What is CVE-2025-68223?

CVE-2025-68223 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Improper Locking flaw (CWE-667), affecting Linux kernel versions from 3.18 onward and patched in 6.1.162, 6.6.123, 6.12.60 and others. CVE-2025-68223 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-68223?

CVE-2025-68223 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-2025-68223?

Yes, CVE-2025-68223 has been patched. Fixed versions include 6.1.162, 6.6.123, 6.12.60 and others. If you are running Linux kernel 3.18 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-68223 actively exploited?

CVE-2025-68223 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Improper Locking (CWE-667)?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/667.html

CVE-2025-68223

Medium

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: delete radeon_fence_process in is_signaled, no deadlock Delete the attempt to progress the queue when checking if fence is signaled. This avoids deadlock. dma-fence_ops::signaled can be called with the fence lock in unknown state. For radeon, the fence lock is also the wait queue lock. This can cause a self deadlock when signaled() tries to make forward progress on the wait queue. But advancing the queue is unneeded because incorrectly returning false from signaled() is perfectly acceptable. (cherry picked from commit 527ba26e50ec2ca2be9c7c82f3ad42998a75d0db)

Package Linux Kernel

Published 2025-12-16

Last modified 2026-02-26

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-667

CVE-2025-68223 is a Improper Locking vulnerability

What is Improper Locking?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. Learn more on MITRE CWE

Affected versions

Linux kernel versions 3.18 and later are affected. Fixed in 6.1.162, 6.6.123, 6.12.60, 6.17.10, 6.18 and their respective stable series.

Affected from

≥ 3.18

Fixed in

✓ 6.1.162 6.1.x ✓ 6.6.123 6.6.x ✓ 6.12.60 6.12.x ✓ 6.17.10 6.17.x ✓ 6.18

References

5 total

Kernel Git
https://git.kernel.org/stable/c/73bc12d6a547f9571ce4393acfd73c004e2df9e5

Patch
Kernel Git
https://git.kernel.org/stable/c/7e3e9b3a44c23c8eac86a41308c05077d6d30f41

Patch
Kernel Git
https://git.kernel.org/stable/c/9d0ed508a9e2af82951ce7d834f58c139fc2bd9b

Patch
Kernel Git
https://git.kernel.org/stable/c/9eb00b5f5697bd56baa3222c7a1426fa15bacfb5

Patch
Kernel Git
https://git.kernel.org/stable/c/d40a72d7e3bad4dfb311ef078f5a57362f088c7f

Patch

Details

CVE ID CVE-2025-68223

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-12-16

Modified 2026-02-26

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-68223?

CVE-2025-68223 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Improper Locking flaw (CWE-667) . It affects Linux kernel versions from 3.18 onward and has been patched in 6.1.162, 6.6.123, 6.12.60 and others. CVE-2025-68223 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-68223?

CVE-2025-68223 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-2025-68223?

Yes. CVE-2025-68223 has been patched. Fixed versions include 6.1.162, 6.6.123, 6.12.60 and others. If you are running Linux kernel 3.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-68223 actively exploited?

No. CVE-2025-68223 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.