Kernel prepatch 6.15-rc3 [LWN.net]
The 6.15-rc3 kernel prepatch is out for testing. "There's absolutely nothing of huge note here as...
Three stable kernels [LWN.net]
The 6.14.3, 6.13.12, and 6.12.24 stable kernel updates have been released; each contains another set of...
EU OS: A European Proposal for a Public Sector Linux Desktop (The New Stack) [LWN.net]
The New Stack looks at EU OS, an attempt to create a desktop system for the...
[$] The problem of unnecessary readahead
The final session in the memory-management track of the 2025 Linux Storage, Filesystem, Memory-Management, and BPF...
[$] Tracepoints for the VFS?
Adding tracepoints to some kernel subsystems has been controversial—or disallowed—due to concerns about the user-space ABI...
Security updates for Friday [LWN.net]
Security updates have been issued by Debian (graphicsmagick and libapache2-mod-auth-openidc), Fedora (giflib, mod_auth_openidc, mysql8.0, perl, perl-Devel-Cover,...
Ubuntu 25.04 released [LWN.net]
Version 25.04 ("Plucky Puffin") of the Ubuntu Linux distribution has been released. This release includes Linux...
Tor Browser 14.5 released [LWN.net]
Version 14.5 of the Tor Browser has been released. Notable features in this release include the...
[$] Memory controller performance improvements
The kernel's memory controller works within the control-group mechanism to enforce memory-usage limits on groups of...
Security updates for Thursday [LWN.net]
Security updates have been issued by Debian (chromium and libapache2-mod-auth-openidc), Oracle (expat, freetype, glibc, grub2, gvisor-tap-vsock,...
[$] LWN.net Weekly Edition for April 17, 2025
Inside this week's LWN.net Weekly Edition: Front: APT 3.0; Fedora 42; Lots more LSFMM+BPF coverage. Briefs:...
[$] What's new in APT 3.0
Debian's Advanced Package Tool (APT) is the suite of utilities that handle package management on Debian...
Catanzaro: Dangerous arbitrary file read vulnerability in Yelp [LWN.net]
GNOME contributor Michael Catanzaro has written a blog post about a noteworthy vulnerability in GNOME's help...
[$] Parallel directory operations
Allowing directories to be modified in parallel was the topic of Jeff Layton's filesystem-track session at...
[$] Taking BPF programs beyond one-million instructions
The BPF verifier is not magic; it cannot solve the halting problem. Therefore, it has to...
CISA extends funding to the CVE program (BleepingComputer) [LWN.net]
Sergiu Gatlan reports that the US government has extended funding for the Common Vulnerabilities and Exposures...
[$] Improvements for the contiguous memory allocator
As a system runs, its memory becomes fragmented; it does not take long before the allocation...
Security updates for Wednesday [LWN.net]
Security updates have been issued by AlmaLinux (gvisor-tap-vsock, kernel, and kernel-rt), Fedora (chromium, dnf, dotnet9.0, golang,...
[$] Topics from the virtual filesystem layer
In the first filesystem-track session at the 2025 Linux Storage, Filesystem, Memory Management, and BPF Summit...
MITRE Warns CVE Program Faces Disruption (Security Week) [LWN.net]
Security Week is one of several outlets reporting that the funding for the CVE program at...
Manjaro Linux 25.0 released [LWN.net]
Version 25.0 ("Zetar") of the Arch-based Manjaro Linux distribution is now available. This release includes Linux...
Fedora Linux 42 released (Fedora Magazine) [LWN.net]
The Fedora Project has announced the release of Fedora Linux 42, with "what's new" articles for Fedora Workstation...
[$] Don't panic: Fedora 42 is here
Fedora Linux 42 has been released with many incremental improvements and updates. In this development cycle, the...
[$] Automatic tuning for weighted interleaving
It is common, on NUMA systems, to try to allocate all memory on the local node,...
Security updates for Tuesday [LWN.net]
Security updates have been issued by AlmaLinux (glibc), Red Hat (kernel and kernel-rt), Slackware (perl), SUSE...
Pinta 3.0 released [LWN.net]
Version 3.0 of the Pinta image editor has been released. The most notable change in this...
[$] In search of a stable BPF verifier
BPF is, famously, not part of the kernel's promises of user-space stability. New kernels can and...
[$] The state of the memory-management development process, 2025 edition
Andrew Morton, the lead maintainer for the kernel's memory-management subsystem, tends to be quiet during the...
Security updates for Monday [LWN.net]
Security updates have been issued by Debian (glib2.0, jinja2, kernel, mediawiki, perl, subversion, twitter-bootstrap3, twitter-bootstrap4, and...
Kernel prepatch 6.15-rc2 [LWN.net]
Linus has released 6.15-rc2 for testing. "Nothing particularly stands out to me, but it's early in...
[$] Managing multiple sources of page-hotness data
Knowing how frequently accessed a page of memory is (its "hotness") is a key input to...
[$] Inlining kfuncs into BPF programs
Eduard Zingerman presented a daring proposal that "makes sense if you think about it a bit"...
Security updates for Friday [LWN.net]
Security updates have been issued by AlmaLinux (delve and golang and go-toolset:rhel8), Debian (webkit2gtk), Fedora (openvpn,...
[$] Atomic writes for ext4
Building on the discussion in the two previous sessions on untorn (or atomic) writes, for buffered...
Malcolm: 6 usability improvements in GCC 15 [LWN.net]
Over on the Red Hat Developer site, David Malcolm has an article about improvements in GCC...
[$] Management of volatile CXL devices
Compute Express Link (CXL) memory is not like the ordinary RAM that one might install into...
Eight new stable kernels [LWN.net]
Greg Kroah-Hartman has announced the release of eight stable kernels: 6.14.2, 6.13.11, 6.12.23, 6.6.87, 6.1.134, 5.15.180,...
[$] Preparing DAMON for future memory-management problems
The Data Access MONitor (DAMON) subsystem provides access to detailed memory-management statistics, along with a set...
Security updates for Thursday [LWN.net]
Security updates have been issued by AlmaLinux (tomcat and webkit2gtk3), Debian (chromium), Fedora (ghostscript), Mageia (atop,...
[$] LWN.net Weekly Edition for April 10, 2025
Inside this week's LWN.net Weekly Edition: Front: Debian project leader election; 6.15 Merge window; Lots of...
Hardening the Firefox frontend [LWN.net]
Tom Schuster, Frederik Braun, and Christoph Kerschbaumer have published an article on the Firefox Security team's...
[$] An update on torn-write protection
In a combined storage and filesystem track session at the 2025 Linux Storage, Filesystem, Memory Management,...
[$] Debian Project Leader election 2025 edition
Four candidates have stepped up to run in the 2025 Debian Project Leader (DPL) election. Andreas...
[$] A new type of spinlock for the BPF subsystem
The 6.15 merge window saw the inclusion of a new type of lock for BPF programs:...
[$] Improving hot-page detection and promotion
Tiered-memory systems feature multiple types of memory with varying performance characteristics; on such systems, good performance...
[$] Two approaches to better kernel samepage merging
The kernel samepage merging (KSM) subsystem works by finding pages in memory with the same contents,...
OpenSSH 10.0 released [LWN.net]
OpenSSH 10.0 has been released. Support for the DSA signature algorithm, which was disabled by default...
Security updates for Wednesday [LWN.net]
Security updates have been issued by Debian (lemonldap-ng, libbssolv-perl, and phpmyadmin), Fedora (augeas, mariadb10.11, and thunderbird),...
OpenSSL 3.5.0 released [LWN.net]
Version 3.5.0 of OpenSSL has been released. This release adds support for server-side QUIC (RFC 9000),...
FreeDOS 1.4 released [LWN.net]
Version 1.4 of FreeDOS has been released. This is the first stable release since 2022, and...