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CVE-2025-38313

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: bus: fsl-mc: fix double-free on mc_dev The blamed commit tried to simplify how the deallocations are done but, in the process,…

Published Jul 10, 2025CWE-415EPSS 0.19%

Overview

CVE-2025-38313 is a high-severity vulnerability. It was published on July 10, 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:

bus: fsl-mc: fix double-free on mc_dev

The blamed commit tried to simplify how the deallocations are done but,

in the process, introduced a double-free on the mc_dev variable.

In case the MC device is a DPRC, a new mc_bus is allocated and the

mc_dev variable is just a reference to one of its fields. In this

circumstance, on the error path only the mc_bus should be freed.

This commit introduces back the following checkpatch warning which is a

false-positive.

WARNING: kfree(NULL) is safe and this check is probably not required

+ if (mc_bus)

+ kfree(mc_bus);

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/12e4431e5078847791936820bd39df9e1ee26d2eRefgit.kernel.org/stable/c/1d5baab39e5b09a76870b345cdee7933871b881fRefgit.kernel.org/stable/c/3135e03a92f6b5259d0a7f25f728e9e7866ede3fRefgit.kernel.org/stable/c/4b23c46eb2d88924b93aca647bde9a4b9cf62cf9Refgit.kernel.org/stable/c/7002b954c4a8b9965ba0f139812ee4a6f71beac8Refgit.kernel.org/stable/c/873d47114fd5e5a1cad2018843671537cc71ac84Refgit.kernel.org/stable/c/b2057374f326303c86d8423415ab58656eebc695Refgit.kernel.org/stable/c/d694bf8a9acdbd061596f3e7549bc8cb70750a60Reflists.debian.org/debian-lts-announce/2025/10/msg00007.htmlReflists.debian.org/debian-lts-announce/2025/10/msg00008.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38313?

CVE-2025-38313 is a high-severity vulnerability. It was published on July 10, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-38313?

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-2025-38313?

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-2025-38313?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38313 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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