What is CVE-2024-56564?

CVE-2024-56564 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.10 onward and patched in 6.12.4 and 6.13. CVE-2024-56564 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-56564?

CVE-2024-56564 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-2024-56564?

Yes, CVE-2024-56564 has been patched. Fixed versions include 6.12.4 and 6.13. If you are running Linux kernel 6.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-56564 actively exploited?

CVE-2024-56564 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-56564

Medium

In the Linux kernel, the following vulnerability has been resolved: ceph: pass cred pointer to ceph_mds_auth_match() This eliminates a redundant get_current_cred() call, because ceph_mds_check_access() has already obtained this pointer. As a side effect, this also fixes a reference leak in ceph_mds_auth_match(): by omitting the get_current_cred() call, no additional cred reference is taken.

Package Linux Kernel

Published 2024-12-27

Last modified 2025-10-07

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

Affected versions

Linux kernel versions 6.10 and later are affected. Fixed in 6.12.4, 6.13 and their respective stable series.

Affected from

≥ 6.10

Fixed in

✓ 6.12.4 6.12.x ✓ 6.13

References

The following references provide additional information about CVE-2024-56564 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/23426309a4064b25a961e1c72961d8bfc7c8c990
Patch
Kernel patch commit
https://git.kernel.org/stable/c/ffa6ba7bdb7f07f49c9e9150b0176df066520f62
Patch

Details

CVE ID CVE-2024-56564

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-12-27

Modified 2025-10-07

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-56564?

CVE-2024-56564 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.10 onward and has been patched in 6.12.4 and 6.13. CVE-2024-56564 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-56564?

CVE-2024-56564 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-2024-56564?

Yes — CVE-2024-56564 has been patched. Fixed versions include 6.12.4 and 6.13. If you are running Linux kernel 6.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-56564 actively exploited?

No — CVE-2024-56564 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.