CVE-2022-28356

Name: CVE-2022-28356
Creator: NVD / NIST
Published: 2022-04-02T21:15:09.363+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.58%

Last modified Jun 17, 2026

CVE-2022-28356 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel before 5.17.1, a refcount leak bug was found in net/llc/af_llc.c.. EPSS estimates a 0.58% chance of exploitation in the next 30 days.

Description

In the Linux kernel before 5.17.1, a refcount leak bug was found in net/llc/af_llc.c.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.58%

43.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 5.17.1
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0

References

http://www.openwall.com/lists/oss-security/2022/04/06/1Exploit, Mailing List, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.1Patch, Release Notes, Vendor Advisory
https://github.com/torvalds/linux/commit/764f4eb6846f5475f1244767d24d25dd86528a4aPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220506-0006/Third Party Advisory
https://www.debian.org/security/2022/dsa-5127Third Party Advisory
https://www.debian.org/security/2022/dsa-5173Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/04/06/1Exploit, Mailing List, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.1Patch, Release Notes, Vendor Advisory
https://github.com/torvalds/linux/commit/764f4eb6846f5475f1244767d24d25dd86528a4aPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220506-0006/Third Party Advisory
https://www.debian.org/security/2022/dsa-5127Third Party Advisory
https://www.debian.org/security/2022/dsa-5173Third Party Advisory

Timeline

Published: Apr 2, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-28356?

In the Linux kernel before 5.17.1, a refcount leak bug was found in net/llc/af_llc.c.

How severe is CVE-2022-28356?

CVE-2022-28356 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.58% probability of exploitation in the next 30 days.

How do I fix CVE-2022-28356?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-28356?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST