What is CVE-2022-49857?

CVE-2022-49857 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 5.10 onward and patched in 5.10.155, 5.15.79, 6.0.9 and others. CVE-2022-49857 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49857?

CVE-2022-49857 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-2022-49857?

Yes, CVE-2022-49857 has been patched. Fixed versions include 5.10.155, 5.15.79, 6.0.9 and others. If you are running Linux kernel 5.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49857 actively exploited?

CVE-2022-49857 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-2022-49857

Medium

In the Linux kernel, the following vulnerability has been resolved: net: marvell: prestera: fix memory leak in prestera_rxtx_switch_init() When prestera_sdma_switch_init() failed, the memory pointed to by sw->rxtx isn't released. Fix it. Only be compiled, not be tested.

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-2022-49857 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 5.10 and later are affected. Fixed in 5.10.155, 5.15.79, 6.0.9, 6.1 and their respective stable series.

Affected from

≥ 5.10

Fixed in

✓ 5.10.155 5.10.x ✓ 5.15.79 5.15.x ✓ 6.0.9 6.0.x ✓ 6.1

References

The following references provide additional information about CVE-2022-49857 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/31e5084ac6876e52dbb0a1cc4fc18b6c79979f31
Patch
Kernel patch commit
https://git.kernel.org/stable/c/409731df6310a33f4d0a3ef594d2410cdcd637f2
Patch
Kernel patch commit
https://git.kernel.org/stable/c/519b58bbfa825f042fcf80261cc18e1e35f85ffd
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2022-49857

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-2022-49857?

CVE-2022-49857 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 5.10 onward and has been patched in 5.10.155, 5.15.79, 6.0.9 and others. CVE-2022-49857 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49857?

CVE-2022-49857 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-2022-49857?

Yes — CVE-2022-49857 has been patched. Fixed versions include 5.10.155, 5.15.79, 6.0.9 and others. If you are running Linux kernel 5.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49857 actively exploited?

No — CVE-2022-49857 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 →