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.
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

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.