GhostLock, a stack-UAF that has existed in all Linux distributions for 15 years

138 ranger_danger 2026-07-12 21:15:04 UTC nebusec.ai Qwen Share 54

GhostLock (CVE-2026-43499) is a Linux kernel use-after-free vulnerability in rtmutex code, enabling privilege escalation via a dangling pointer from a freed stack frame. Exploited through a race condition and controlled memory overwrite, it allows unprivileged users to execute arbitrary code, fixed in Linux 7.1.

Cyberpunk Comics, Manga and Graphic Novels

115 zdw 2026-07-12 23:15:04 UTC shellzine.net Qwen Share 24

A curated list of cyberpunk works (1975–2016) spans Western comics, manga, and graphic novels, featuring *Akira*, *Blade Runner*, and *Ghost in the Shell*, exploring dystopia, tech, and societal critique. Themes include virtual reality, AI, and post-apocalyptic settings, with entries like *The Long Tomorrow* and *Transmetropolitan* highlighting genre evolution and speculative futures.

Tiny Emulators

176 naves 2026-07-12 21:15:04 UTC floooh.github.io Full Share 10

Ask HN: Add flag for AI-generated articles

196 levkk 2026-07-13 02:15:04 UTC news.ycombinator.com Qwen Share 131

HN users debate adding an AI-generated article flag to let readers opt-out, alongside a two-axis voting system (good/bad, AI/human), while acknowledging enforcement challenges, YC's AI investments, and stigma risks. Current guidelines ban AI in comments but not submissions, with concerns over moderation, gaming, and community divisiveness.

So you want to learn physics (second edition, 2021)

126 azhenley 2026-07-12 21:15:04 UTC susanrigetti.com Qwen Share 18

A self-study physics guide created to help non-traditional learners has aided over 600,000 people, offering a structured curriculum from undergraduate to graduate levels. It emphasizes problem-solving, accessible resources, and addresses gaps in formal education, inspiring self-directed exploration of physics through comprehensive textbooks and practical advice.

Designing and assembling my first PCB

68 tadasv 2026-07-12 23:15:04 UTC vilkeliskis.com Qwen Share 24

The user designed and assembled a custom BME280 sensor PCB using KiCad, successfully replicating its I2C interface and achieving plug-and-play functionality after soldering. This hands-on experience with PCB design, assembly, and testing boosted their confidence to tackle more complex hardware projects like integrating an ESP32, LCD, and sensors on a single board.

1970 Plymouth Hemi 'CUDA

6 frobinson47 2026-07-13 03:25:04 UTC knuckledustchronicles.com Prefix Share 1

There are muscle cars, and then there are statements. The 1970 Plymouth Hemi ‘Cuda is a statement. It’s the kind of car that doesn’t just turn heads, it stops time. If you’ve ever seen one in person, you know what I mean. There’s a moment that happens when you’re standing next to a Hemi ‘Cuda where your brain quietly registers that you are in the presence of something that should not exist. ...

First look at Quest, the final ship of Antarctic explorer Shackleton

11 curmudgeon22 2026-07-13 02:15:04 UTC cbc.ca Qwen Share 0

Canadian expedition reveals first images of Shackleton's ship Quest, wrecked in 1962 and now tangled in fishing nets 400 meters below Labrador Sea. The $million mission aims to document damage and create a 3D model of the historic wreck.

Ask HN: What Are You Working On? (July 2026)

96 david927 2026-07-12 22:15:04 UTC news.ycombinator.com Qwen Share 283

Working on iOS app improvements and multiplatform C projects with X11/wasm. LLM coding diminished coding's joy, sparking thoughts of a new hobby.

Why Vanilla JavaScript

97 guseyn 2026-07-12 23:15:04 UTC guseyn.com Qwen Share 51

Developed a complex music education web app using vanilla JavaScript and Web Components, avoiding frameworks like React/Angular to bypass artificial complexity. Criticizes modern frameworks for adding unnecessary build steps and abstractions, advocating native HTML/CSS/JS with custom tools (EHTML, e-ui) for scalable, maintainable solutions.

Claude Code sends 33k tokens before reading the prompt; OpenCode sends 7k

499 systima 2026-07-12 19:15:04 UTC systima.ai Qwen Share 279

Claude Code incurs ~33,000-token overhead per request (vs OpenCode’s ~7,000) due to extensive system prompts, tools, and mid-session rewrites, while OpenCode’s stable, cached prefixes minimize costs. Subagent workflows amplify Claude Code’s token usage 54x vs OpenCode’s lean design, with configuration files and MCP servers further inflating baseline costs.

Migrating a production AI agent to GPT-5.6: 2.2x faster, 27% cheaper

157 brryant 2026-07-12 17:15:04 UTC ploy.ai Qwen Share 58

Ploy upgraded to GPT-5.6 Sol, outperforming Claude Opus with 2.2× faster builds, 27% lower costs, and cleaner code, but required fixing tool-call handling, caching, and reasoning replay to address model-specific behaviors and ensure fair evaluation.

LARP – Revenue infrastructure for serious founders

182 BerislavLopac 2026-07-12 17:15:04 UTC larp.website Qwen Share 39

LARP is a satirical platform mocking legal circular revenue deals where companies mutualize revenue without cash movement, critiquing financial reporting's focus on numbers over real economic value. It highlights how accounting rules allow such practices, blurring lines between legitimate growth and illusion.

Kode Dot Programmable pocket device for makers, pentesters and geeks

53 iNic 2026-07-12 22:15:04 UTC kode.diy Qwen Share 14

Kode Dot is a handheld, all-in-one platform with dual ESP32-P4/C5 MCUs, AMOLED touchscreen, sensors, wireless, and 16 programmable pins for instant prototyping. It supports Wi-Fi, Bluetooth, NFC, and community-developed apps, born from a 16,000-backer Kickstarter success.

I Learned to Read Again

115 georgex7 2026-07-12 19:15:04 UTC substack.magazinenongrata.com Qwen Share 48

Sam Kahn traces his declining reading habit due to social media, work, and shifting cultural values, battling digital addiction and societal pressures. He revives reading through disciplined strategies, stressing its role in sustaining deep thought and cultural continuity amid modern distractions.

Why write code in 2026

125 softwaredoug 2026-07-12 18:15:04 UTC softwaredoug.com Qwen Share 164

Building a software factory requires agents for automation and humans to maintain architectural integrity through active code engagement. Writing code fosters ownership, precision, and system resilience, preventing fragility amplified by over-reliance on AI-generated solutions.

How we can reduce traffic congestion

93 raahelb 2026-07-12 17:15:04 UTC research.google Qwen Share 113

Google's study shows rerouting 2% of trips via navigation apps in 10 US cities improved traffic speeds by 2% and reduced emissions, demonstrating scalable, low-cost congestion relief. The experiment establishes a framework for network-level traffic optimization using connected systems.

Are you telling me a readonly property is wrecking my performance?

3 forthwall 2026-07-13 03:15:04 UTC shub.club Prefix Share 0

I was deep into investigating a performance issue with Letta Desktop lately; the story was same old same old, the greater the use, the slower the product. This seemed pretty obvious to me probably just some long running for loop, or unoptimized code. What came to my realization was that actually the issue has nothing to do with my code (well, it did still, but, it was based on a bad ...

Vint Cerf, “father of the Internet”, is retiring

289 compiler-guy 2026-07-12 04:15:04 UTC techcrunch.com Qwen Share 166

Vint Cerf, co-creator of TCP/IP and retiring Google VP, emphasized standardized protocols for AI agent interoperability at a conference, while panelists discussed open-source sustainability and challenges in AI centralization. His legacy includes pioneering internet protocols and advocating for structured communication over natural language ambiguity.

Automation Without Understanding

104 root-parent 2026-07-12 17:15:04 UTC arxiv.org Qwen Share 44

The essay warns that AI's mathematical advancements paired with U.S. declining math education risk strategic failure by eroding critical infrastructure. It proposes treating math capacity as a strategic asset and requiring formal, auditable AI reasoning.

The four horsemen behind Postgres outages

25 craigkerstiens 2026-07-13 01:15:04 UTC malisper.me Qwen Share 11

Postgres outages often stem from vacuum I/O contention, transaction wraparound, connection limits, and poor JSON query planning. pgrust aims to address these via thread-based architecture, adaptive planning, and improved JSON handling.

Profiling the "Abundance" housing bottleneck with real data

34 laxmena 2026-07-12 22:15:04 UTC laxmena.com Qwen Share 16

The book "Abundance" argues regulatory bottlenecks ("chosen scarcity") hinder progress in housing and energy, but the user's analysis of cities like Austin and San Francisco shows mixed results. Vienna's success with public housing reveals alternative solutions, emphasizing the need to verify claims with data and consider multiple approaches.

Calculix: A Free Software Three-Dimensional Structural Finite Element Program

9 joebig 2026-07-13 01:15:04 UTC calculix.de Prefix Share 1

For a quick overview of the capabilities of CalculiX the results of an investigation of a small jet engine are presented. The jet engine was built around a turbo-charger rotor in the early 90's by Andreas Funke and the author Klaus Wittig. The FE-model was built from scratch with CalculiX and the compressor- and turbine models together with solver input files can be found in the ...

Flash-MSA: Accelerating Million-Token Training with Sparse Attention Kernels

31 rawsh 2026-07-12 21:15:04 UTC nanduruganesh.github.io Qwen Share 1

The author introduces the first open-source training kernels for Minimax Sparse Attention (MSA) in CuTeDSL, optimizing block-based selection with max-pooling, GQA groups, and efficient caching for Hopper/Blackwell GPUs. Key innovations include fused backward passes, reduced register usage, and scalable CP strategies, though challenges like low occupancy and tensor-pipe bottlenecks remain.

Against Usefulness

92 supo 2026-07-12 18:15:04 UTC motivenotes.ai Qwen Share 24

The essay explores how foundational, often "useless" research fuels future innovations, exemplified by Folk Computer, an open-source physical computing system. It calls for independent thinkers and patrons to support paradigm-shifting work, bridging the gap between institutional legacy and grassroots creativity.

Mechanistic interpretability researchers applying causality theory to LLMs

90 adunk 2026-07-12 18:15:04 UTC cacm.acm.org Qwen Share 66

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Modernizing Property Tax Assessments in Allegheny County

31 mooreds 2026-07-13 02:15:04 UTC prohousingpgh.org Qwen Share 16

The report demonstrates that open-source methods can produce fair, transparent property assessments in Allegheny County at low cost, improving accuracy and public trust. It advocates for regular reassessments to enhance tax equity and efficiency, supported by an open tool for resident access.

I love LLMs, I hate hype

361 therepanic 2026-07-12 19:15:04 UTC geohot.github.io Qwen Share 224

The author is enthusiastic about AI progress, including LLMs and coding agents, but criticizes fear-mongering narratives of AI dominance. They argue that value creation, driven by Moore's law, isn't captured by closed labs, advocating for open-source solutions.

What xAI's Grok build CLI sends to xAI: A wire-level analysis

418 jhoho 2026-07-12 04:15:04 UTC gist.github.com Embed Share 161

Ghostel.el: Terminal emulator powered by libghostty

267 signa11 2026-07-12 09:15:04 UTC dakra.github.io Qwen Share 52

Ghostel is an Emacs terminal emulator using libghostty-vt, offering modern VT features like Kitty protocols, rich underlines, and OSC 8 hyperlinks. It integrates with Emacs via Elisp and a Zig-native module, supporting shell commands, password prompts, and TRAMP remote terminals.