sam4k's Avatar

sam4k

@sam4k.com

pwning kernels & blogging on os internals ๐ŸŒฑ

214
Followers
69
Following
8
Posts
07.06.2023
Joined
Posts Following

Latest posts by sam4k @sam4k.com

Thank you!! I'm glad they're helpful ๐Ÿ™Œ

03.06.2025 12:56 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
Kernel Exploitation Techniques: Turning The (Page) Tables This post explores attacking page tables as a Linux kernel exploitation technique for gaining powerful read/write primitives.

with offensivecon around the corner, i figured id write another post on linux kernel exploitation techniques - this time i cover the world of page table exploitation! enjoy ๐Ÿค“

sam4k.com/page-table-k...

08.05.2025 13:58 ๐Ÿ‘ 13 ๐Ÿ” 4 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Post image

Diving into Linux kernel security

Alexander Popov published his H2HC talk slides that describe how to get started with learning Linux kernel security and knowingly configure the security parameters of Linux-based systems.

a13xp0p0v.github.io/img/Alexande...

18.12.2024 14:25 ๐Ÿ‘ 4 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Post image

We are extending our call for papers to January 1, 2025!

We are now targeting an end of January release.

If you have any Linux/ELF related research, projects, or papers, we would love to publish them!

Huge thank you to everyone who has already submitted!

tmpout.sh/blog/vol4-cf...

16.12.2024 21:36 ๐Ÿ‘ 34 ๐Ÿ” 19 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
Linternals: Exploring The mm Subsystem via mmap [0x01] In this series we'll explore the Linux kernel's memory management subsystem, using a simple userspace program as our starting point.

it's been a while, but here's a new post in my linternals series where i attempt to introduce the linux kernel's memory management subsystem ๐Ÿง

sam4k.com/linternals-e...

16.12.2024 14:05 ๐Ÿ‘ 8 ๐Ÿ” 3 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

for anyone interested in linux kernel or android security research, i'm experimenting with a custom feed here bsky.app/profile/did:...

03.12.2024 19:45 ๐Ÿ‘ 5 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Post image

Novel approach to exploit a limited OOB on Ubuntu at Pwn2Own Vancouver 2024

Slides from a talk by Pumpkin Chang about exploiting a stack out-of-bounds write bug in the traffic control subsystem.

u1f383.github.io/slides/talks...

27.11.2024 18:51 ๐Ÿ‘ 8 ๐Ÿ” 5 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Preview
oss-sec: StackRot (CVE-2023-3269): Linux kernel privilege escalation vulnerability

pretty cool UAF in the handling of stack expansion in kernels 6.1 - 6.4 https://seclists.org/oss-sec/2023/q3/4

05.07.2023 13:48 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Post image Post image Post image Post image

took so many photos exploring seoul, feel obliged to at least share a few

19.06.2023 13:55 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Post image

just got back from speaking on kernel exploitation at typhooncon in seoul: awesome organisers, attendees and city :)

19.06.2023 13:54 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

heading off to seoul tomorrow, super excited for my first time in south korea and at typhooncon

08.06.2023 22:22 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0