What is CVE-2022-49906?

CVE-2022-49906 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 5.14 onward and patched in 5.15.78, 6.0.8 and 6.1. CVE-2022-49906 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49906?

CVE-2022-49906 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-2022-49906?

Yes, CVE-2022-49906 has been patched. Fixed versions include 5.15.78, 6.0.8 and 6.1. If you are running Linux kernel 5.14 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49906 actively exploited?

CVE-2022-49906 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-2022-49906

Medium

In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Free rwi on reset success Free the rwi structure in the event that the last rwi in the list processed successfully. The logic in commit 4f408e1fa6e1 ("ibmvnic: retry reset if there are no other resets") introduces an issue that results in a 32 byte memory leak whenever the last rwi in the list gets processed.

Package Linux Kernel

Published 2025-05-01

Last modified 2025-10-01

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-2022-49906 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 5.14 and later are affected. Fixed in 5.15.78, 6.0.8, 6.1 and their respective stable series.

Affected from

≥ 5.14

Fixed in

✓ 5.15.78 5.15.x ✓ 6.0.8 6.0.x ✓ 6.1

References

The following references provide additional information about CVE-2022-49906 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/535b78739ae75f257c894a05b1afa86ad9a3669e
Patch
Kernel patch commit
https://git.kernel.org/stable/c/c3543a287cfba9105dcc4bb41eb817f51266caaf
Patch
Kernel patch commit
https://git.kernel.org/stable/c/d6dd2fe71153f0ff748bf188bd4af076fe09a0a6
Patch

Details

CVE ID CVE-2022-49906

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-05-01

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49906?

CVE-2022-49906 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 5.14 onward and has been patched in 5.15.78, 6.0.8 and 6.1. CVE-2022-49906 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49906?

CVE-2022-49906 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-2022-49906?

Yes — CVE-2022-49906 has been patched. Fixed versions include 5.15.78, 6.0.8 and 6.1. If you are running Linux kernel 5.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49906 actively exploited?

No — CVE-2022-49906 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. View CWE-401 on MITRE CWE →