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CVE-2025-38511

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pf: Clear all LMTT pages on alloc Our LMEM buffer objects are not cleared by default on alloc and during VF provisioning…

Published Aug 16, 2025EPSS 0.16%

Overview

CVE-2025-38511 is a high-severity vulnerability. It was published on August 16, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, 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:

drm/xe/pf: Clear all LMTT pages on alloc

Our LMEM buffer objects are not cleared by default on alloc

and during VF provisioning we only setup LMTT PTEs for the

actually provisioned LMEM range. But beyond that valid range

we might leave some stale data that could either point to some

other VFs allocations or even to the PF pages.

Explicitly clear all new LMTT page to avoid the risk that a

malicious VF would try to exploit that gap.

While around add asserts to catch any undesired PTE overwrites

and low-level debug traces to track LMTT PT life-cycle.

(cherry picked from commit 3fae6918a3e27cce20ded2551f863fb05d4bef8d)

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/5d21892c2e15b6a27f8bc907693eca7c6b7cc269Refgit.kernel.org/stable/c/705a412a367f383430fa34bada387af2e52eb043Refgit.kernel.org/stable/c/ff4b8c9ade1b82979fdd01e6f45b60f92eed26d8

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38511?

CVE-2025-38511 is a high-severity vulnerability. It was published on August 16, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-38511?

This vulnerability has a CVSS 3.1 base score of 8.8, 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-2025-38511?

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-2025-38511?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38511 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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