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Linux Journal

BudsLink Brings Advanced Earbud Controls to Linux Desktops

by George Whittaker Linux users have long faced a frustrating limitation with wireless earbuds: basic Bluetooth audio usually works, but advanced features often remain locked behind proprietary mobile apps. A new open-source project called BudsLink is trying to change that. Designed specifically for Linux desktops, BudsLink adds support for battery monitoring, Active Noise Cancellation (ANC) controls, ambient sound modes, gesture customization, and other premium earbud features that are typically unavailable outside Android or iOS ecosystems. For Linux users who rely on devices like AirPods, Sony earbuds, Samsung Galaxy Buds, or Nothing earbuds, this is a significant quality-of-life improvement. What Is BudsLink? BudsLink is an independent open-source application that communicates directly with supported Bluetooth earbuds using Linux Bluetooth protocols such as L2CAP and RFCOMM sockets. Instead of treating earbuds as simple audio devices, the application exposes many of the advanced co

LWN.net

[$] Buffered atomic writes, writethrough, and more

In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes feature was discussed. In the first session, Pankaj Raghav and Andres Freund set the stage with an introduction to the problem, along with a use case for its solution: the PostgreSQL database system. In the second, Ojaswin Mujoo described a potential way forward for the feature using an approach based on writethrough, which effectively means that the kernel immediately writes the data to disk instead of waiting for writeback from the page cache to occur. As might be expected, there was quite a bit of discussion among the assembled filesystems and storage developers during the combined sessions for those tracks.

LWN.net

Three stable kernels for Thursday

Greg Kroah-Hartman has announced the release of the 7.0.7, 6.18.30, and 6.12.88 stable kernels. These kernels do not include a patch for the Fragnesia local-privilege-escalation exploit that came to light on May 13, but do include many other important fixes throughout the tree. Users are, as always, advised to upgrade.

Phoronix

Plasma Big Screen Working Out Quite Well With Plasma 6.7 Beta

With today's KDE Plasma 6.7 beta release there has been a surprising amount of interest in the new revival of Plasma Big Screen as the TV-sized UI for Plasma. I've been trying it out today and it has worked out rather well, a very smooth experience, and in good shape for making its debut in next month's Plasma 6.7 release...

LWN.net

[$] Keeping COWs in context (a.k.a. anonymous reverse mapping)

The kernel's reverse-mapping machinery is charged with locating the page-table entries that refer to a given page in memory. The reverse mapping of anonymous pages is handled differently than for file-backed pages. The kernel's implementation of reverse mapping for anonymous pages is, according to Lorenzo Stoakes in his proposal for a memory-management-track session at the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, "a very broken abstraction", due to its complexity. It also has some performance problems. Stoakes was there to present, in raw form, a proposed replacement that he calls a "COW context".

LWN.net

Security updates for Thursday

Security updates have been issued by AlmaLinux (gimp, jq, and yggdrasil), Debian (nghttp2 and thunderbird), Fedora (chromium, firefox, freerdp, GitPython, kernel, kernel-headers, krb5, nano, nix, nodejs20, php, python-click, python-django5, SDL2_image, and xen), Mageia (dnsmasq, flatpak, kernel, kmod-virtualbox, kernel-linus, perl-Net-CIDR-Lite, perl-XML-LibXML, and redis), SUSE (dnsmasq, firefox, jupyter-jupyterlab, kernel, krb5, libvinylapi3, log4j, Mesa, mozjs60, NetworkManager, OpenImageIO, python-Mako, python-Pillow, and python39), and Ubuntu (dnsmasq and nginx).