CVE-2026-89939

Device autosuspend prevention via PM reference leak

Published Sep 16, 2026 · Updated Sep 16, 2026

Resource leakage in the Linux Atlas sensor driver allows local users with IIO buffer access to prevent device autosuspend after an error. atlas_buffer_postenable() obtains a runtime PM reference, then returns when atlas_set_interrupt() fails without balancing that reference. The condition requires affected Atlas sensor hardware, IIO buffer enablement, and an interrupt-setup failure; the bounded consequence is persistent device power use.

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

What happened

Resource leakage in the Linux Atlas sensor driver allows local users with IIO buffer access to prevent device autosuspend after an error. atlas_buffer_postenable() obtains a runtime PM reference, then returns when atlas_set_interrupt() fails without balancing that reference. The condition requires affected Atlas sensor hardware, IIO buffer enablement, and an interrupt-setup failure; the bounded consequence is persistent device power use.

The record

CVE
CVE-2026-89939
Published
Sep 16, 2026
Updated
Sep 16, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
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=0e4f336f50debeacd0f81e931e8451f2ae03f685 <43bce901047e95bbf8fb63eb471460642e497604
  2. Affected versionversion=0e4f336f50debeacd0f81e931e8451f2ae03f685 <72daa7eb7fc6202fece0bb56487d72af5c49ccdf
  3. Affected versionversion=0e4f336f50debeacd0f81e931e8451f2ae03f685 <777e8ebfe6b3fa733694977f0f4cf849e07e925c
  4. Affected versionversion=0e4f336f50debeacd0f81e931e8451f2ae03f685 <a595f4d3e4ee1c91c62a298730a77b16dc26b426
  5. Affected versionversion=0e4f336f50debeacd0f81e931e8451f2ae03f685 <aedf8f068d9da774d5cb62e9c9d6e62b2ce64d86
  6. Affected versionversion=0e4f336f50debeacd0f81e931e8451f2ae03f685 <bcd3f72e26314edfce7eaf8d7160b3119c7b7fed
  7. Affected versionversion=0e4f336f50debeacd0f81e931e8451f2ae03f685 <c7e91ae6d7802170f53ece09a4ecc6302265d3e4
  8. Affected versionversion=5.14

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=0e4f336f50debeacd0f81e931e8451f2ae03f685 <43bce901047e95bbf8fb63eb471460642e497604; version=0e4f336f50debeacd0f81e931e8451f2ae03f685 <72daa7eb7fc6202fece0bb56487d72af5c49ccdf; version=0e4f336f50debeacd0f81e931e8451f2ae03f685 <777e8ebfe6b3fa733694977f0f4cf849e07e925c; version=0e4f336f50debeacd0f81e931e8451f2ae03f685 <a595f4d3e4ee1c91c62a298730a77b16dc26b426; version=0e4f336f50debeacd0f81e931e8451f2ae03f685 <aedf8f068d9da774d5cb62e9c9d6e62b2ce64d86; version=0e4f336f50debeacd0f81e931e8451f2ae03f685 <bcd3f72e26314edfce7eaf8d7160b3119c7b7fed; version=0e4f336f50debeacd0f81e931e8451f2ae03f685 <c7e91ae6d7802170f53ece09a4ecc6302265d3e4; version=5.14

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)
Vectorlocal
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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