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CVE-2025-38469

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/xen: Fix cleanup logic in emulation of Xen schedop poll hypercalls kvm_xen_schedop_poll does a kmalloc_array() when a…

Published Jul 28, 2025EPSS 0.16%

Overview

CVE-2025-38469 is a medium-severity vulnerability. It was published on July 28, 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:

KVM: x86/xen: Fix cleanup logic in emulation of Xen schedop poll hypercalls

kvm_xen_schedop_poll does a kmalloc_array() when a VM polls the host

for more than one event channel potr (nr_ports > 1).

After the kmalloc_array(), the error paths need to go through the

"out" label, but the call to kvm_read_guest_virt() does not.

[Adjusted commit message. - Paolo]

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/061c553c66bc1638c280739999224c8000fd4602Refgit.kernel.org/stable/c/3ee59c38ae7369ad1f7b846e05633ccf0d159fabRefgit.kernel.org/stable/c/5a53249d149f48b558368c5338b9921b76a12f8cRefgit.kernel.org/stable/c/fd627ac8a5cff4d45269f164b13ddddc0726f2cc

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38469?

CVE-2025-38469 is a medium-severity vulnerability. It was published on July 28, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-38469?

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-2025-38469?

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-2025-38469?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38469 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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