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Monday April 7, 2025. 09:56 PM
ACM Queue looks at the security problem in the light of a report on Multics security that was published in 1974. We are all struggling with a massive shift that has happened in the past 10 or 20 years in the software industry. For decades, software reuse was only a lofty...
The kernel's swap subsystem is complex and highly optimized — though not always optimized for today's workloads. In three adjacent sessions during the memory-management track of the 2025 Linux Storage, Filesystem, Memory-Management, and BPF Summit, Kairui Song, Nhat Pham,...
The 6.14.1, 6.13.10, 6.12.22, 6.6.86, and 6.1.133 stable kernels have all been released. They contain a relatively small collection of important fixes across the kernel tree.
Security updates have been issued by Debian (abseil, atop, jetty9, ruby-saml, tomcat10, trafficserver, xz-utils, and zfs-linux), Fedora (chromium, condor, containernetworking-plugins, cri-tools1.29, crosswords-puzzle-sets-xword-dl, exim, ghostscript, matrix-synapse, upx,...
Linus has released 6.15-rc1 and closed the merge window for this release. 'As expected, this was one of the bigger merge windows, almost certainly just because we had some pent-up development due to the previous releases being impacted by the holiday season. That said, while ...
Friday April 4, 2025. 05:52 PM
A typical cloud-computing host will share some of its memory with each guest that it runs. The host retains its access to that memory, though, meaning that it can readily dig through that memory in search of data that the guest would prefer to keep private. The guest_memfd...
Alistair Popple started his session at the 2025 Linux Storage, Filesystem, Memory-Management, and BPF Summit by proclaiming that ZONE_DEVICE is 'the ugly stepchild' of the kernel's memory-management subsystem. Ugly or not, the ability to manage memory that is attached to a...
At last year's Linux Storage, Filesystem, Memory-Management, and BPF Summit (LSFMM+BPF), there was a discussion about atomic writes that was accompanied by patches to support the feature in the block layer, and for direct I/O on XFS. That work was merged, but another piece...
Yonghong Song brought a story about tracking down the cause of a strange verifier error message to the 2025 Linux Storage, Filesystem, Memory-Management, and BPF Summit. He then presented some possible ways to improve Clang's user experience for anyone running into the same...
Security updates have been issued by AlmaLinux (firefox), Debian (atop and thunderbird), Fedora (webkitgtk), Mageia (microcode), Oracle (expat), SUSE (apparmor, assimp-devel, aws-efs-utils, expat, firefox, ghostscript, go1.23, gotosocial, govulncheck-vulndb, GraphicsMagick,...
Thursday April 3, 2025. 05:02 PM
Address-space isolation may well be, as Brendan Jackman said at the beginning of his memory-management-track session at the 2025 Linux Storage, Filesystem, Memory-Management, and BPF Summit, 'some security bullshit'. But it also holds the potential to protect the kernel from ...
The kernel must often step through the page tables of one or more processes to carry out various operations. This 'page-table walking' tends to be performed by ad-hoc (duplicated) code all over the kernel. Oscar Salvador used a memory-management-track session at the 2025...
Version 1.86.0 of the Rust language has been released. Changes include support for trait upcasting, the ability to index multiple elements of HashMaps and slices mutably, and a number of stabilized APIs.
Security updates have been issued by AlmaLinux (expat), Debian (chromium, commons-vfs, firefox-esr, php-horde-editor, php-horde-imp, and thunderbird), Fedora (corosync, firefox, nextcloud, and suricata), Mageia (curl and upx), Oracle (emacs, fence-agents, freetype, kernel,...
Inside this week's LWN.net Weekly Edition: Front: Calibre 8.0; Fedora reproducibility; OpenWrt One; 6.15 Merge Window; LSFMM+BPF coverage including BPF in GCC, Rust merging process, and more. Briefs: Ubuntu namespaces; New FPL; PorteuX 2.0; Firefox 137.0; GCC Rust;...
Wednesday April 2, 2025. 07:00 PM
Saying that calibre is ebook-management software undersells the application by a fair margin. Calibre is an open-source Swiss Army knife for ebooks that can be used for everything from creating ebooks, converting ebooks from obscure formats to modern formats like EPUB, to...
José Marchesi and David Faust kicked off the BPF track at the 2025 Linux Storage, Filesystem, Memory-Management, and BPF Summit with an extra-long session on what they have been doing to support compiling to BPF in GCC. Overall, the project is slowly working toward full...
Ryan Sipes has announced efforts to expand Thunderbird's offerings with web services to 'enhance the experience of using Thunderbird'. The Why for offering these services is simple. Thunderbird loses users each day to rich ecosystems that are both clients and services, such ...
Outgoing Fedora Project Leader (FPL) Matthew Miller has announced his successor, Jef Spaleta. Some of you may remember Jef's passionate voice in the early Fedora community. He got involved all the way back in the days of fedora.us, before Red Hat got involved. Jef served on ...
Version 2.0 of PorteuX, a distribution based on Slackware Linux, has been released. This release adds the ability to test experimental Wayland sessions for the Cinnamon, LXQt, and Xfce desktops. PorteuX 2.0 updates the Linux kernel to 6.14 and includes many package updates...
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