Hírolvasó

Four more stable kernel updates

Linux Weekly News
6 hónap 1 hét óta

Greg Kroah-Hartman has announced the release of four more stable kernels: 6.13.6, 6.12.18, 6.6.81, and 6.1.130. Unlike a normal release, Kroah-Hartman did not call for all users to update their kernels. Specifically, the 6.6.81 kernel is currently broken on i386 systems, and users should wait for 6.6.82.

daroc

Ubuntu 25.04 (Plucky Puffin) progress

Linux Weekly News
6 hónap 1 hét óta

Matthieu Clemenceau has published a status update from the Foundations Team on Ubuntu 25.04 (Plucky Puffin) development to the Ubuntu Discourse forum. This includes updates on Ubuntu's adoption of Dracut as an alternative to initramfs-tools, a move to a single ISO for arm64 devices rather than device-specific images, and reverting the planned O3 optimization flags for Plucky Puffin.

Earlier in this cycle, we announced plans to enable the O3 optimization level for all Ubuntu packages by default. As part of this effort, we conducted extensive benchmarking, which revealed that while some workloads saw improvements, overall system performance slightly declined, and binary sizes increased. Given these results, we are likely to revert this change soon.

The beta for Ubuntu 25.04 is planned for March 27, with the final release scheduled on April 17.

jzb

[$] Hash-based module integrity checking

Linux Weekly News
6 hónap 1 hét óta

On January 20, Thomas Weißschuh shared a new patch set implementing an alternate method for checking the integrity of loadable kernel modules. This mechanism, which checks module integrity based on hashes computed at build time instead of using cryptographic signatures, could enable reproducible kernel builds in more contexts. Several distributions have already expressed interest in the patch set if Weißschuh can get it into the kernel.

daroc

Security updates for Friday

Linux Weekly News
6 hónap 1 hét óta
Security updates have been issued by Debian (chromium), Fedora (firefox and man2html), Mageia (erlang, ffmpeg, and vim), Oracle (doxygen, firefox, python-jinja2, squid, and webkit2gtk3), Red Hat (nodejs:18), SUSE (emacs, go1.23, go1.24, and pcp), and Ubuntu (ansible, firefox, linux-azure, linux-nvidia, and python-django).
daroc

[$] Timer IDs, CRIU, and ABI challenges

Linux Weekly News
6 hónap 1 hét óta
The kernel project has usually been willing to make fundamental internal changes if they lead to a better kernel in the end. The project also, though, goes out of its way to avoid breaking interfaces that have been exposed to user space, even if programs come to rely on behavior that was never documented. Sometimes, those two principles come into conflict, leading to a situation where fixing problems within the kernel is either difficult or impossible. This sort of situation has been impeding performance improvements in the kernel's POSIX timers implementation for some time, but it appears that a solution has been found.
corbet

Security updates for Thursday

Linux Weekly News
6 hónap 1 hét óta
Security updates have been issued by Debian (firefox-esr), Fedora (firefox and vim), Red Hat (firefox), Slackware (mozilla), SUSE (firefox, firefox-esr, kernel, and podman), and Ubuntu (gpac, kernel, linux, linux-aws, linux-gcp, linux-gcp-5.15, linux-gke, linux-hwe-5.15, and redis).
jake