Parth Patel rigalis
Home Blog Work About
ON THIS PAGE
Introduction Anatomy of a Heap Chunk Chunk flags, AMP bits The Double-Free Vulnerability Example: vulnerable C tcache & Modern Hardening Recall Exploitation Lab Visualising Corruption Mitigations & Fixes Footnotes
ESC
Type to search blog, work, pages…
Parth Patel rigalis
Home Blog Work About

Blog

Binary notes, reverse engineering, and design explorations.

⌕
Sep 14, 2026·14 min read·CTF Writeups

Shaders, a Signing Block, and a Self-Modifying VM [z0d1ak CTF]

Finding a 32-byte bearing hidden behind shader math and debugger traps, then cracking a self-modifying license VM by hand.

Read →
Shaders, a Signing Block, and a Self-Modifying VM [z0d1ak CTF]
May 18, 2026·18 min read·Binary Analysis

Deep Dive: Hunting Heap Overflows in ELF Binaries

An in-depth analysis of glibc allocator dynamics, heap chunk structures, and exploiting classic double-free & heap corruption - demo showcases a left progress index, right marginalia, callouts, figures, tables, footnotes.

Read →
Deep Dive: Hunting Heap Overflows in ELF Binaries
GitHub

© 2026 rigalis.dev. Built with Astro.