, without any access to its keyboard at boot time, is rather more difficult than encrypting the disk of a laptop. Solano described the problems and gave a tour of some of the solutions in the talk.

Typst is a system for typesetting documents into various formats: PDF, SVG, PNG, and, in progress, HTML. It is adept at handling technical material, and is often considered to be an eventual LaTeX replacement. We last looked in on Typst a year ago, when it had reached version 0.13. A new version, 0.15, was released in June with lots of new features, including support for variable fonts, MathML, multiple bibliographies, and more. Typst is free, Apache-2.0-licensed software, programmed in Rust.

Python's support for multithreaded programs has improved considerably over the last few years with the advent of the "free-threaded" version of the language. But testing multithreaded programs is notoriously difficult, because the underlying host system determines the thread-execution ordering, which adds an element of non-determinism. At PyCon US, Larry Hastings gave a talk (YouTube video) about his blanket project, which is meant to provide mechanisms for deterministic testing of multithreaded Python code.

At FOSSY 2026, several people from the Software Freedom Conservancy (SFC), which organizes the conference, gave a presentation about an ongoing violation of the Affero General Public License version 3 (AGPLv3). Bradley Kühn, Karen Sandler, and Denver Gingerich spoke about different aspects of the violation, which is in regard to 3D-printer software from Bambu Lab, and what is being done to try to provide users with alternatives. One aspect that is particularly interesting is that the circumvention that the company is employing is precisely what the AGPL was written to prevent.

At the outset of his PyCon US 2026 talk, Trey Hunner said that his goal was for attendees to stop representing filesystem paths as strings and to use pathlib instead. That's kind of a tall order, at least for longtime Python users, since string-based paths have been pervasive—and mostly work. It is that "mostly" part that makes Hunner want to see things change, of course, so he set out to describe a lesser-known corner of the language and to try to change some minds.