CVE-2025-38356

Kernel warning via requeued delayed work

Published Jul 25, 2025 · Updated May 11, 2026

A workqueue race in Linux 6.11 allows local users to trigger a kernel warning during an unsuccessful Intel Xe VF driver probe. During early probe unwind, the GuC CT teardown destroys its workqueue while safe_mode_worker_func retains delayed work that can requeue itself. Reachability requires Intel Xe graphics virtualization and an early VF initialization failure; the public report demonstrates a WARN rather than a crash or reboot.

CVSS severity5.5
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A workqueue race in Linux 6.11 allows local users to trigger a kernel warning during an unsuccessful Intel Xe VF driver probe. During early probe unwind, the GuC CT teardown destroys its workqueue while safe_mode_worker_func retains delayed work that can requeue itself. Reachability requires Intel Xe graphics virtualization and an early VF initialization failure; the public report demonstrates a WARN rather than a crash or reboot.

The record

CVE
CVE-2025-38356
Published
Jul 25, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 25, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=09b286950f2911615694f4a1ff491efe9ed5eeba <6d0b588614c43d6334b2d7a70a99f31f7b14ecc0
  2. Affected versionversion=09b286950f2911615694f4a1ff491efe9ed5eeba <ad40098da5c3b43114d860a5b5740e7204158534
  3. Affected versionversion=09b286950f2911615694f4a1ff491efe9ed5eeba <f161e905b08ae8a513c5a36a10e3163e9920cfe6
  4. Affected versionversion=6.11

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=09b286950f2911615694f4a1ff491efe9ed5eeba <6d0b588614c43d6334b2d7a70a99f31f7b14ecc0; version=09b286950f2911615694f4a1ff491efe9ed5eeba <ad40098da5c3b43114d860a5b5740e7204158534; version=09b286950f2911615694f4a1ff491efe9ed5eeba <f161e905b08ae8a513c5a36a10e3163e9920cfe6; version=6.11

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.0Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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