CVE-2024-42146

Local service interruption via unprotected DMA-buf test

Published Jul 30, 2024 · Updated May 11, 2026

Missing runtime power-management protection in Linux kernel 6.8 allows local users to interrupt service through the Xe KUnit DMA-buf test. xe_test_dmabuf_import_same_driver accesses memory for a same-driver DMA-buf without first taking the outer runtime-PM reference required outside normal driver API entry points. Reaching the condition requires local low-privileged access, an enabled Xe KUnit test path, and compatible Intel Xe graphics hardware; the published impact is limited to availability.

CVSS severity5.5
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing runtime power-management protection in Linux kernel 6.8 allows local users to interrupt service through the Xe KUnit DMA-buf test. xe_test_dmabuf_import_same_driver accesses memory for a same-driver DMA-buf without first taking the outer runtime-PM reference required outside normal driver API entry points. Reaching the condition requires local low-privileged access, an enabled Xe KUnit test path, and compatible Intel Xe graphics hardware; the published impact is limited to availability.

The record

CVE
CVE-2024-42146
Published
Jul 30, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 30, 2024CVE 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

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Is a vulnerable build present?

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

  1. Affected versionversion=6.8
  2. Affected versionversion=dd08ebf6c3525a7ea2186e636df064ea47281987 <0888d15ea45ba8ef4508edd1123ea5ad95b58994
  3. Affected versionversion=dd08ebf6c3525a7ea2186e636df064ea47281987 <f9116f658a6217b101e3b4e89f845775b6fb05d9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=dd08ebf6c3525a7ea2186e636df064ea47281987 <0888d15ea45ba8ef4508edd1123ea5ad95b58994; version=dd08ebf6c3525a7ea2186e636df064ea47281987 <f9116f658a6217b101e3b4e89f845775b6fb05d9

Published CVSS scores

5.5NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CanonicalCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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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