What is CVE-2022-4269?

CVE-2022-4269 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Deadlock flaw (CWE-833). CVE-2022-4269 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-4269?

CVE-2022-4269 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2022-4269?

No patch is currently available for CVE-2022-4269. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2022-4269 actively exploited?

CVE-2022-4269 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Deadlock (CWE-833)?

The product contains multiple threads that wait for each other to release locks, causing all threads to halt. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/833.html

CVE-2022-4269

Medium

A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action "mirred") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition.

Package Linux Kernel

Published 2022-12-05

Last modified 2025-04-14

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-833

CVE-2022-4269 is a Deadlock vulnerability

What is Deadlock?

The product contains multiple threads that wait for each other to release locks, causing all threads to halt. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2022-4269 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Debian Security
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
Kernel.org
https://lore.kernel.org/netdev/33dc43f587ec1388ba456b4915c75f02a8aae226.1663945716.git.dcaratti%40redhat.com/
Security
https://security.netapp.com/advisory/ntap-20230929-0001/
Debian Security
https://www.debian.org/security/2023/dsa-5480

Details

CVE ID CVE-2022-4269

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2022-12-05

Modified 2025-04-14

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2022-4269?

CVE-2022-4269 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Deadlock flaw (CWE-833) . CVE-2022-4269 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-4269?

CVE-2022-4269 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2022-4269?

No patch is currently available for CVE-2022-4269. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2022-4269 actively exploited?

No — CVE-2022-4269 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Deadlock (CWE-833)?

The product contains multiple threads that wait for each other to release locks, causing all threads to halt. View CWE-833 on MITRE CWE →