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CVE-2026-31547

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix missing runtime PM reference in ccs_mode_store ccs_mode_store() calls xe_gt_reset() which internally invokes xe_pm_…

Published Apr 24, 2026EPSS 0.14%

Overview

CVE-2026-31547 is a medium-severity vulnerability. It was published on April 24, 2026 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:

drm/xe: Fix missing runtime PM reference in ccs_mode_store

ccs_mode_store() calls xe_gt_reset() which internally invokes

xe_pm_runtime_get_noresume(). That function requires the caller

to already hold an outer runtime PM reference and warns if none

is held:

[46.891177] xe 0000:03:00.0: [drm] Missing outer runtime PM protection

[46.891178] WARNING: drivers/gpu/drm/xe/xe_pm.c:885 at

xe_pm_runtime_get_noresume+0x8b/0xc0

Fix this by protecting xe_gt_reset() with the scope-based

guard(xe_pm_runtime)(xe), which is the preferred form when

the reference lifetime matches a single scope.

v2:

- Use scope-based guard(xe_pm_runtime)(xe) (Shuicheng)

- Update commit message accordingly

(cherry picked from commit 7937ea733f79b3f25e802a0c8360bf7423856f36)

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/65d046b2d8e0d6d855379a981869005fd6b6a41bRefgit.kernel.org/stable/c/c409ecce9adcf815e86bc2f68834982e5a9c4e76

How CyberStrike helps

Frequently asked questions

What is CVE-2026-31547?

CVE-2026-31547 is a medium-severity vulnerability. It was published on April 24, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-31547?

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-2026-31547?

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-2026-31547?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-31547 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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