Latest Linux and open source news from around the web

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LWN.net

Asahi Linux warns users not to upgrade to macOS 27 beta

The Asahi Linux project, which brings Linux support to Apple Arm-based Macs, has warned its users not to upgrade to the macOS 27 "Golden Gate" beta. Apple has changed how the boot picker and Startup Disk applications detect valid OS boot volumes. When using either from macOS 27, your Asahi partition will not be visible! We believe this to be a bug, and have filed a report (FB22994760). If you have already upgraded to the beta and noticed that your Asahi partition has disappeared, do not stress. Your Asahi partition is still there, and you have not lost any data. The Asahi Linux installer has been patched to prevent use with macOS 27 for now, but any users already bitten by the change will need to use macOS 26 to restore access to Asahi Linux.

LWN.net

[$] BPF loop verification with scalar evolution

The BPF verifier has, in the course of wrestling with the difficult problem of statically analyzing loops, grown special support for many kinds of loops over its history, but its fundamental approach to simple for loops has not changed. When it encounters a loop, it evaluates it, iteration by iteration, until reaching an exit condition — a process that can cause the verifier to mistakenly hit the limit on the number of allowed instructions where a better implementation would not. Eduard Zingerman spoke at the 2026 Linux Storage, Filesystem, Memory-Management, and BPF Summit about his in-progress work on improving the verifier's treatment of loops, especially nested loops.

LWN.net

Security updates for Tuesday

Security updates have been issued by AlmaLinux (bind and libyang), Debian (keystone and openssl), Fedora (mingw-objfw, objfw, sentencepiece, and tailscale), Mageia (packagekit and suricata), Oracle (bind, bind9.16, go-toolset:ol8, ImageMagick, kernel, samba, and vim), SUSE (apache-commons-lang3, apache-commons-text, apache-commons- configuration2, apache-commons-cli, apache-commons-io, apache-commons-codec, avahi, busybox, chromedriver, chromium, csync2, firewalld, frr, gleam, helm, kernel-devel, keybase-client, libmozjs-140-0, libopenvswitch-3_7-0, libsoup, memcached, mutt, openjpeg2, ovmf, perl-HTML-Parser, perl-Net-CIDR-Set, perl-Protocol-HTTP2, postgresql-jdbc, postgresql17, python-CairoSVG, python-Flask, python-pip, python-pyOpenSSL, python-python-multipart, python-Twisted, python-urllib3, python-urllib3_1, python-uv, python311, rsync, tomcat, and tree-sitter), and Ubuntu (alsa-lib, cups, inetutils, isc-kea, jpeg-xl, libnet-cidr-lite-perl, netatalk, netty, nginx, node-shell-quote,

LWN.net

Linux App Summit 2026 (Heise)

Heise is carrying a report from the Linux App Summit, held in Berlin in May. The slightly more than a dozen talks were symbolically framed between the opening keynote by systemd creator Lennart Poettering and the closing talk by Jorge Castro, initiator of the Universal Blue project, from which the modern Linux systems Bluefin and Bazzite emerged. Both Castro and Poettering call for a fundamental rethink of how Linux operating systems are delivered but pursue different approaches.

LWN.net

Three stable kernels for Tuesday

Greg Kroah-Hartman has announced the release of the 7.0.12, 6.18.35, and 6.12.93 stable kernels. Each contains important fixes throughout the tree. Users are advised to upgrade.

Phoronix

macOS 27 Beta Breaks The Ability To Boot Asahi Linux

Asahi Linux is warning its users from trying out the new macOS 27 "Golden Gate" beta released this week by Apple. With macOS 27 beta, the Asahi Linux partition is no longer visible and thus unable to boot to your Apple Silicon Linux installation...

Phoronix

RISC-V CPU Performance Up 8x In Five Years: SiFive HiFive Unmatched To SpacemiT K3

Recently I published some initial SpacemiT K3 benchmarks for that first-to-market RISC-V RVA23 SoC with the K3 Pico-ITX mini computer. In there was a comparison against modern Intel Core Ultra and AMD Ryzen desktop CPUs along with the likes of the Raspberry Pi 5, Loongson 3B6000, and SiFive HiFive Premier. For those curious about the longer-term RISC-V performance, here is a look at how far the RISC-V hardware performance has come compared to the SiFive HiFive Unmatched RISC-V board from five years ago.