https://kiperz.dev/notes/ Recent content in Notes on kiperZ Hugo -- 0.147.7 en Wed, 07 Oct 2026 00:00:00 +0000 https://kiperz.dev/notes/kernel-heap-spray-cheatsheet/ Wed, 07 Oct 2026 00:00:00 +0000 https://kiperz.dev/notes/kernel-heap-spray-cheatsheet/ <p>A reference card for picking spray objects during SLUB exploitation: which kernel object lands in which <code>kmalloc</code> cache, whether it is plain or memcg-accounted, whether you control its bytes, and which field leaks an address or reaches RIP. It is built for use under time pressure during a CTF or an engagement, so it leans on tables and short snippets rather than prose. Every size, flag, symbol, and version threshold was checked against the source; where a fact depends on the kernel version, the sheet says so instead of giving one absolute number.</p>