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.
Advisories
Source ID Title
EUVD EUVD EUVD-2021-33926 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-03T17:16:03.222Z

Reserved: 2021-11-25T00:00:00

Link: CVE-2021-4023

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-03-10T17:44:50.773

Modified: 2024-11-21T06:36:44.683

Link: CVE-2021-4023

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-09-08T00:00:00Z

Links: CVE-2021-4023 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses