The Linux 7.2 kernel merged 16,418 non-merge commits, more than the previous 7.1 release and second only to 6.7 in total history, according to LWN's Kernel Source Database. Unlike 6.7, where commit volume was skewed by the bcachefs merge, 7.2's activity was spread across many subsystems. A record 2,652 developers contributed, up from 2,479 in 7.1, with Uwe Kleine-König, Rosen Penev and Ian Rogers topping the list by number of changesets.
lwn.net
· 2026-10-17
Linus Torvalds has posted his first LLM-assisted patch to a Linux kernel development branch, addressing a long-standing cache contention issue that occurs when many CPUs read the same file, such as in shared libraries, databases, or web servers. Torvalds says a synthetic benchmark showed a 23x performance improvement, but cautioned that real-world workloads won't see gains anywhere near that figure.
tomshardware.com
· 2026-10-16
Linus Torvalds submitted a set of kernel patches that address a page-cache contention bug causing memory slowdowns on multi-core, multi-thread systems. In his Git submission, Torvalds said the code, test programs, review and first draft of the accompanying text were produced with Claude Code, an AI coding assistant, under his direction. The bug, known since 2024, involves atomic reference-count updates to a shared cache line that force processor cores to compete, slowing performance in workloads with many concurrent small reads.
zdnet.com
· 2026-10-13
Linus Torvalds said AI tools are helping spot security vulnerabilities and improve the Linux kernel, but are also burying maintainers in low-quality bug reports and what he called 'mindless band-aid kind of patches.' He reaffirmed that Linux's progress still relies on incremental, small-scale changes rather than sweeping rewrites.
linux.slashdot.org
· 2026-10-13
At Open Source Summit Europe, Linux creator Linus Torvalds told Dirk Hohndel that he enjoys using AI as a programming tool, particularly for tasks he is less skilled at himself. He cautioned that AI should be used carefully for serious kernel work, noting he mainly acts as a maintainer rather than writing core code. Torvalds also said AI can help new developers rediscover the enjoyment of programming and has become useful for finding and fixing bugs in the Linux kernel.
zdnet.com
· 2026-10-09
An independent benchmark comparing Microsoft's WSL 2.6.3.0 (Linux kernel 6.6.87.2) against the newer WSL 3.0.2.0 (kernel 6.18.40.1) found measurable gains across syscall throughput, scheduler latency, and memory bandwidth. The tests, run on an Alpine Linux 3.23.0 guest with Go 1.27.1 on an Intel i5-8500T host, showed improvements ranging from about 4% on basic syscalls to over 61% on sequential memory copy bandwidth, with context-switch latency dropping roughly 11%.
tonym.us
· 2026-10-07
Gregory Price and a team at Meta have built CRAM, a new Linux memory-compression technique that keeps compressed data directly in RAM instead of routing it through the swap layer like existing tools zswap and ZRAM. CRAM uses a private NUMA node to let Linux manage compressed memory with its normal memory semantics, including migration and ballooning, and includes a mechanism called the 'Chicken Bit' to pause CRAM during allocation management. Early benchmarks cited show read performance gains of up to 452 times over ZRAM.
tomshardware.com
· 2026-10-07
FTL is an operating system design in which each container runs a userspace library implementing core OS functions like Linux process management, a virtual file system, and TCP/IP. A minimal FTL kernel provides the underlying interface for these userspace components to implement Linux system calls, similar to how a hypervisor operates.
ftl-os.org
· 2026-10-03
Debian's security team published advisory DSA-6528-1, addressing nearly 90 CVEs discovered in the Linux kernel. The advisory, issued by Salvatore Bonaccorso, lists vulnerabilities spanning multiple kernel subsystems and recommends users update their systems to the patched packages.
lwn.net
· 2026-10-01
Security researchers at VUsec and Scuola Superiore Sant'Anna developed a new Spectre v2 attack called Branch Target Reuse (BTR), which exploits stale branch predictor data left behind when JIT engines reuse memory addresses for new code. Tested against Firefox's SpiderMonkey, GraalVM, and the Linux kernel's cBPF, the attack can extract a system's root password hash within minutes on Intel processors. The flaws were assigned CVE-2026-64507 and CVE-2026-64508, and fixes have already been merged into the Linux kernel.
bleepingcomputer.com
· 2026-09-29
Phoronix's Michael Larabel reports that a clean x86-64 defconfig Linux kernel build now takes about 15 seconds on his dual AMD EPYC 9575F workstation, down from over 22 seconds before recent Kbuild patches. The speedup stems from work by Linux memory-management developer Lorenzo Stoakes, who used AI/LLM assistance to remove compilation bottlenecks, alongside continued hardware gains.
tomshardware.com
· 2026-09-27
Canonical says it is switching to a unified two-week release cycle for security updates, citing a surge in CVE reports driven partly by AI-assisted vulnerability discovery and the Linux kernel team's decision to become its own CVE Numbering Authority. The company says it will offer interim workarounds or hardening guidance within 24 to 48 hours of disclosure while full patches are prepared.
news.slashdot.org
· 2026-09-26
GoKawiil