Vue lecture

[$] CoMaps emerges as an Organic Maps fork

✇LWN
Par :corbet
The open-source mobile app Organic Maps is used by millions of people on both the Android and iOS platforms. In addition to featuring offline maps (generated from OpenStreetMap cartography) and turn-by-turn navigation, it also promises its users greater privacy than proprietary options. However, controversial decisions taken by the project's leaders, feelings of disenfranchisement among contributors, and even accusations of embezzlement have precipitated a divide in the community, leading to a new fork called CoMaps.
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Radicle Desktop released

✇LWN
Par :jzb

The Radicle peer-to-peer code collaboration project has released Radicle Desktop: a graphical interface designed to simplify more complex parts of using Radicle such as issue management and patch reviews.

Radicle Desktop is not trying to replace your terminal, IDE, or code editor - you already have your preferred tools for code browsing. It won't replace our existing app.radicle.xyz and search.radicle.xyz for finding and exploring projects. It also doesn't run a node for you. Instead, it communicates with your existing Radicle node, supporting your current workflow and encourages gradual adoption.

LWN covered Radicle in March 2024.

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Security updates for Friday

✇LWN
Par :daroc
Security updates have been issued by AlmaLinux (.NET 8.0, .NET 9.0, glibc, kernel, and mod_security), Fedora (chromium, gh, mingw-icu, nginx-mod-modsecurity, python3.10, python3.9, thunderbird, valkey, and yarnpkg), Oracle (.NET 8.0, .NET 9.0, glibc, grafana-pcp, kernel, libxml2, mod_security, nodejs:20, and thunderbird), SUSE (audiofile, helm, kubernetes-old, kubernetes1.23, kubernetes1.24, libcryptopp, postgresql15, thunderbird, and valkey), and Ubuntu (linux-nvidia-tegra-igx).
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[$] FAIR package management for WordPress

✇LWN
Par :jzb

The last year has been a rocky one for the WordPress community. Matt Mullenweg—WordPress co-founder and CEO of WordPress hosting company Automattic—started a messy public spat with WP Engine in September and has proceeded to use his control of the project's WordPress.org infrastructure as weapons against the company, with the community caught in the crossfire. It is not surprising, then, that on June 6 a group of WordPress community participants announced the Federated and Independent Repositories Package Manager (FAIR.pm) project. It is designed to be a decentralized alternative to WordPress.org with a goal of building "public digital infrastructure that is both resilient and fair".

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Summaries from the 2025 Python Language Summit

✇LWN
Par :corbet
The Python Software Foundation blog is carrying a set of detailed summaries from the 2025 Python Language Summit:

The Python Language Summit 2025 occurred on May 14th in Pittsburgh, Pennsylvania. Core developers and special guests from around the world gathered in one room for an entire day of presentations and discussions about the future of the Python programming language.

Topics covered include making breaking changes less painful, free-threaded Python, interaction with Rust, and challenges faced by the Steering Council.

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[$] Parallelizing filesystem writeback

✇LWN
Par :jake
Writeback for filesystems is the process of flushing the "dirty" (written) data in the page cache to storage. At the 2025 Linux Storage, Filesystem, Memory Management, and BPF Summit (LSFMM+BPF), Anuj Gupta led a combined storage and filesystem session on some work that has been done to parallelize the writeback process. Some of the performance problems that have been seen with the existing single-threaded writeback came up in a session at last year's summit, where the idea of doing writeback in parallel was discussed.
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Security updates for Thursday

✇LWN
Par :jake
Security updates have been issued by AlmaLinux (kernel), Debian (chromium, gst-plugins-bad1.0, node-tar-fs, and ublock-origin), Gentoo (Emacs, File-Find-Rule, GStreamer, GStreamer Plugins, GTK+ 3, LibreOffice, Node.js, OpenImageIO, Python, PyPy, Qt, X.Org X server, XWayland, and YAML-LibYAML), Mageia (mariadb and roundcubemail), Red Hat (go-toolset:rhel8, golang, grafana, grafana-pcp, gstreamer1-plugins-bad-free, libxml2, libxslt, mod_security, nodejs:20, and perl-FCGI:0.78), Slackware (mozilla), SUSE (docker, docker-compose, iputils, kernel, libsoup, open-vm-tools, rabbitmq-server, rabbitmq-server313, wget, and yelp), and Ubuntu (libsoup2.4 and webkit2gtk).
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[$] LWN.net Weekly Edition for June 12, 2025

✇LWN
Par :corbet
Inside this week's LWN.net Weekly Edition:

  • Front: Nyxt; Cyber Resilience Act; Unwanted file descriptors; Core-dump API; 6.16 Merge window; Uniprocessor configurations; Smatch; FUSE zero-copy; iov_iter; Fedora documentation.
  • Briefs: Android tracking; /e/OS 3.0; FreeBSD laptops; Ubuntu X11 support; Netdev 0x19; OIN anniversary; Quotes; ...
  • Announcements: Newsletters, conferences, security updates, patches, and more.
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[$] Finding locking bugs with Smatch

✇LWN
Par :daroc

Smatch is a GPL-licensed static-analysis tool for C that has a lot of specialized checks for the kernel. Smatch has been used in the kernel for more than 20 years; Dan Carpenter, its primary author, decided last year that some details of its plugin system were due for a rewrite. He spoke at Linaro Connect 2025 about his work on Smatch, the changes to its implementation, and how those changes enabled him to easily add additional checks for locking bugs in the kernel.

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Covert web-to-app tracking via localhost on Android

✇LWN
Par :corbet
The "Local Mess" GitHub repository is dedicated to the disclosure of an Android tracking exploit used by (at least) Meta and Yandex.

While there are subtle differences in the way Meta and Yandex bridge web and mobile contexts and identifiers, both of them essentially misuse the unvetted access to localhost sockets. The Android OS allows any installed app with the INTERNET permission to open a listening socket on the loopback interface (127.0.0.1). Browsers running on the same device also access this interface without user consent or platform mediation. This allows JavaScript embedded on web pages to communicate with native Android apps and share identifiers and browsing habits, bridging ephemeral web identifiers to long-lived mobile app IDs using standard Web APIs.

This backdoor, the use of which has evidently stopped since its disclosure, allow tracking of users across sites regardless of cookie policies or use of incognito browser modes.

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Security updates for Wednesday

✇LWN
Par :jzb
Security updates have been issued by AlmaLinux (glibc, grafana, kernel-rt, libjpeg-turbo, libxslt, and thunderbird), Debian (curl), Fedora (dtk6core, dtk6gui, dtk6log, dtk6widget, fcitx5-qt, gammaray, kddockwidgets, kwin, LabPlot, libqtxdg, nheko, plasma-integration, python-pyqt6, python-pyside6, qt-creator, roundcubemail, zeal, and a large number of qt6 packages), Oracle (firefox, glibc, grafana, kernel, libxslt, perl-FCGI, python3.12-cryptography, thunderbird, and zlib), SUSE (glib2, libjxl, libsoup2, nbdkit, nodejs22, perl-Crypt-OpenSSL-RSA, perl-YAML-LibYAML, python3, tomcat, and transfig), and Ubuntu (dotnet8, dotnet9 and samba).
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Ubuntu 25.10 to drop support for GNOME on Xorg

✇LWN
Par :jzb

Jean Baptiste Lallement, a member of Canonical's desktop team, has announced that Ubuntu will drop support for GNOME on X11 in the 25.10 ("Questing Quokka") release set for October. GNOME plans to remove X11 support in GNOME 49, which is scheduled for September, so Ubuntu is looking to be proactive:

Ubuntu 25.10 is the last interim release before our next LTS (Ubuntu 26.04). By moving now, we give developers and users a full cycle to adapt before the next LTS, align with GNOME 49 and reduce fragmentation while simplifying our support matrix heading into the LTS.

Fedora decided in early May to drop X11 support for GNOME in Fedora 43, which is also due in October.

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[$] Improving iov_iter

✇LWN
Par :jake
The iov_iter interface is used to describe and iterate through buffers in the kernel. David Howells led a combined storage and filesystem session at the 2025 Linux Storage, Filesystem, Memory Management, and BPF Summit (LSFMM+BPF) to discuss ways to improve iov_iter. His topic proposal listed a few different ideas including replacing some iov_iter types and possibly allowing mixed types in chains of iov_iter entries; he would like to make the interface itself and the uses of iov_iter in the kernel better.
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[$] An end to uniprocessor configurations

✇LWN
Par :corbet
The Linux kernel famously scales from the smallest of systems to massive servers with thousands of CPUs. It was not always that way, though; the initial version of the kernel could only manage a single processor. That limitation was lifted, obviously, but single-processor machines have always been treated specially in the scheduler. That longstanding situation may soon come to an end, though, if this patch series from Ingo Molnar makes it upstream.
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20 Years of the Open Invention Network

✇LWN
Par :corbet
The Open Invention Network (OIN) is celebrating its 20th anniversary.

The central feature of the OIN community is a patent cross-license that covers core Open Source functionality and expands in parallel with the growth of Open Source technology. As growth in Open Source has accelerated, OIN has proactively expanded the scope of the OIN license's benefit by including more than 4,500 software components and platforms in its Linux System definition, which comprises the list of Open Source code and associated functionality in OIN's patent cross-license.

LWN's first look at OIN was this article by Pamela Jones in late 2005.

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Three stable kernel updates

✇LWN
Par :corbet
The 6.15.2, 6.14.11, and 6.12.33 stable kernel updates have been released; each contains a relatively small set of important fixes.

Note that this is the end of the line for the 6.14.x updates; Greg Kroah-Hartman explains the timing of this move:

If you notice, this has happened a bit more "early" than previous end-of-life announcements. Normally, after -rc1 is out there is a TON of stable patches happening due to the changes that come into the merge-window that were marked for stable backports but didn't get into Linus's release before -final. As some people have objected to this large influx being added to a stable kernel that is just about to go end-of-life, let's try marking this end-of-life a bit earlier to see how it goes.
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Security updates for Tuesday

✇LWN
Par :corbet
Security updates have been issued by Debian (python-django), Fedora (krb5), Mageia (cockpit, golang, kernel, and kernel-linus), SUSE (augeas, go1.23, go1.24, iputils, libwebp, transfig, and xen), and Ubuntu (amd64-microcode, apport, linux-azure, linux-azure, linux-azure-4.15, linux-azure-fips, linux-raspi, systemd, and tomcat).
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[$] Improving Fedora's documentation

✇LWN
Par :jzb

At Flock, Fedora's annual developer conference, held in Prague from June 5 to June 8, two members of the Fedora documentation team, Petr Bokoč and Peter Boy, led a session on the state of Fedora documentation. The pair covered a brief history of the project's documentation since the days of Fedora Core 1, challenges the documentation team faces, as well as plans to improve Fedora's documentation by enticing more people to contribute.

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