Enhancing FineIBT

LWN article that describes the talk by Scott Constable and Sebastian Österlund about the ongoing work to improve FineIBT (Fine-grain Control-flow Enforcement with Indirect Branch Tracking).

The article also refers to another post "A hole in FineIBT protection" about a method to bypass this CFI mechanism.

Slice: SAST + LLM Interprocedural Context Extractor

Amazing article by Caleb Gross about combining the use of CodeQL and LLMs to reliably rediscover CVE-2025-37899 — a remotely-triggerable vulnerability in the ksmbd module.

LinkPro: eBPF rootkit analysis

Théo Letailleur published an article with a detailed denoscription of an eBPF rootkit that hides itself on the compromised system and activates its features upon receiving a "magic packet".

Race Condition Symphony: From Tiny Idea to Pwnie

Slides from a talk by Hyunwoo Kim and Wongi Lee about exploiting CVE-2024-50264 — a race condition in the vsock subsystem.

Previously, Alexander Popov described another way to exploit this vulnerability.

CUDA de Grâce

Talk (slides) by Valentina Palmiotti and Samuel Lovejoy about exploiting a race condition that leads to a double-free in the NVIDIA GPU driver to escape a container created with NVIDIA Container Toolkit.

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.