What is CVE-2022-49757?

CVE-2022-49757 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 3.6 onward and patched in 4.14.305, 4.19.272, 5.4.231 and others. CVE-2022-49757 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49757?

CVE-2022-49757 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-2022-49757?

Yes, CVE-2022-49757 has been patched. Fixed versions include 4.14.305, 4.19.272, 5.4.231 and others. If you are running Linux kernel 3.6 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49757 actively exploited?

CVE-2022-49757 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-2022-49757

Medium

In the Linux kernel, the following vulnerability has been resolved: EDAC/highbank: Fix memory leak in highbank_mc_probe() When devres_open_group() fails, it returns -ENOMEM without freeing memory allocated by edac_mc_alloc(). Call edac_mc_free() on the error handling path to avoid a memory leak. [ bp: Massage commit message. ]

Package Linux Kernel

Published 2025-03-27

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-2022-49757 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 3.6 and later are affected. Fixed in 4.14.305, 4.19.272, 5.4.231, 5.10.166, 5.15.91, 6.1.9, 6.2 and their respective stable series.

Affected from

≥ 3.6

Fixed in

✓ 4.14.305 4.14.x ✓ 4.19.272 4.19.x ✓ 5.4.231 5.4.x ✓ 5.10.166 5.10.x ✓ 5.15.91 5.15.x ✓ 6.1.9 6.1.x ✓ 6.2

References

The following references provide additional information about CVE-2022-49757 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/0db40e23b56d217eebd385bebb64057ef764b2c7
Patch
Kernel patch commit
https://git.kernel.org/stable/c/329fbd260352a7b9a83781d8b8bd96f95844a51f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/8d23f5d25264beb223ee79cdb530b88c237719fc
Patch

7 patch commits total View all on NVD

Details

CVE ID CVE-2022-49757

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-03-27

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49757?

CVE-2022-49757 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 3.6 onward and has been patched in 4.14.305, 4.19.272, 5.4.231 and others. CVE-2022-49757 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49757?

CVE-2022-49757 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-2022-49757?

Yes — CVE-2022-49757 has been patched. Fixed versions include 4.14.305, 4.19.272, 5.4.231 and others. If you are running Linux kernel 3.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49757 actively exploited?

No — CVE-2022-49757 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 →