A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3912-1 linux security update
Ubuntu USN Ubuntu USN USN-5924-1 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-5927-1 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-5975-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5980-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5981-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5984-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5985-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5991-1 Linux kernel (GCP) vulnerabilities
Ubuntu USN Ubuntu USN USN-6001-1 Linux kernel (AWS) vulnerabilities
Ubuntu USN Ubuntu USN USN-6009-1 Linux kernel (GCP) vulnerabilities
Ubuntu USN Ubuntu USN USN-6013-1 Linux kernel (AWS) vulnerabilities
Ubuntu USN Ubuntu USN USN-6014-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6020-1 Linux kernel (BlueField) vulnerabilities
Ubuntu USN Ubuntu USN USN-6030-1 Linux kernel (Qualcomm Snapdragon) vulnerabilities
Ubuntu USN Ubuntu USN USN-6151-1 Linux kernel (Xilinx ZynqMP) vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 03 Nov 2025 22:30:00 +0000

Type Values Removed Values Added
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-11-03T21:44:59.899Z

Reserved: 2021-07-29T00:00:00.000Z

Link: CVE-2021-3669

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-08-26T16:15:09.273

Modified: 2025-11-03T22:15:50.677

Link: CVE-2021-3669

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-08-02T06:02:00Z

Links: CVE-2021-3669 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses