theori-io/copy-fail-CVE-2026-31431

Copy Fail (CVE-2026-31431): 9-year-old Linux kernel LPE found by Theori's Xint Code

Python

4,075

3 commits

updated Apr 29, 2026

xint.io/blog/copy-fail-linux-distributions

See the code

README

Copy Fail - CVE-2026-31431

Technical Writeup

Tested Distro / Version

Distro	Version
Ubuntu 24.04 LTS	6.17.0-1007-aws
Amazon Linux 2023	6.18.8-9.213.amzn2023
RHEL 10.1	6.12.0-124.45.1.el10_1
SUSE 16	6.12.0-160000.9-default

ai-security

cve-2026-31431

exploit

linux-kernel

privilege-escalation

privilege-escalation-exploits

security-research

theori

vulnerability

xint-code

Significant stargazers

(top 24 of 52)

MK (fengmk2)

8,400 followers · starred Apr 2026

Kay Yan

321 followers · starred Apr 2026

Daniele

17 followers · starred May 2026

Stanislas

2,267 followers · starred Apr 2026

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