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CVE-2021-4023

MEDIUM CVSS: 5.5 Published: 2022-03-10 Modified: 2026-06-17

Description

A flaw was found in the io-workqueue implementation in the Linux kernel versions prior to 5.15-rc1. The kernel can panic when an improper cancellation operation triggers the submission of new io-uring operations during a shortage of free space. This flaw allows a local user with permissions to execute io-uring requests to possibly crash the system.

Affected Platforms

Linux Linux KernelFedoraproject Fedora

Weakness Type

CWE-200, NVD-CWE-noinfo

References