Déjà Vu in Linux io_uring

Talk (slides) by Pumpkin about exploiting CVE-2025-21836 — a race condition that leads to a use-after-free in the io_uring subsystem.

An RbTree Family Drama

Talk (slides) by William Liu and Savino Dicanosa about exploiting CVE-2025-38001 — a use-after-free in the network packet scheduler.

The exploit was also covered in a previously posted article.

Extending Kernel Race Windows Using '/dev/shm'

Article by Faith about extending race condition windows via FALLOC_FL_PUNCH_HOLE. The technique allows delaying user memory accesses from the kernel mode, similar to userfaultfd and FUSE.

Singularity: Deep Dive into a Modern Stealth Linux Kernel Rootkit

MatheuZSec published a detailed article about Singularity — a loadable kernel module rootkit developed for 6.x Linux kernels. The rootkit uses ftrace for hooking syscalls and hiding itself.

CVE-2025-68260: rust_binder: fix race condition on death_list

First CVE was registered for the new Binder kernel driver written in Rust. The vulnerability is a race condition caused by a list operation in an unsafe code block.

mediatek? more like media-rekt, amirite.

Article by hypr covering an assortment of bugs the author found in the MediaTek MT76xx and MT7915 Wi-Fi drivers.

The article also describes the nonsensical responses MediaTek gave to the bug reports, seemingly trying to weasel out of assigning a High impact rating to the reported bugs.

Dangling pointers, fragile memory — from an undisclosed vulnerability to Pixel 9 Pro privilege escalation

Article about analyzing and exploiting a race condition that leads to a double-free in the Arm Mali GPU driver.

Article series about exploiting CVE-2025-38352

Faith posted three articles about exploiting a race condition in the implementation of POSIX CPU timers.

Part 1️⃣ describes reproducing this race condition.

Part 2️⃣ explains how to extend the race window (a period of time when the race can be triggered).

Part 3️⃣ shows a complex PoC exploit for the UAF caused by this race condition.

A 0-click exploit chain for the Pixel 9 Part 2: Cracking the Sandbox with a Big Wave

Article by Seth Jenkins about exploiting a use-after-free in the driver for BigWave — an AV1 decoding hardware component present on Pixel SOCs.

Seth used the bug to escalate privileges from the mediacodec SELinux context and obtain root on Pixel 9.

This exploit is a part of an RCE chain developed by Seth and Natalie Silvanovich.

Dirty Ptrace: Exploiting Undocumented Behaviors in Kernel mmap Handlers

Talk (slides) by Xingyu Jin and Martijn Bogaard about a new type of logical bugs in kernel driver mmap handlers exploitable via the ptrace functionality.

Authors found multiple Android vendor drivers affected by the issue. They also wrote an exploit for the IMG DXT GPU driver to escalate privileges on Pixel 10.

[Cryptodev-linux] Page-level UAF exploitation

nasm_re posted an article about exploiting a page-level UAF in the out-of-tree cryptodev-linux driver. The researcher modified struct file sprayed into a freed page to escalate privileges.

setresuid(⚡): Glitching Google's TV Streamer from adb to root.

Talk (slides) by Niek Timmers about glitching the kernel of the Android-based Google TV Streamer device to escalate privileges via Electromagnetic Fault Injection.

The researcher glitched the setresuid syscall handler to bypass its checks and obtain the UID of 0. Bypassing SELinux via glitching remains to be investigated.