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There are many applications that need to be able to write multi-block chunks of data to disk with the assurance that the operation will either complete successfully or fail altogether — that the write will not be partially completed (or "torn"), in other words. For years, kernel developers have worked on providing atomic writes as a way of satisfying that need; see, for example, sessions from the Linux Storage, Filesystem, Memory Management, and BPF (LSFMM+BPF) Summit from 2023 , 2024 , and 202…

Toke Høiland-Jørgensen has posted an overview of how zero-copy networking works in the Linux kernel. Since the memory is being copied directly from userspace to the network device, the userspace application has to keep it around unmodified, until it has finished sending. The sendmsg() syscall itself is asynchronous, and will return without waiting for this. Instead, once the memory buffers are no longer needed by the stack, the kernel will return a notification to userspace that the buffers can…

Version 7.3 of Texinfo, the GNU documentation-formatting system, has been released. It contains a number of new features, performance improvements, and enhancements.

The free and open-source software (FOSS) movements have always been about giving freedom and power to individuals and organizations; throughout that history, though, there have also been actors trying to exploit FOSS to their own advantage. At Configuration Management Camp (CfgMgmtCamp) 2026 in Ghent, Belgium, Richard Fontana described the " exploitation paradox " of open source: the recurring pattern of crises when actors exploit loopholes to restrict freedoms or gain the upper hand over other…

Motorola has announced that it will be working with the GrapheneOS Foundation, a producer of a security-enhanced Android distribution. " Together, Motorola and the GrapheneOS Foundation will work to strengthen smartphone security and collaborate on future devices engineered with GrapheneOS compatibility. ". LWN looked at GrapheneOS last July.

Version 1.0 of Gram, an " opinionated fork of the Zed code editor ", has been released. Gram removes telemetry, AI features, collaboration features, and more. It adds built-in documentation, support for additional languages, and tab-completion features similar to the Supertab plugin for Vim. The mission statement for the project explains: At first, I tried to build some other efforts I found online to make Zed work without the AI features just so I could check it out, but didn't manage to get t…

Security updates have been issued by Debian (lxd, orthanc, and thunderbird), Fedora (cef, chromium, gimp, nextcloud, pgadmin4, python-django4.2, python-django5, python3-docs, python3.12, python3.13, and python3.9), Oracle (container-tools:rhel8 and mingw-fontconfig), Slackware (gvfs, mozilla, and telnet), SUSE (avahi, cockpit-356, cockpit-podman, cockpit-podman-120, containerized-data-importer, digger-cli, docker, evolution-data-server, expat, firefox, freerdp2, gimp, glib2, glibc, go1, google-…

The 7.0-rc2 kernel prepatch is out for testing. According to Linus: So I'm not super-happy with how big this is, but I'm hoping it's just the random timing noise we see every once in a while where I just happen to get more pull requests one week, only for the next week to then be quieter.

Version 1.24.0 of the groff text-formatting system has been released. Improvements include the ability to insert hyperlinks between man pages, a new polygon command for the pic preprocessor, various PDF-output improvements, and more.

The Python bitwise-inversion (or complement) operator, " ~ ", behaves pretty much as expected when it is applied to integers—it toggles every bit, from one to zero and vice versa. It might be expected that applying the operator to a non-integer, a bool for example, would raise a TypeError , but, because the bool type is really an int in disguise, the complement operator is allowed, at least for now. For nearly 15 years (and perhaps longer), there have been discussions about the oddity of that b…

Greg Kroah-Hartman has announced the 6.19.4 and 6.18.14 stable kernels. Shortly after 6.19.4 was released Kris Karas reported " getting a repeatable Oops right when networking is initialized, likely when nft is loading its ruleset "; the problem did not appear to be present in 6.18.14. Users of nftables may wish to hold off on upgrades to 6.19.4 for now. We will provide updates as they are available.

Security updates have been issued by AlmaLinux (389-ds-base, buildah, firefox, freerdp, golang-github-openprinting-ipp-usb, grafana-pcp, kernel, libpng15, munge, nodejs:20, nodejs:22, podman, protobuf, python-pyasn1, runc, and skopeo), Debian (chromium, nss, and python-django), Fedora (firefox, freerdp, gh, libmaxminddb, nss, python3.15, and udisks2), Oracle (buildah, firefox, freerdp, kernel, libpng, podman, python-pyasn1, skopeo, and valkey), Red Hat (container-tools:rhel8), SUSE (autogen, ch…

The International Image Interoperability Framework , or IIIF ("triple-eye eff"), is a small set of standards that form a basis for serving, displaying, and reusing image data on the web. It consists of a number of API definitions that compose with each other to achieve a standard for providing, for example, presentations of high-resolution images at multiple zoom levels, as well as bundling multiple images together. Presentations may include metadata about details like authorship, dates, refere…

Security updates have been issued by AlmaLinux (freerdp), Debian (firefox-esr and libstb), Fedora (389-ds-base, chromium, firefox, munge, opentofu, python3-docs, python3.14, and vim), Oracle (buildah, containernetworking-plugins, gimp, grafana, grafana-pcp, kernel, podman, runc, and skopeo), Red Hat (go-toolset:rhel8, golang, golang-github-openprinting-ipp-usb, grafana, grafana-pcp, mariadb:10.11, podman, and skopeo), SUSE (cacti, docker-stable, expat, firefox-esr, freerdp, freerdp2, libjxl, li…

Inside this week's LWN.net Weekly Edition: Front : New flags for clone3(); Discord replacements; virtual swap spaces; BPF memory protection keys; PostgreSQL's lessons in attracting contributors; 7.0 merge window; Network Time Security. Briefs : OpenSUSE governance; Firefox 148.0; GNU Awk 5.4.0; GNU Octave 11.1.0; Rust in Ladybird; LibreOffice Online; Weston 15.0; RIP Robert Kaye; Quotes; ... Announcements : Newsletters, conferences, security updates, patches, and more.