CVE-2025-38369

Host kernel panic via stale IDXD workqueue

Published Jul 25, 2025 · Updated May 11, 2026

Denial of service in Linux 5.6 and affected later branches allows local users to panic the host kernel through IDXD container teardown. The IDXD user-driver detach path calls destroy_workqueue() after its workqueue has already been destroyed when a Docker /dev mount replica is not propagated. The trigger requires an IDXD workload in a container with /dev mounted and termination of the container's parent process; the bounded result is a call trace or host kernel panic.

CVSS severity5.7
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

Denial of service in Linux 5.6 and affected later branches allows local users to panic the host kernel through IDXD container teardown. The IDXD user-driver detach path calls destroy_workqueue() after its workqueue has already been destroyed when a Docker /dev mount replica is not propagated. The trigger requires an IDXD workload in a container with /dev mounted and termination of the container's parent process; the bounded result is a call trace or host kernel panic.

The record

CVE
CVE-2025-38369
Published
Jul 25, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
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=5.6
  2. Affected versionversion=bfe1d56091c1a404b3d4ce7e9809d745fc4453bb <17502e7d7b7113346296f6758324798d536c31fd
  3. Affected versionversion=bfe1d56091c1a404b3d4ce7e9809d745fc4453bb <98fd66c8ba77e3a7137575f610271014bc0e701f
  4. Affected versionversion=bfe1d56091c1a404b3d4ce7e9809d745fc4453bb <aee7a7439f8c0884da87694a401930204a57128f
  5. Affected versionversion=bfe1d56091c1a404b3d4ce7e9809d745fc4453bb <e0051a3daa8b2cb318b03b2f9317c3e40855847a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.6; version=bfe1d56091c1a404b3d4ce7e9809d745fc4453bb <17502e7d7b7113346296f6758324798d536c31fd; version=bfe1d56091c1a404b3d4ce7e9809d745fc4453bb <98fd66c8ba77e3a7137575f610271014bc0e701f; version=bfe1d56091c1a404b3d4ce7e9809d745fc4453bb <aee7a7439f8c0884da87694a401930204a57128f; version=bfe1d56091c1a404b3d4ce7e9809d745fc4453bb <e0051a3daa8b2cb318b03b2f9317c3e40855847a

Published CVSS scores

5.5OracleCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.7CanonicalCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8CanonicalCVSS:3.1/AV:L/AC:L/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

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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