What is CVE-2024-56775?

CVE-2024-56775 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Memory Leak flaw (CWE-401), affecting Linux kernel versions from 4.15 onward and patched in 6.12.4 and 6.13. CVE-2024-56775 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-56775?

CVE-2024-56775 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2024-56775?

Yes, CVE-2024-56775 has been patched. Fixed versions include 6.12.4 and 6.13. If you are running Linux kernel 4.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-56775 actively exploited?

CVE-2024-56775 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-2024-56775

High

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix handling of plane refcount [Why] The mechanism to backup and restore plane states doesn't maintain refcount, which can cause issues if the refcount of the plane changes in between backup and restore operations, such as memory leaks if the refcount was supposed to go down, or double frees / invalid memory accesses if the refcount was supposed to go up. [How] Cache and re-apply current refcount when restoring plane states.

Package Linux Kernel

Published 2025-01-08

Last modified 2025-10-01

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-401

CVE-2024-56775 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 4.15 and later are affected. Fixed in 6.12.4, 6.13 and their respective stable series.

Affected from

≥ 4.15

Fixed in

✓ 6.12.4 6.12.x ✓ 6.13

References

The following references provide additional information about CVE-2024-56775 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/27227a234c1487cb7a684615f0749c455218833a
Patch
Kernel patch commit
https://git.kernel.org/stable/c/8cb2f6793845f135b28361ba8e96901cae3e5790
Patch

Details

CVE ID CVE-2024-56775

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-01-08

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-56775?

CVE-2024-56775 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as a Memory Leak flaw (CWE-401) . It affects Linux kernel versions from 4.15 onward and has been patched in 6.12.4 and 6.13. CVE-2024-56775 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-56775?

CVE-2024-56775 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2024-56775?

Yes — CVE-2024-56775 has been patched. Fixed versions include 6.12.4 and 6.13. If you are running Linux kernel 4.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-56775 actively exploited?

No — CVE-2024-56775 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 →