CVE-2025-68758

Kernel crash via incorrect LED supplier link

Published Jan 5, 2026 · Updated Jan 5, 2026

NULL-pointer dereference in Linux Kernel 5.6 and later allows local users with administrative privileges to crash the kernel during LED device removal. The LED-backlight driver links its consumer to the supplier class device's parent instead of the actual LED supplier, so removal ordering permits led_put to access a released device. Triggering the crash requires administrative removal of the supplier before its backlight consumer, through overlay removal or driver unbinding.

CVSS severityUnavailable
Unscored
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

NULL-pointer dereference in Linux Kernel 5.6 and later allows local users with administrative privileges to crash the kernel during LED device removal. The LED-backlight driver links its consumer to the supplier class device's parent instead of the actual LED supplier, so removal ordering permits led_put to access a released device. Triggering the crash requires administrative removal of the supplier before its backlight consumer, through overlay removal or driver unbinding.

The record

CVE
CVE-2025-68758
Published
Jan 5, 2026
Updated
Jan 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jan 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 5, 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=5.6
  2. Affected versionversion=ae232e45acf9621f2c96b41ca3af006ac7552c33 <08c9dc6b0f2c68e5e7c374ac4499e321e435d46c
  3. Affected versionversion=ae232e45acf9621f2c96b41ca3af006ac7552c33 <0e63ea4378489e09eb5e920c8a50c10caacf563a
  4. Affected versionversion=ae232e45acf9621f2c96b41ca3af006ac7552c33 <60a24070392ec726ccfe6ad1ca7b0381c8d8f7c9
  5. Affected versionversion=ae232e45acf9621f2c96b41ca3af006ac7552c33 <9341d6698f4cfdfc374fb6944158d111ebe16a9d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linux Kernelversion=5.6; version=ae232e45acf9621f2c96b41ca3af006ac7552c33 <08c9dc6b0f2c68e5e7c374ac4499e321e435d46c; version=ae232e45acf9621f2c96b41ca3af006ac7552c33 <0e63ea4378489e09eb5e920c8a50c10caacf563a; version=ae232e45acf9621f2c96b41ca3af006ac7552c33 <60a24070392ec726ccfe6ad1ca7b0381c8d8f7c9; version=ae232e45acf9621f2c96b41ca3af006ac7552c33 <9341d6698f4cfdfc374fb6944158d111ebe16a9d

Published CVSS scores

No CVSS assessment is available in this record.

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
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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