CVE-2026-46331

🚨 CVE-2026-46331 - Linux Kernel COW Bug Linux Kernel net/sched Partial Copy-on-Write COW Page Cache Corruption -orange?style=for-the-badge A Linux kernel vulnerability caused by incorrect Copy-on-Write COW handling in the traffic control tc packet editing subsystem. 📖 Overview CVE-2026-46331 is a...

packet_edit_meme

PACKETEDITMEME - aka CVE-2026-46331 net/sched actpedit partial-COW page-cache corruption culprit 899ee91156e5, present v5.18 .. fixed v7.1-rc7. packeteditmeme.c turns it into unprivileged local root: a userns CAPNETADMIN child overwrites the cached ELF entry of setuid-root /bin/su with...

PoC-CVE-2026-46331

このリポジトリには、CVE-2026-46331 の概念実証（PoC）エクスプロイトが含まれています。これは、トラフィック制御サブシステムにおける Linux カーネルのローカル権限昇格の脆弱性です。 脆弱性の概要 この欠陥は actpedit パケット編集アクションに存在し、実行時のパケットオフセットがすべて判明する前に、カーネルがコピーオンライトの書き込み可能範囲を誤って計算する可能性があります。特定のローカル環境条件下では、これにより共有ページキャッシュメモリへの書き込みが可能になります。 影響 権限のないローカルユーザーは、この動作を悪用して、/bin/su などの...

CVE-2026-46331-pedit-cow

CVE-2026-46331-pedit-cow pedit COW 脆弱性（CVE-2026-46331）の解説と悪用手順。 概要 このチャレンジでは、traffic-control サブシステムのパケット編集アクション（actpedit）における Linux カーネルの欠陥である pedit COW を実演します。この脆弱性により、非特権ユーザーが setuid-root バイナリのメモリ内コピーを上書きし、ディスク上のファイルに一切触れることなく実質的に root シェルを取得できます。 悪用手順 1. 初期セットアップ 環境は非特権ユーザー（karen）として開始されます。 id...

CVE-2026-46331

CVE-2026-46331 pedit COW – Linux net/sched Packet-Editor Page-Cache Poisoning Vulnerability Executive Summary CVE-2026-46331 nicknamed “pedit COW” is a local Linux kernel privilege-escalation flaw in the traffic-control subsystem. An unprivileged user in an unprivileged network namespace can...

CVE-2026-46331-pedit-COW-detection

CVE-2026-46331 pedit COW – Linux LPE Validation and auditd/AppArmor Detection Defensive validation report for CVE-2026-46331, focused on Linux kernel actpedit, local privilege escalation behavior, auditd telemetry, AppArmor mitigation, and detection logic. Repository description This repository...

CVE-2026-46331

PACKETEDITMEME - CVE-2026-46331 net/sched actpedit partial-COW page-cache corruption culprit 899ee91156e5, present v5.18 .. fixed v7.1-rc7. packeteditmeme.c turns it into unprivileged local root: a userns CAPNETADMIN child overwrites the cached ELF metadata of a setuid-root binary with...

cve-2026-46331-audit

cve-2026-46331-audit -7.8%20HIGH-orange?style=flat-square Read-only audit script for CVE-2026-46331 a.k.a. pedit COW — a partial copy-on-write bug in the Linux kernel's net/sched actpedit action that lets a local unprivileged user corrupt page cache memory and escalate to root. | | | \ | | / / \ ...

ROS-20260907-73-0100

The vulnerability of the tcfpeditact function in the actpedit module of Linux kernel systems is related to writing beyond buffer boundaries. Exploiting this vulnerability can allow an attacker to cause system failures or gain increased privileges...

SUSE CVE-2026-72338

In the Linux kernel, the following vulnerability has been resolved: net/sched: actpedit: fix TOCTOU heap OOB write in tc offload There is a TOCTOU race condition in flower lockless approach between sizing a flowrule buffer and filling it. [email protected] reports: The clsflower...

CVE-2026-72338

A flaw was found in the Linux kernel's net/sched: actpedit component. A Time-of-check to time-of-use TOCTOU race condition exists when sizing and filling a flowrule buffer. This vulnerability allows a local attacker with CAPNETADMIN capabilities to perform a heap out-of-bounds write with controll...

CVE-2026-72338

In the Linux kernel, the following vulnerability has been resolved: net/sched: actpedit: fix TOCTOU heap OOB write in tc offload There is a TOCTOU race condition in flower lockless approach between sizing a flowrule buffer and filling it. [email protected] reports: The clsflower...

UBUNTU-CVE-2026-72338

In the Linux kernel, the following vulnerability has been resolved: net/sched: actpedit: fix TOCTOU heap OOB write in tc offload There is a TOCTOU race condition in flower lockless approach between sizing a flowrule buffer and filling it. [email protected] reports: The clsflower...

CVE-2026-72338

In the Linux kernel, the following vulnerability has been resolved: net/sched: actpedit: fix TOCTOU heap OOB write in tc offload There is a TOCTOU race condition in flower lockless approach between sizing a flowrule buffer and filling it. [email protected] reports: The clsflower...

CVE-2026-72338

Technical details about CVE-2026-72338 are not publicly available in the provided documents. The materials summarize the issue at a high level. Monitor for updated advisories or full exploit specifics from official sources.

EUVD-2026-59237

In the Linux kernel, the following vulnerability has been resolved: net/sched: actpedit: fix TOCTOU heap OOB write in tc offload There is a TOCTOU race condition in flower lockless approach between sizing a flowrule buffer and filling it. [email protected] reports: The clsflower...

CVE-2026-72338 net/sched: act_pedit: fix TOCTOU heap OOB write in tc offload

In the Linux kernel, the following vulnerability has been resolved: net/sched: actpedit: fix TOCTOU heap OOB write in tc offload There is a TOCTOU race condition in flower lockless approach between sizing a flowrule buffer and filling it. [email protected] reports: The clsflower...

CVE-2026-72338 net/sched: act_pedit: fix TOCTOU heap OOB write in tc offload

In the Linux kernel, the following vulnerability has been resolved: net/sched: actpedit: fix TOCTOU heap OOB write in tc offload There is a TOCTOU race condition in flower lockless approach between sizing a flowrule buffer and filling it. [email protected] reports: The clsflower...

Linux Distros Unpatched Vulnerability : CVE-2026-72338

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/sched: actpedit: fix TOCTOU heap OOB write in tc offload There is a TOCTOU race condition in flower lockless approach between sizing a flowrule buffer and...

CVE-2026-72338: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: actpedit: fix TOCTOU heap OOB write in tc offload There is a TOCTOU race condition in flower lockless approach between sizing a flowrule buffer and filling it. [email protected] reports: The clsflower...