cve_2026_31431

CVE-2026-31431 "Copy Fail" Toolkit Detector and proof-of-concept LPE for the Linux algifaead / authencesn page-cache scratch-write bug disclosed 2026-04-29. Disclosure writeup: https://xint.io/blog/copy-fail-linux-distributions Authorization Use only on hosts you own or are explicitly engaged to...

CVE-2026-43284

🚨 CVE-2026-43284 - Dirty Frag 🚨 Universal Linux Kernel Local Privilege Escalation 📋 Overview Dirty Frag also known as Copy Fail 2 is a high-impact local privilege escalation vulnerability in the Linux kernel. It allows an unprivileged local user to obtain root privileges on affected systems...

copy-fail-CVE-2026-31431-detection-probe

Linux Kernel LPE Probe Suite — Copy Fail & Dirty Frag Safe detection tooling for two related Linux kernel local privilege escalation vulnerability families — Copy Fail CVE-2026-31431 and Dirty Frag CVE-2026-43284 / CVE-2026-43500 — both affecting all major distributions since 2017, both exploitab...

dirtyfrag

Dirty Frag: Universal Linux LPE Abstract This document describes the Dirty Frag vulnerability class, first discovered and reported by Hyunwoo Kim @v4bel, which can obtain root privileges on major Linux distributions by chaining the xfrm-ESP Page-Cache Write CVE-2026-43284 vulnerability and the...

vcheck

vcheck Audita un host Linux remoto a través de SSH en busca de las vulnerabilidades de módulos del kernel Copy Fail y Dirty Frag y, opcionalmente, aplica mitigaciones:...

Dirty-Frag-Research-CVE-2026-43284-

CVE-2026-43284 Dirty Frag – Linux Kernel Vulnerability Research Overview This repository documents a complete defensive security research project focused on CVE-2026-43284 Dirty Frag , a Linux kernel vulnerability affecting the XFRM/IPsec networking subsystem. The goal of this project is not to...

dirtyfrag-detection-rules

dirtyfrag-detection-rules Detection rules and analysis for Dirty Frag CVE-2026-43284/CVE-2026-43500 Linux kernel LPE vulnerability. Based on community research and health probe configurations...

Linux Distros Unpatched Vulnerability : CVE-2026-93105

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - esp: do not unref managed frag pages in espssgunref espssgunref releases the page references held on the source scatterlist after the AEAD operation completes. ...

CVE-2026-93105

In the Linux kernel, the following vulnerability has been resolved: esp: do not unref managed frag pages in espssgunref espssgunref releases the page references held on the source scatterlist after the AEAD operation completes. It calls skbpageunref on every frag page for an out-of-place transfor...

CVE-2026-93105

This Linux kernel vulnerability affects the IPsec ESP subsystem, specifically the esp_ssg_unref() function. The function unconditionally drops page references on skb frag pages after an AEAD transform, but fails to account for managed frags (SKBFL_MANAGED_FRAG_REFS)—pages owned by a zerocopy ubuf...

DirtyFrag-for-dummies

Dirty Frag / CVE-2026-43284 — Notes de Recherche Aperçu Ce dépôt contient un diagramme technique nettoyé et des notes de support pour la vulnérabilité du noyau Linux communément appelée Dirty Frag et suivie pour le chemin xfrm-ESP sous le nom CVE-2026-43284. Le problème appartient à la classe plu...

afalg-check

Itsumma AFALG Check Diagnostic utility for Linux that checks: availability of AFALG / algifaead and helps assess the risk of CVE-2026-31431 copy-fail; the presence of an attack surface for the Dirty Frag vulnerability class xfrm-ESP Page-Cache Write + RxRPC Page-Cache Write chain across the esp4,...

yc-mk8s-copy-fail-mitigation

Copy Fail / Dirty Frag Mitigation for Yandex Managed Kubernetes Automatic application of mitigation for vulnerabilities CVE-2026-31431, CVE-2026-43284 and CVE-2026-43500 in the Linux kernel on all worker nodes of a Yandex Managed Kubernetes cluster. Vulnerability Description CVE ID: CVE-2026-4328...

dirtyfrag-patches

Dirty Frag — Kernel Patches Patch series for the Dirty Frag vulnerability class discovered by Hyunwoo Kim @v4bel. Dirty Frag allows an unprivileged local user to overwrite arbitrary bytes of the page cache of read-only files e.g. /usr/bin/su, /etc/passwd leading to local privilege escalation to...

DirtyFrag-Detector

🔍 Dirty Frag — CVE-2026-43284 / CVE-2026-43500 Detection Script TL;DR: There are two new Linux kernel bugs. This script tells you if you're vulnerable. Patch your stuff. What's this about? On May 7th 2026, a vulnerability class called Dirty Frag was publicly disclosed by security researcher Hyunw...

dirty-frag-check

Vérification Dirty Frag CVE-2026-43284 / CVE-2026-43500 Outil en lecture seule pour les vulnérabilités locales root « Dirty Frag » du noyau Linux CVE-2026-43284, CVE-2026-43500. Vérifie la version du noyau, l'état des modules, le livepatch KernelCare et toute liste noire modprobe que vous avez...

copy-fail-blocker

copy-fail-blocker BPF-LSM mitigation for CVE-2026-31431 "Copy Fail" and the RxRPC variant of Dirty Frag, and for similar privilege-escalation vulnerabilities that depend on userspace access to a kernel-side in-place crypto path reachable via the AFALG or AFRXRPC socket families. A small DaemonSet...

Dirty-Frag-Kubernetes-PoC

Dirty Frag CVE-2026-43284 — Kubernetes Container Escape PoC A proof-of-concept demonstrating how a default, unprivileged Kubernetes Pod can achieve node-level code execution on Amazon EKS by exploiting the Dirty Frag Linux kernel page-cache corruption vulnerability through shared container image...

Paranoid-Dirty-Frag-CVE-2026-43284

Script d'atténuation Dirty Frag Ce script : 1. Bloque le chargement des modules noyau vulnérables 2. Les décharge s'ils sont actuellement actifs 3. Vérifie l'état de l'atténuation AVERTISSEMENT : Désactive la prise en charge IPsec ESP de Linux esp4/esp6 et la prise en charge RxRPC...

almalinux-fix-cve-2026-31431

CVE-2026-31431 algifaead and Dirty Frag CVE-2026-43284 Vulnerability Fix Updates the system to close the CVE-2026-31431 algifaead and Dirty Frag CVE-2026-43284 vulnerabilities found in the Linux kernel and automatically sets the secure kernel version as the default. English: This script...