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CVE-2025-38095

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: dma-buf: insert memory barrier before updating num_fences smp_store_mb() inserts memory barrier after storing operation.

Published Jul 3, 2025CWE-476EPSS 0.21%

Overview

CVE-2025-38095 is a high-severity vulnerability. It was published on July 3, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

dma-buf: insert memory barrier before updating num_fences

smp_store_mb() inserts memory barrier after storing operation.

It is different with what the comment is originally aiming so Null

pointer dereference can be happened if memory update is reordered.

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/08680c4dadc6e736c75bc2409d833f03f9003c51Refgit.kernel.org/stable/c/3becc659f9cb76b481ad1fb71f54d5c8d6332d3fRefgit.kernel.org/stable/c/72c7d62583ebce7baeb61acce6057c361f73be4aRefgit.kernel.org/stable/c/90eb79c4ed98a4e24a62ccf61c199ab0f680fa8fRefgit.kernel.org/stable/c/c9d2b9a80d06a58f37e0dc8c827075639b443927Refgit.kernel.org/stable/c/d0b7f11dd68b593bd970e5735be00e8d89bace30Refgit.kernel.org/stable/c/fe1bebd0edb22e3536cbc920ec713331d1367ad4Reflists.debian.org/debian-lts-announce/2025/08/msg00010.htmlReflists.debian.org/debian-lts-announce/2025/10/msg00007.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38095?

CVE-2025-38095 is a high-severity vulnerability. It was published on July 3, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-38095?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-38095?

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-2025-38095?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38095 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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