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...

DEBIAN-CVE-2026-99222

In the Linux kernel, the following vulnerability has been resolved: keys: Protect the read method check against type removal keyctlreadkey checks key-type-read without holding key-sem. A reference keeps the key alive, but does not pin the module containing its type. A surviving RxRPC key can...

PT-2026-135511

In the Linux kernel, the following vulnerability has been resolved: keys: Protect the read method check against type removal keyctl read key checks key-type-read without holding key-sem. A reference keeps the key alive, but does not pin the module containing its type. A surviving RxRPC key can...

CVE-2026-31635-DirtyDecrypt

CVE-2026-31635 · DirtyDecrypt Linux local privilege escalation in the RxRPC/GSSAPI decryption path. A missing skbcowdata check in rxgkdecryptskb allows an unprivileged local attacker to corrupt page cache pages and overwrite in-memory contents of read-only files. Contents Overview Quick Start...

DIRTY-FRAG-Detection-with-Wazuh-4.14.4

DIRTY FRAG Detection with Wazuh 4.14.4 - CVE-2026-43284 / CVE-2026-43500 Detection engineering for the Dirty Frag kernel LPE - Ubuntu / RHEL / Debian / Amazon Linux What is Dirty Frag? CVE-2026-43284 / CVE-2026-43500 is a Linux kernel Local Privilege Escalation LPE that chains two independent...

CVE-2026-43284

Dirty Frag: Universal Linux LPE Abstract This document explains the Dirty Frag vulnerability class, discovered and reported by Hyunwoo Kim @v4bel. By chaining xfrm-ESP Page-Cache Write CVE-2026-43284 with RxRPC Page-Cache Write CVE-2026-43500, an attacker can escalate to root on major Linux...

DirtyFrag

Dirty-Frag Linux CVE-2026-43284 & CVE-2026-43500 Copied from @V4bel : Thanks : 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...

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...

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...

Dirty-Frag-Analysis

Dirty Frag Deep Technical Analysis CVE-2026-43284 xfrm-ESP / CVE-2026-43500 RxRPC Linux kernel local privilege escalation vulnerability — PoC reverse engineering · Shellcode breakdown · Patch principles · Detection script Vulnerability Overview Dirty Frag exploits two independent vulnerabilities,...

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...

Paranoid-Dirty-Frag-CVE-2026-43284

Dirty Frag mitigation script This script: 1. Blocks vulnerable kernel modules from loading 2. Unloads them if currently active 3. Verifies mitigation status WARNING: Disables Linux IPsec ESP support esp4/esp6 and RxRPC support. This may break: - strongSwan - libreswan - some enterprise VPNs -...

DirtyFrag-go

dirtyfrag-go Two bugs. One shell. No disk writes. Go port of dirtyfrag CVE-2026-43284 / CVE-2026-43500. How it works tl;dr The bug class is in the Linux kernel XFRM subsystem. When a file page is spliced into a pipe and then into an ESP-encrypted socket, the kernel decrypts the ESP payload in-pla...

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,...

CVE-2026-43284

🚨 CVE-2026-43284 — Dirty Frag 🚨 Universal Linux Kernel Local Privilege Escalation Overview Field| Detail ---|--- CVE| CVE-2026-43284 xfrm/ESP + CVE-2026-43500 RxRPC Nickname| Dirty Frag CVSS| 7.8 HIGH Type| Local Privilege Escalation LPE Introduced| Linux kernel 4.10 2017, commit cac2661c53f3...

Dirty-Frag-CVE-2026-43284

Dirty Frag CVE-2026-43284 and CVE-2026-43500 Exploit Reproduction and Detection Lab for a Linux kernel local privilege escalation chain. Status: VERIFIED. I completed the reproduction, the fileless verification, and the syscall-level detection in the lab kernel 6.18.9+kali-amd64. This document is...

SG-2026-0024

Dirty Frag primitive-only PoC Readable N4C demonstrator for CVE-2026-43284 XFRM/ESP and CVE-2026-43500 RxRPC/RXKAD. The PoC answers one question: can an unprivileged process change the page cache of a root-owned, read-only file through a sharedskbuff fragment? It does not overwrite /usr/bin/su or...

CVE-2026-74433

A flaw was found in the Linux kernel's rxrpc component, specifically within the rxgkissuechallenge function. This Use-After-Free UAF vulnerability occurs because a memory page containing challenge content is prematurely freed before a tracepoint invocation, causing a pointer to reference freed...

Unity Linux 20.1020e / 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-142712)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-142712 advisory. In the Linux kernel, the following vulnerability has been resolved: afs: Fix callback service message parsers to pass through -EAGAIN The AFS filesystem client uses ...

CLSA-2024-1727817133 Fix of 73 CVEs

CVE-url: https://ubuntu.com/security/CVE-2024-26752 - l2tp: pass correct message length to ip6appenddata CVE-url: https://ubuntu.com/security/CVE-2021-47188 - scsi: ufs: core: Improve SCSI abort handling CVE-url: https://ubuntu.com/security/CVE-2024-26677 - rxrpc: Fix delayed ACKs to not set the...