CVE-2026-89934

Device autosuspend prevention via leaked PM reference

Published Sep 16, 2026 · Updated Sep 16, 2026

Resource leakage in Linux kernel 6.1 allows attackers to prevent an LTRF216A sensor from autosuspending via a failed data read. The ltrf216a_get_lux() error path returns when ltrf216a_read_data() fails without calling ltrf216a_set_power_state(data, false), leaving the runtime PM usage count elevated. Reachability requires an LTRF216A light sensor and a failed read; the documented consequence is continued device activity rather than data access or code execution.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Resource leakage in Linux kernel 6.1 allows attackers to prevent an LTRF216A sensor from autosuspending via a failed data read. The ltrf216a_get_lux() error path returns when ltrf216a_read_data() fails without calling ltrf216a_set_power_state(data, false), leaving the runtime PM usage count elevated. Reachability requires an LTRF216A light sensor and a failed read; the documented consequence is continued device activity rather than data access or code execution.

The record

CVE
CVE-2026-89934
Published
Sep 16, 2026
Updated
Sep 16, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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?

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  1. Affected versionversion=6.1
  2. Affected versionversion=83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f <0614928a3eda35bddd8c2f02311e286b59bbe746
  3. Affected versionversion=83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f <80e7381e8cccb543397572af153865f34aaf4353
  4. Affected versionversion=83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f <c132aef0e757a39036b1d40faf0569f2e343b13e
  5. Affected versionversion=83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f <c4f003d8578f5718fe1ec332bc89f9ff69fd205b

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.1; version=83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f <0614928a3eda35bddd8c2f02311e286b59bbe746; version=83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f <80e7381e8cccb543397572af153865f34aaf4353; version=83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f <c132aef0e757a39036b1d40faf0569f2e343b13e; version=83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f <c4f003d8578f5718fe1ec332bc89f9ff69fd205b

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

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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)
VectorUnavailable
PrivilegesUnavailable
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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