cvedb.io
CVE-2021-4023
MEDIUM · CVSS 5.5
EPSS exploitation probability: 0%
Published 2022-03-10T17:44:50.773 · Last modified 2026-06-17T04:18:54.753

Summary

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 products

linux — linux_kernel

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.