Linternals: Introducing Memory Allocators & The Page Allocator
I know you've all been waiting for it, that's right, we're going to be taking a dive into another exciting aspect of Linux internals: memory allocators!…
Linternals: The Kernel Virtual Address Space
In this part of our journey into virtual memory in Linux, we cover the mystical kernel memory map and all it entails.…
Patching, Instrumenting & Debugging Linux Kernel Modules
An introductory look into patching, instrumenting and debugging Linux kernel modules.…
Linternals: The User Virtual Address Space
We continue our journey to understand virtual memory in Linux, as we take a closer look at the user virtual address space.…
CVE-2022-0435: A Remote Stack Overflow in The Linux Kernel
Recently I discovered a vulnerability in the Linux kernel that's been lurking there since 4.8 (July 2016)! CVE-2022-0435 is a remotely and locally exploitable stack overflow in the TIPC networking module of the Linux kernel…
A Dummy's Guide to Disclosing Linux Kernel Vulnerabilities
A post sharing some insights into the process behind responsibly disclosing vulnerabilities in the Linux kernel...…
Linternals: Introducing Virtual Memory
Alright, let's get stuck into some Linternals! As the title suggests, this post will be exploring the ins and outs of virtual memory with regards to modern Linux systems. I say Linux systems, but this topic, like many in this series, treads the line between examining the Linux kernel and…
Setting Up A Virtualised (Linux) Empire on Apple Silicon
Follow me on my journey moving my virtualisation workflow as a Linux security researcher from Linux x86_64 to MacOS aarch64.…