CVE-2024-35927

System suspend failure via uninitialized DRM polling work

Published May 19, 2024 · Updated May 11, 2026

Improper workqueue handling in Linux 6.3 through 6.6.26 and 6.7 through 6.8.5 allows local users to interrupt system suspend. drm_kms_helper_poll_disable() cancels and flushes connector polling work without first verifying that polling was initialized. Exploitation requires local low-privileged access, a suspend operation, and a driver such as hyperv-drm that omits connector polling initialization; the bounded consequence is suspend failure.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper workqueue handling in Linux 6.3 through 6.6.26 and 6.7 through 6.8.5 allows local users to interrupt system suspend. drm_kms_helper_poll_disable() cancels and flushes connector polling work without first verifying that polling was initialized. Exploitation requires local low-privileged access, a suspend operation, and a driver such as hyperv-drm that omits connector polling initialization; the bounded consequence is suspend failure.

The record

CVE
CVE-2024-35927
Published
May 19, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 19, 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

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=6.3
  2. Affected versionversion=78b991ccfa64a438e2d8c2997d22d55621ab277d <18451798f4a4e7418b9fad7e7dd313fe84b1f545
  3. Affected versionversion=78b991ccfa64a438e2d8c2997d22d55621ab277d <3d1b47e3a935abd4f258a945db87e7267ff4079c
  4. Affected versionversion=78b991ccfa64a438e2d8c2997d22d55621ab277d <5abffb66d12bcac84bf7b66389c571b8bb6e82bd

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.3; version=78b991ccfa64a438e2d8c2997d22d55621ab277d <18451798f4a4e7418b9fad7e7dd313fe84b1f545; version=78b991ccfa64a438e2d8c2997d22d55621ab277d <3d1b47e3a935abd4f258a945db87e7267ff4079c; version=78b991ccfa64a438e2d8c2997d22d55621ab277d <5abffb66d12bcac84bf7b66389c571b8bb6e82bd

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NVDCVSS: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

T1499.004Application or System Exploitation

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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