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CVE-2025-38390

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Fix memory leak by freeing notifier callback node Commit e0573444edbf ("firmware: arm_ffa: Add interfaces to…

Published Jul 25, 2025CWE-401EPSS 0.17%

Overview

CVE-2025-38390 is a medium-severity vulnerability. It was published on July 25, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

firmware: arm_ffa: Fix memory leak by freeing notifier callback node

Commit e0573444edbf ("firmware: arm_ffa: Add interfaces to request

notification callbacks") adds support for notifier callbacks by allocating

and inserting a callback node into a hashtable during registration of

notifiers. However, during unregistration, the code only removes the

node from the hashtable without freeing the associated memory, resulting

in a memory leak.

Resolve the memory leak issue by ensuring the allocated notifier callback

node is properly freed after it is removed from the hashtable entry.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/076fa20b4f5737c34921dbb152f9efceaee571b2Refgit.kernel.org/stable/c/938827c440564b2cf2f9b804d1fe81ce8267ededRefgit.kernel.org/stable/c/a833d31ad867103ba72a0b73f3606f4ab8601719

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38390?

CVE-2025-38390 is a medium-severity vulnerability. It was published on July 25, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-38390?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-38390?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-38390?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38390 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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