Copy Fail (CVE-2026-31431): Frequently asked questions about Linux kernel privilege escalation vulnerability

Title: Copy Fail (CVE-2026-31431): Frequently asked questions about Linux kernel privilege escalation vulnerability

URL Source: https://www.tenable.com/blog/copy-fail-cve-2026-31431-frequently-asked-questions-about-linux-kernel-privilege-escalation

Published Time: 2026-04-30T11:50:50-0400

Markdown Content: # Copy Fail (CVE-2026-31431): Linux Kernel Privilege Escalation FAQ | Tenable®

* [Skip to Main Navigation](https://www.tenable.com/blog/copy-fail-cve-2026-31431-frequently-asked-questions-about-linux-kernel-privilege-escalation#site-nav) * * [Skip to Footer](https://www.tenable.com/blog/copy-fail-cve-2026-31431-frequently-asked-questions-about-linux-kernel-privilege-escalation#site-footer)

[Tenable](https://www.tenable.com/)[Platform](https://www.tenable.com/products/tenable-one)[Products](https://www.tenable.com/products)[Solutions](https://www.tenable.com/solutions)[Why Tenable](https://www.tenable.com/why-tenable)[Resources](https://www.tenable.com/blog/copy-fail-cve-2026-31431-frequently-asked-questions-about-linux-kernel-privilege-escalation)[Partners](https://www.tenable.com/blog/copy-fail-cve-2026-31431-frequently-asked-questions-about-linux-kernel-privilege-escalation)[Support](https://www.tenable.com/blog/copy-fail-cve-2026-31431-frequently-asked-questions-about-linux-kernel-privilege-escalation)[Company](https://www.tenable.com/blog/copy-fail-cve-2026-31431-frequently-asked-questions-about-linux-kernel-privilege-escalation)

[contact_icon](https://www.tenable.com/about-tenable/contact-tenable)

[English](https://www.tenable.com/?tns_languageOverride=true)[Deutsch](https://de.tenable.com/?tns_languageOverride=true)[Français (France)](https://fr.tenable.com/?tns_languageOverride=true)[Español (América Latina)](https://es-la.tenable.com/?tns_languageOverride=true)[Português (Brasil)](https://pt-br.tenable.com/?tns_languageOverride=true)[Italiano](https://it.tenable.com/?tns_languageOverride=true)

[简体中文](https://www.tenablecloud.cn/?tns_languageOverride=true)[繁體中文](https://zh-tw.tenable.com/?tns_languageOverride=true)[日本語](https://jp.tenable.com/?tns_languageOverride=true)[한국어](https://kr.tenable.com/?tns_languageOverride=true)[العربية](https://ar.tenable.com/?tns_languageOverride=true)

[Tenable Product Login](https://cloud.tenable.com/)[Community & Support](https://connect.tenable.com/)

[Try](https://www.tenable.com/try)[Buy](https://www.tenable.com/buy)

[Try](https://www.tenable.com/products)

* Business needs * [Active Directory](https://www.tenable.com/solutions/active-directory) * [AI Security Posture Management (AI-SPM)](https://www.tenable.com/cloud-security/solutions/ai-spm) * [AWS security](https://www.tenable.com/cloud-security/solutions/aws) * [Azure security](https://www.tenable.com/cloud-security/solutions/azure) * [Cloud Security Posture Management (CSPM)](https://www.tenable.com/cloud-security/solutions/cspm) * [Compliance](https://www.tenable.com/solutions/compliance) * [Cyber insurance](https://www.tenable.com/solutions/cyber-insurance) * [Data Security Posture Management (DSPM)](https://www.tenable.com/cloud-security/solutions/dspm) * [Google Cloud security](https://www.tenable.com/cloud-security/solutions/gcp) * [Infrastructure as Code (IaC) security](https://www.tenable.com/cloud-security/solutions/iac) * [Kubernetes Security Posture Management (KSPM)](https://www.tenable.com/cloud-security/solutions/kspm) * [IT / OT](https://www.tenable.com/solutions/it-ot) * [Ransomware](https://www.tenable.com/solutions/ransomware) * [Vulnerability assessment](https://www.tenable.com/solutions/vulnerability-assessment) * [Vulnerability management](https://www.tenable.com/solutions/vulnerability-management) * [Zero trust](https://www.tenable.com/solutions/zero-trust)

* [Tenable Vulnerability Management](https://www.tenable.com/products/vulnerability-management)[Try for free](https://www.tenable.com/blog/copy-fail-cve-2026-31431-frequently-asked-questions-about-linux-kernel-privilege-escalation#tenableio-4part) * [Tenable Security Center](https://www.tenable.com/products/security-center)[Request a demo](https://www.tenable.com/blog/copy-fail-cve-2026-31431-frequently-asked-questions-about-linux-kernel-privilege-escalation#tenable-sc-eval) * [Tenable Web App Scanning](https://www.tenable.com/products/web-app-scanning)[Try for free](https://www.tenable.com/blog/copy-fail-cve-2026-31431-frequently-asked-questions-about-linux-kernel-privilege-escalation#tenableio-was) * [Tenable Patch Management](https://www.tenable.com/products/patch-management)[Request a […]

* [Tenable Cloud Security (CNAPP)](https://www.tenable.com/c […]

[… 75,987 Zeichen — nächste Zone: tail …]

By submitting your information on this page, Tenable may send you email communications regarding its products and services. You may opt out of receiving these communications at any time by using the unsubscribe link located in the footer of the emails delivered to you. You can also manage your Tenable email preferences by visiting the [Subscription Management](https://info.tenable.com/SubscriptionManagement.html) Page.

Tenable will only process your personal data in accordance with its [Privacy Policy](https://www.tenable.com/privacy-policy).

Submit

### Thank You

Thank you for your interest in Tenable Patch Management. A representative will be in touch soon.

%3A%20Linux%20Kernel%20Privilege%20Escalation%20FAQ%20%7C%20Tenable%C2%AE&p=https%3A%2F%2Fwww.tenable.com%2Fblog%2Fcopy-fail-cve-2026-31431-frequently-asked-questions-about-linux-kernel-privilege-escalation&r=<=811&evt=pageLoad&sv=2&cdb=AQAS&rn=32239)