Security Research
Independent security research consultancy at the intersection of vulnerability research, AI, and low-level systems.
4K Labs is an independent consultancy founded by sam4k — a security researcher with deep experience in vulnerability research, exploit development, and OS internals.
Current work focuses on AI-augmented security research. Background spans Linux kernel security, low-level internals, and offensive research.
Select published work. Full archive at sam4k.com.
Collection of posts covering a variety of kernel exploitation techniques and mitigations.
2024–25Deep dives into Linux memory management internals.
2024Remote use-after-free in the Linux kernel TIPC subsystem.
2023Analysis of Linux's randomised slab allocation caches.
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