A security engineer focusing on fuzzers, exploits, and mitigations for Linux and Android kernels.

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• 📲 Debugging the Pixel 8 kernel via KGDB

  

  This article shows how to use GDB over a serial connection for debugging the kernel on a Pixel 8.

  The instructions cover building and flashing a custom Pixel 8 kernel to enable KGDB, breaking into KGDB either via ADB by relying on /proc/sysrq-trigger or purely over a serial connection by sending the SysRq-G sequence, and attaching GDB to the Pixel 8 kernel.

  The instructions should be adaptable to other Pixels as well.

• 🧱 SLUB Internals for Exploit Developers

  A talk that covers the SLUB allocator internals and explains how common Slab shaping approaches work for exploiting Slab memory corruption bugs.

• 🥥 Linux Kernel Security channel

  

  A Telegram channel about Linux kernel security. Me and Alexander Popov regularly post links to materials about exploits, fuzzers, mitigations, and other security-related things there.

  The posts are also mirrored on X, Bluesky, Mastodon, and Reddit.