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...

Copyfail-sh

copyfail-sh No race. No offsets. No prebuilt binary to blindly trust. A bash implementation of CVE-2026-31431 Copy Fail. The script compiles a minimal C helper inline at runtime. The bash layer handles architecture detection, payload decompression and target selection; the C layer does the actual...

Fragnesia-go

fragnesia-go One SA. One byte at a time. No race. Go port of fragnesia CVE-2026-46300. Member of the Dirty Frag vulnerability class - separate bug, same surface, own patch. How it works tl;dr The bug is in the Linux XFRM ESP-in-TCP subsystem. When TCPULP espintcp is installed on a socket after da...

CVE-2026-31431-Copy-Fail-add-arm64

Vulnerability Overview Item| Content ---|--- CVE ID| CVE-2026-31431 Vulnerability Name| Copy Fail Vulnerability Type| Linux Kernel Local Privilege Escalation LPE CVSS 3.1 Score| 7.8 HIGH CWE| CWE-669: Incorrect Resource Transfer Between Spheres Affected Scope| All Linux kernels built between 2017...

cve-2026-31431

CVE-2026-31431 Copy Fail Toolkit This repository contains detectors and a PoC for the Linux algifaead / authencesn page-cache scratch-write vulnerability CVE-2026-31431. Disclosure article: https://xint.io/blog/copy-fail-linux-distributions Authorization Notice Only use this on hosts you own or...

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...

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-2022-22706-poc

CVE-2022-22706 - Page-Cache Write The Arm Mali GPU driver hands userspace a CPU-writable mapping of pages it pinned read-only, so an unprivileged process gets a writable alias of the page cache backing a file it can only open ORDONLY. exploit.c blanks root's password field in the /etc/passwd page...

copy-fail-cve-2026-31431-linux-kernel-page-cache-lpe

Copy Fail CVE-2026-31431 - Vulnerability Checker Conceptual validation script for CVE-2026-31431 "Copy Fail" — a Linux kernel local privilege escalation via algifaead page-cache write. Vulnerability CVE-2026-31431 is a logic bug in the Linux kernel's authencesn AEAD template. When combined with...

CVE-2026-46300

CVE-KERNEL · Linux Kernel LPE Chain Multi-CVE Local Privilege Escalation chain for Linux kernel vulnerabilities uid=1000 → root via xfrm-ESP, RxRPC, or Fragnesia page-cache write Overview CVE-KERNEL is a Python-based Local Privilege Escalation LPE tool that chains multiple Linux kernel CVEs to...

CVE-2026-43284

Dirty Frag — kernel page-cache write tracking site Source for the Dirty Frag patch-status tracker: a single-page site recording which distributions have shipped a fix for the paired page-cache write privilege-escalation chain in the Linux kernel. Where the facts live Everything about the bug — CV...

copyfail2_electric_boogaloo_fix

copyfail2electricboogaloofix A temporary mitigation against copyfail variant copyfail2electricboogaloo - Unprivileged Linux LPE via xfrm ESP-in-UDP MSGSPLICEPAGES no-COW fast path. Page-cache write into any readable file. Overwrites a nologin line in /etc/passwd with sick::0:0:…:/:/bin/bash and s...

copy-fail-checker

Copy Fail Checker — CVE-2026-31431 A small, dependency-light Bash script that tells you whether your Linux system is exposed to the Copy Fail local privilege-escalation vulnerability CVE-2026-31431. The script is read-only : it never exploits the bug, never loads kernel modules, and never modifie...

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...

CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

UBUNTU-CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89487

A flaw was found in openvswitch in the Linux kernel. This vulnerability occurs when the queueuserspacepacket function incorrectly modifies a shared network packet buffer by stripping a critical flag. This action can lead to an unprivileged page-cache write, allowing a local attacker to modify dat...

Linux Distros Unpatched Vulnerability : CVE-2026-89487

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message users...

cve-2026-31431

CVE-2026-31431 — Linux Kernel algifaead "Copy Fail": Analysis Security research on CVE-2026-31431 CVSS 3.1 7.8 HIGH , AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H: three composable design flaws in the AFALG AEAD interface chain into a deterministic, race-free 4-byte page-cache write at any offset of any...

DEBIAN-CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...