What is CVE-2022-49893?

CVE-2022-49893 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Memory Leak flaw (CWE-401), affecting Linux kernel versions from 6.0 onward and patched in 6.0.8 and 6.1. CVE-2022-49893 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49893?

CVE-2022-49893 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-2022-49893?

Yes, CVE-2022-49893 has been patched. Fixed versions include 6.0.8 and 6.1. If you are running Linux kernel 6.0 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49893 actively exploited?

CVE-2022-49893 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2022-49893

Medium

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix cxl_region leak, cleanup targets at region delete When a region is deleted any targets that have been previously assigned to that region hold references to it. Trigger those references to drop by detaching all targets at unregister_region() time. Otherwise that region object will leak as userspace has lost the ability to detach targets once region sysfs is torn down.

Package Linux Kernel

Published 2025-05-01

Last modified 2025-11-10

CVSS version 3.1

Patch available

Yes

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-401

CVE-2022-49893 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.0 and later are affected. Fixed in 6.0.8, 6.1 and their respective stable series.

Affected from

≥ 6.0

Fixed in

✓ 6.0.8 6.0.x ✓ 6.1

References

2 total

Kernel Git
https://git.kernel.org/stable/c/0d9e734018d70cecf79e2e4c6082167160a0f13f

Patch
Kernel Git
https://git.kernel.org/stable/c/45d9fb4b758b9d602ee7776eb6754b0349946aad

Patch

Details

CVE ID CVE-2022-49893

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-05-01

Modified 2025-11-10

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49893?

CVE-2022-49893 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Memory Leak flaw (CWE-401) . It affects Linux kernel versions from 6.0 onward and has been patched in 6.0.8 and 6.1. CVE-2022-49893 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49893?

CVE-2022-49893 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-2022-49893?

Yes. CVE-2022-49893 has been patched. Fixed versions include 6.0.8 and 6.1. If you are running Linux kernel 6.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49893 actively exploited?

No. CVE-2022-49893 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.