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Llama.cpp Heap Overflow Exploit: A 30-Hour Journey to RCE

2025-03-26

Llama.cpp Heap Overflow Exploit: A 30-Hour Journey to RCE

This write-up details a 30-hour journey exploiting a heap overflow in Llama.cpp to achieve remote code execution (RCE). Llama.cpp's unique heap management system thwarted classic ptmalloc exploitation techniques. The author cleverly leveraged Llama.cpp's implementation logic, bypassing multiple security checks to achieve a heap overflow. Through intricate manipulations, RCE was gained. The article provides an in-depth analysis of the vulnerability details, mitigations, and the final exploitation, offering valuable insights for security researchers.

(retr0.blog)

Development heap overflow

55-Year-Old Developer Faces 10 Years for Sabotaging Former Employer's Network

2025-03-10

55-Year-Old Developer Faces 10 Years for Sabotaging Former Employer's Network

A 55-year-old software developer faces up to 10 years in prison for deploying malicious code that crippled his former employer's network, resulting in hundreds of thousands of dollars in damages. Davis Lu, who worked at Eaton Corp. for 11 years, allegedly planted the code after a 2018 corporate restructuring reduced his responsibilities. The malicious code, including a self-activating 'kill switch' named 'IsDLEnabledinAD', caused system crashes, data loss, and globally impacted Eaton Corp. users upon Lu's termination in 2019.

(arstechnica.com)

Development malicious code network sabotage

Listen Notes' 2025 Tech Stack: From Single-Page App to Profitable Podcast Empire

2025-03-05

Listen Notes' 2025 Tech Stack: From Single-Page App to Profitable Podcast Empire

Listen Notes, launched in 2017 as a simple podcast search engine, has evolved into a mature product with a massive database and three user interfaces by 2025. This post details its tech stack, encompassing backend (Python, Django, uwsgi, Nginx), frontend (React, Tailwind), databases (Postgres, Elasticsearch, Redis, ClickHouse), and cloud services (AWS, Google Cloud, Cloudflare). It also shares operational insights, including finance, legal, HR, and marketing, offering valuable lessons for small software companies.

(www.listennotes.fm)

Startup podcast

The Pope's Latinist: Reginald Foster's Extraordinary Life

2025-03-24

The Pope's Latinist: Reginald Foster's Extraordinary Life

Reginald Foster, an extraordinary American priest, served as the Pope's Latin secretary at the Vatican for forty years. More than just a master of Latin, his unique teaching methods cultivated thousands of Latin enthusiasts and profoundly impacted the Church's Latin legacy. This article recounts his legendary life, from being plucked from his order by a powerful cardinal to his unconventional teaching style that fused Latin learning with Roman history and culture. Foster's legacy lives on through the numerous scholars and teachers he trained, breathing new life into the ancient language.

(newcriterion.com)

Misc Latin Vatican

Solving Complex Probability Problems with Model Counting

2025-02-14

This article presents a method for solving complex probability problems using propositional model counters. The author demonstrates, through a simple example, how to translate complex probabilistic relationships into Boolean logic formulas and use a model counter to compute the probability of the final event. This method can handle scenarios with complex causal chains and conditional probabilities, and has important applications in areas such as nuclear power plant safety assessment and quantitative trading. The article also provides an open-source tool, ganak, for performing model counting calculations.

(www.msoos.org)

AI probability calculation model counting causal inference

SVG: Scalable Vector Graphics for Web Design

2025-03-09

SVG: Scalable Vector Graphics for Web Design

This article answers common questions about SVG (Scalable Vector Graphics), covering its definition, image conversion methods, advantages over other formats like PNG and JPEG, sources for free resources, HTML usage, animation techniques, responsive design implementation, optimization, and editing tools. Web designers and developers alike will find practical information on using SVG.

(websvg.com)

Design

Advocating for RSS: One Person's Campaign for Better News Feeds

2025-01-18

Advocating for RSS: One Person's Campaign for Better News Feeds

ReedyBear, a blogger, has been actively advocating for more websites to support RSS feeds. Frustrated by the lack of RSS support on many sites he follows, he's personally contacted government organizations, news outlets, and game companies, successfully persuading some to add RSS. The post encourages readers to join the movement, highlighting the benefits of RSS for a cleaner, more controlled news experience, free from ads and algorithmic biases.

(reedybear.bearblog.dev)

Misc information access user advocacy

GitHub Action Compromise: tj-actions/changed-files Injecting Malicious Code

2025-03-15

GitHub Action Compromise: tj-actions/changed-files Injecting Malicious Code

A critical security incident has compromised the tj-actions/changed-files GitHub Action, impacting over 23,000 repositories. Attackers retroactively modified multiple version tags to point to a malicious commit, exposing CI/CD secrets in public build logs. StepSecurity Harden-Runner detected this anomaly. The compromised Action executes a malicious Python script that dumps secrets from the Runner Worker process. Immediate action is required: stop using the affected Action and review build logs for leaked secrets.

(www.stepsecurity.io)

Development Malicious Code

MTR: A Powerful Network Diagnostic Tool

2025-02-05

MTR combines the functionality of 'traceroute' and 'ping' into a single, powerful network diagnostic tool. It traces the path of a network connection and tests the quality of the link to each hop. Simply specify a destination host, and MTR displays the address and connection quality statistics for each hop, aiding in quick network problem identification. MTR is open-source, cross-platform compatible, though some older binary distributions and online services are defunct. Source code is available on GitHub for compilation, or it can be directly used via distributions like Debian.

(www.bitwizard.nl)

Development network diagnostics

Google TPUs: A Deep Dive into Hardware-Software Co-design for Extreme Performance and Efficiency

2025-06-22

This article delves into the architecture of Google's TPUs, from single-chip to multi-pod levels, detailing how they achieve extremely high throughput and energy efficiency through systolic arrays, ahead-of-time compilation, and a unique interconnect network. The TPU design philosophy centers on hardware-software co-optimization, where the XLA compiler pre-plans memory accesses, minimizing cache usage and thus power consumption. The article also analyzes the impact of different topologies on training performance and how Google uses OCS to enable flexible TPU slice configurations, improving resource utilization.

(henryhmko.github.io)

Hardware

NOAA Releases Chilling Audio of Titan Sub Implosion

2025-02-13

NOAA Releases Chilling Audio of Titan Sub Implosion

The National Oceanic and Atmospheric Administration (NOAA) has released an audio recording capturing the implosion of the Titan submersible, which tragically killed five people during a Titanic exploration mission in June 2023. The recording reveals a distinct sound believed to be the catastrophic failure of the vessel. Investigations into the disaster have uncovered significant design and operational flaws, including prior incidents highlighting safety concerns ignored by OceanGate. The audio adds another layer to the ongoing investigation and underscores the risks involved in deep-sea exploration.

(jalopnik.com)

Tech Titan Submersible OceanGate Titanic

Google Open Sources SpeciesNet: AI for Wildlife Conservation

2025-03-04

Google Open Sources SpeciesNet: AI for Wildlife Conservation

Google has open-sourced SpeciesNet, an AI model that identifies animal species from camera trap photos. Researchers globally use camera traps, generating massive datasets taking weeks to analyze. SpeciesNet, trained on over 65 million images, helps accelerate this process. It classifies images into over 2,000 labels including species, taxa, and non-animal objects. Released under an Apache 2.0 license, SpeciesNet empowers developers and startups to scale biodiversity monitoring efforts.

(techcrunch.com)

AI Species Identification Wildlife Conservation

Bare: A Minimal JavaScript Runtime Reimagining Node.js

2025-04-02

Bare: A Minimal JavaScript Runtime Reimagining Node.js

Holepunch has launched Bare, a groundbreaking minimal JavaScript runtime for desktop and mobile. Fast, modular, and efficient, Bare revisits the original vision of Node.js by embracing modularity and universal compatibility. Designed for peer-to-peer applications, Bare runs cross-platform and seamlessly integrates with Holepunch's Pear runtime, achieving true 'write once, run anywhere' capabilities and revolutionizing app development.

(pears.com)

Development Peer-to-Peer

ByteCraft: Generating Games and Animations with AI

2025-03-19

ByteCraft: Generating Games and Animations with AI

ByteCraft is a groundbreaking AI model capable of generating executable game and animation files from text descriptions. Trained by fine-tuning a 7B parameter LLM, ByteCraft produces files containing diverse elements like characters, sounds, and animations. While many generated files are imperfect, this research represents a significant leap in AI code generation, demonstrating the potential for AI to understand and generate byte-level data. Future improvements, fueled by increased computational power, promise more complete and complex programs, potentially revolutionizing game and animation creation.

(emygervais.github.io)

Game

LLMs Hit a Wall: Einstein's Riddle Exposes Limits of Transformer-Based AI

2025-02-02

LLMs Hit a Wall: Einstein's Riddle Exposes Limits of Transformer-Based AI

Researchers have discovered fundamental limitations in the ability of current transformer-based large language models (LLMs) to solve compositional reasoning tasks. Experiments involving Einstein's logic puzzle and multi-digit multiplication revealed significant shortcomings, even after extensive fine-tuning. These findings challenge the suitability of the transformer architecture for universal learning and are prompting investigations into alternative approaches, such as improved training data and chain-of-thought prompting, to enhance LLM reasoning capabilities.

(www.quantamagazine.org)

AI Compositional Reasoning

Manx: An Open Source Treasure Trove of Vintage Computer Manuals

2024-12-23

Manx is an open-source project dedicated to cataloging and preserving manuals for older computers. It currently boasts nearly 10,000 manuals from 61 websites, covering minicomputers, mainframes, and associated peripherals like terminals and printers. While many manuals are scanned images and not directly indexable by search engines, Manx adds metadata and information to compensate. Its search currently focuses on part numbers, titles, and keywords. For microcomputer manuals, Tiziano's 1000 BiT is a better resource.

(manx-docs.org)

Tech vintage computing manuals

DeepSeek R1 Obliterates OpenAI O1 in Finance: A Chinese AI Triumph

2025-01-21

DeepSeek R1 Obliterates OpenAI O1 in Finance: A Chinese AI Triumph

Recent head-to-head testing of DeepSeek R1 and OpenAI O1 in financial applications revealed a decisive victory for DeepSeek R1. The Chinese AI model significantly outperformed OpenAI's offering across key metrics, highlighting a major breakthrough in Chinese AI capabilities within the finance sector. This result has garnered significant attention, signaling China's growing dominance in the global AI landscape.

(nexustrade.io)

AI AI Finance

Basketball's Data-Driven Revolution: From All-Arounders to Specialists

2025-02-15

Basketball is undergoing a data-driven revolution. Decision-making has shifted from intuition to precise data analysis, transforming the game from a reliance on points, assists, and rebounds to leveraging thousands of data points to optimize every aspect. The three-point shot reigns supreme, and the '3-and-D' player (three-point shooting and defense) is highly sought after. Technology, including motion capture and analytics systems, allows coaches to meticulously analyze player movement, maximizing possession efficiency. While this data-driven approach has made the game more predictable, it raises questions about the future of basketball.

(nabraj.com)

Game basketball analytics player specialization basketball technology

Leaving 18F: A Designer's Exit Amidst Political Turmoil

2025-02-18

Leaving 18F: A Designer's Exit Amidst Political Turmoil

A designer recounts their departure from 18F, a US digital services agency, due to the increasingly hostile political climate and restructuring under the new administration. The author details the positive work culture and collaborative spirit at 18F, contrasting it with the new leadership's thinly veiled attempts to downsize the workforce under the guise of evaluating 'technical wins'. Facing potential dismissal as a probationary employee, the author chose to resign. The narrative transcends a personal account, highlighting the political infighting within the US government, its impact on public services, and the implicit threat to federal employees.

(ethanmarcotte.com)

Misc government layoffs political pressure

Small but Mighty: Redefining Success in the Software Industry

2025-02-18

This article explores how small software companies can thrive against tech giants. The author highlights examples like SQLite, Hwaci, Pinboard, Tarsnap, Sublime Text, and Zig, showcasing their success despite their small size. These companies prioritize high-quality products, unique business models, and customer focus for long-term sustainability. They reject Silicon Valley's 'grow or die' mentality, opting for a more sustainable and fulfilling definition of success. Their human-centric approach fosters strong customer relationships. The author argues that this 'small but mighty' model isn't about lacking ambition, but choosing a different path to success.

(www.scattered-thoughts.net)

Development Software companies business model

VectorChord-BM25: Supercharging PostgreSQL Full-Text Search

2025-03-03

VectorChord-BM25: Supercharging PostgreSQL Full-Text Search

VectorChord-BM25 is a new PostgreSQL extension leveraging the BM25 algorithm and Block WeakAnd algorithm to significantly improve the speed and accuracy of PostgreSQL's full-text search. It simplifies the search process and seamlessly integrates with PostgreSQL. Compared to ElasticSearch, VectorChord-BM25 achieves 3x higher Queries Per Second (QPS) on average for Top 1000 queries and comparable or even superior NDCG@10 scores, but requires careful alignment of tokenization strategies for fair benchmarking.

(blog.vectorchord.ai)

Development

Scaling Up: The Two-Zeroes Challenge

2025-03-01

Scaling Up: The Two-Zeroes Challenge

This article explores the impact of scale on system design. Using bridges as an example, it illustrates the dramatic changes in materials, technology, and engineering management needed to build bridges from 1 meter to 10,000 meters. Each increase of two orders of magnitude (e.g., from 10 to 1,000) necessitates a complete rethinking of the process, requiring the abandonment of prior experience to meet new challenges. This highlights the principle of quantitative change leading to qualitative change, applicable to any field.

(taylor.town)

Tech scale effect engineering challenges

Herbie: Boosting Floating-Point Accuracy

2025-08-07

The Herbie project aims to improve the accuracy of floating-point computations. Over several years, Herbie has released numerous versions, continuously improving algorithms, increasing speed, and adding features like a browser interface and plugins for languages such as Rust and Haskell. Recently, Herbie achieved significant accuracy improvements on the Hamming benchmark suite and added a new platform API for pluggable compilation targets. The Herbie team actively participates in academic research, publishing papers and giving numerous talks, sharing their research findings and future plans.

(herbie.uwplse.org)

Development Herbie project

Design Space for Code Search Queries: ast-grep's Innovative Approach

2024-12-26

Design Space for Code Search Queries: ast-grep's Innovative Approach

ast-grep is an Abstract Syntax Tree (AST)-based code search tool designed for ease of use, expressiveness, and precision. This blog post delves into the design space of code search queries, categorizing them into informal queries, formal queries based on existing programming languages, formal queries using custom languages, and hybrid queries. Each type's strengths and weaknesses are analyzed. ast-grep employs a hybrid approach, allowing users to write queries using familiar programming language syntax and offering more powerful expressiveness through YAML configuration files or a programmatic API for precise code search.

(ast-grep.github.io)

Development code search query design

WordPress Parent Company Sued for Blocking Third-Party Service Provider

2025-02-27

WordPress Parent Company Sued for Blocking Third-Party Service Provider

Automattic, the parent company of WordPress, is accused of breaching its promise of 'forever free' access by blocking the third-party service provider, WPE, leading to significant losses for WPE's clients. WPE alleges that Automattic abused its trademark rights by cutting off access to software updates, security patches, and plugins, and attempted to poach its customers. This has caused a major controversy, with WPE filing a lawsuit claiming Automattic's actions constitute fraud and unfair competition, harming the internet ecosystem.

(arstechnica.com)

Tech Lawsuit

How Interruptions Impact Software Engineers: A Research Deep Dive

2025-01-20

How Interruptions Impact Software Engineers: A Research Deep Dive

New research explores how interruptions affect software engineers' productivity and stress. The study found that different types of interruptions (e.g., in-person vs. on-screen notifications) impact coding, code comprehension, and code review differently, with complex tasks being less affected. Interestingly, physiological data (heart rate variability) showed less stress with in-person interruptions, but engineers perceived them as more stressful. Managers should prioritize engineers' perceived stress, minimizing high-priority interruptions and providing focused time for tasks like coding to boost team efficiency.

(rdel.substack.com)

Development interruptions

X (formerly Twitter) Appears to Block Links to Signal

2025-02-18

X (formerly Twitter) Appears to Block Links to Signal

X, the social media platform formerly known as Twitter, is reportedly blocking links to the encrypted messaging app Signal, according to journalist Matt Binder and other users. Links to Signal.me, a domain for directly connecting with Signal users, are blocked on posts, DMs, and profiles, resulting in error messages. While links to Signal handles and the main Signal website remain functional, previously posted Signal.me links now display a warning. This move has sparked speculation about X's reasons for restricting Signal.

(arstechnica.com)

Tech

Server-Sent Events (SSE): An Underrated Real-time Data Streaming Solution

2024-12-25

Server-Sent Events (SSE): An Underrated Real-time Data Streaming Solution

This article explores Server-Sent Events (SSE), a simpler and more efficient one-way real-time communication solution compared to WebSockets. SSE leverages standard HTTP protocols, making it easy to implement and deploy, compatible with existing infrastructure, resource-efficient, and featuring automatic reconnection. The article details SSE's workings, advantages, and application scenarios (like real-time news, stock tickers, progress bars, etc.), showing code examples with Flask and JavaScript. Furthermore, it analyzes how LLMs like ChatGPT utilize SSE for streaming responses and points out SSE's limitations, such as unidirectional communication and data format restrictions. In short, SSE provides an elegant solution for many applications requiring unidirectional real-time data streams.

(igorstechnoclub.com)

Development Server-Sent Events Real-time Communication

Don't Use SQLite in Production!

2025-02-18

Don't Use SQLite in Production!

Terreateam shares their experiences using Fly.io and SQLite. While Fly.io heavily promotes server-side SQLite, the author argues against using it as a primary data store in production unless there's a compelling reason. This adds complexity with backups, high availability configurations (like LiteFS and Consul), and migration to other databases (like PostgreSQL) becomes challenging. The post uses the Atlantis project as an example, highlighting the high-availability challenges of using database-as-a-library solutions (like BoltDB and SQLite), ultimately recommending a traditional database architecture for production unless there's a very clear need to diverge for better scalability and reliability.

(pid1.dev)

Development Production

Linux 6.14 Brings Much Faster Suspend/Resume Times

2025-01-26

Linux kernel 6.14 boasts significantly faster suspend and resume times for some systems thanks to an ACPI update. The change replaces msleep() with usleep_range() in acpi_os_sleep(), reducing spurious delays caused by timer inaccuracies. Testing shows dramatic improvements, with some Dell XPS laptops seeing suspend/resume times drop from 8 seconds to around 1 second. This optimization is particularly beneficial for systems relying on short sleep times, such as those using tight loops with ASL Sleep(5ms).

(www.phoronix.com)

Development Suspend/Resume

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