CopyFail-CVE-2026-31431

CopyFail: CVE-2026-31431 Python implementation of copy.fail. Overwrites the page cache of a setuid-root binary via AFALG + splice to get root. No race, no offsets works on any Linux distro since 2017. Requirements Python 3.6+ 3.12+ uses os.splice natively; older versions fall back to ctypes Linux...

copyfail-guard

CopyFail Guard / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / // // / // / // / / / // / / / / // / // / // / / / // / // ./, // ,/// /,/,// ,/ // // Fast, auditable Linux exposure assessment and mitigation for CVE-2026-31431 “Copy Fail” while kernels get patched...

CVE-2026-31431-copyfail-aarch64

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copyFail30

适用于 Python 3.10 以下版本的 CopyFail 在 3.10 版本之前，操作系统不包含 splice。此版本的 copyFail 使用 ctypes 在描述符之间进行系统调用，而不使用 splice 封装。 适用于旧版和当前版本的 python3。 基于 https://github.com/theori-io/copy-fail-CVE-2026-31431。...

ansible-mitigate-copyfail-dirtyfrag

Ansible playbook to mitigate CopyFail, DirtyFrag and Fragnesia vulnerabilities Mitigate CopyFail CVE-2026-31431, DirtyFrag CVE-2026-43284 and Fragnesia CVE-2026-46300 vulnerabilities in the Linux Kernel using a simple but effective Ansible playbook. Use this Ansible Playbook to run against your...

CVE-2026-31431

Description: Cfail is my implementation in C++ x86-64 Assembly of CVE-2026-31431 aka Copyfail, with no dependecy required at all, included libc. In fact, you obtain am universal executable able to run stand-alone on every Linux x86-64 distribution, thanks to a minimal implementation of the standa...

Estudo-de-Caso-CVE-2026-31431-CopyFail

🐧 CVE-2026-31431 — CopyFail: Linux Kernel Privilege Escalation Complete Case Study — How it was discovered, how it works, how to test, how to replicate in a safe environment and how to fix the critical vulnerability that affects almost all Linux distributions since 2017. 🚨 Legal Notice / Disclaim...

BigFix-CopyFail-AlmaLinux-Content

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copyfail-briefing

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CopyFail-Penguin

CopyFail Penguin A safe Linux security checker for CopyFail/CVE-2026-31431. Purpose CopyFail Penguin checks basic Linux system information and possible exposure indicators related to the CopyFail vulnerability. This project is intended for learning, awareness, and defensive system administration...

copyfail-guard

copyfail-guard A zero-dependency Python CLI that checks whether a Linux host appears exposed to CVE-2026-31431 "Copy Fail" without running an exploit. It can also apply a conservative temporary mitigation when the affected component is loadable as a kernel module. Supports Debian/Ubuntu,...

block-copyfail

block-copyfail CVE-2026-31431（「Copy Fail」）に対する概念実証 のランタイム緩和策です。これは、algifaead 内の authencesn 暗号テンプレートを介したLinuxカーネルの権限昇格です。 モジュールのブラックリスト登録とは異なり、これは再起動を必要としません 。BPF LSMプログラムがsocketbindをフックし、Copy Failが悪用するサブシステムであるAFALG...

check-copyfail-cve-2026-31431

check-copyfail check-copyfail.sh is a read-only Bash script that assesses host exposure to CVE-2026-31431 "Copy Fail". Author: Silent4Labs It inspects the local system for: kernel version and known upstream patch state affected distribution baselines algifaead module status active AFALG socket...

CopyFail-Scanner-CVE-2026-31431

CopyFail-Scanner-CVE-2026-31431 CopyFail-Scanner is a tool that identifies the CopyFile vulnerability CVE-2026-31431. Enumerates the system Assesses exposure to the vulnerability Indicates the status vulnerable/not vulnerable Suggests and, optionally, executes a secure update based on the distro...

CopyFail-Experiment

Just an experiment to verify that the LLM can find this vuln and construct a working exploit. Usage gcc -o poc poc.c ./poc...

CVE-2026-31431-copyfail-rs

CVE-2026-31431 CopyFail CVE-2026-31431 POC. Pure Rust implementation, no runtime dependencies. Applicable Targets Linux x8664 kernels with CONFIGCRYPTOUSERAPIAEAD=y AFALG AEAD support enabled and the algifaead module loadable. Usage ./CVE-2026-31431-copyfail-rs Dependencies Build time : libc +...

CVE-2026-31431

CVE-2026-31431 CopyFail standard binary Get all new CVE alert on https://exploitroom.com mail :: /Desktop/CVE-2026 » file exploit: ELF 64-bit LSB executable, x86-64, version 1 GNU/Linux, statically linked, BuildIDsha1=9454dbdde0ac2d1a8981c06db89f24a4753ec3b7, for GNU/Linux 3.2.0, not stripped...

cve-2026-31431-ftrace

cve-2026-31431 mitigation using ftrace The ebpf solutions around for mitigating cve-2026-31431 require lsm=bpf at boot time, which is usually not set by default. For OracleLinux this was enabled by default in UEKr7u3 and in UEKr8u1 after December 2025. To check whether or not you can use ebpf-lsm...

CopyFail-Patcher

Patcher script for CVE-2026-31431 This repo provide script for the CopyFail vulnerability, for Debian/Ubuntu/RHEL/Fedora, didn't test on other distros but anyway... Just follow these : $ git clone https://github.com/mhdgning131/CopyFail-Patcher.git $ cd CopyFail-Patcher $ chmod +x patchcopyfail.s...

copyfail-c

copyfail-c A minimal C reproduction for researching Copy Fail CVE-2026-31431. This repository contains a compact C implementation built around the Linux kernel AFALG interface for vulnerability research, behavior analysis, and controlled reproduction. Repository layout . ├── src/ C source ├── dis...