Wind River Support Network


LIN1021-2952 : Security Advisory - linux - CVE-2021-4023

Created: Mar 1, 2022    Updated: Jul 19, 2022
Resolved Date: Jul 19, 2022
Found In Version:
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Kernel


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.
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