id: 2628
uid: vXlxP
insdate: 2026-05-09 02:05:36
title: You gave me a u32. I gave you root. (io_uring ZCRX freelist LPE)
additional:

🚨 Linux Kernel Vulnerability: io_uring ZCRX Freelist LPE Exploited

The io_uring ZCRX freelist LPE vulnerability allows an attacker to escalate privileges to root, posing a significant risk to Linux systems. This exploit leverages a flaw in the io_uring's zero-copy receive (ZCRX) functionality, enabling an unprivileged user to gain root access. The vulnerability highlights the importance of robust security measures and timely patching to prevent such privilege escalation attacks.
category: Hacker News
md5:
guid: https://news.ycombinator.com/item?id=48067734
source_url: https://ze3tar.github.io/post-zcrx.html
updated:
image:
author_name: MrBruh
author_link: