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CVE-2025-38717

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: net: kcm: Fix race condition in kcm_unattach() syzbot found a race condition when kcm_unattach(psock) and kcm_release(kcm) are…

Published Sep 4, 2025CWE-362EPSS 0.12%

Overview

CVE-2025-38717 is a high-severity vulnerability. It was published on September 4, 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:

net: kcm: Fix race condition in kcm_unattach()

syzbot found a race condition when kcm_unattach(psock)

and kcm_release(kcm) are executed at the same time.

kcm_unattach() is missing a check of the flag

kcm->tx_stopped before calling queue_work().

If the kcm has a reserved psock, kcm_unattach() might get executed

between cancel_work_sync() and unreserve_psock() in kcm_release(),

requeuing kcm->tx_work right before kcm gets freed in kcm_done().

Remove kcm->tx_stopped and replace it by the less

error-prone disable_work_sync().

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/52565a935213cd6a8662ddb8efe5b4219343a25dRefgit.kernel.org/stable/c/7275dc3bb8f91b23125ff3f47b6529935cf46152Refgit.kernel.org/stable/c/798733ee5d5788b12e8a52db1519abc17e826f69Refgit.kernel.org/stable/c/c0bffbc92a1ca3960fb9cdb8e9f75a68468eb308

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38717?

CVE-2025-38717 is a high-severity vulnerability. It was published on September 4, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-38717?

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-2025-38717?

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-2025-38717?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38717 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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