CVE-2026-89461

Suspend interference via unsynchronized work cancellation

Published Sep 11, 2026 · Updated Sep 11, 2026

Race condition in the Linux MAX17040 fuel-gauge driver allows attackers to cause unspecified impact via system suspend. max17040_work() requeues itself after each poll, while max17040_suspend() uses non-synchronizing cancellation that does not wait for an active callback. The condition requires the MAX17040 driver and a suspend operation racing the polling callback, which can keep accessing the fuel gauge and requeue work after suspend completes.

CVSS severityUnavailable
Unscored
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Race condition in the Linux MAX17040 fuel-gauge driver allows attackers to cause unspecified impact via system suspend. max17040_work() requeues itself after each poll, while max17040_suspend() uses non-synchronizing cancellation that does not wait for an active callback. The condition requires the MAX17040 driver and a suspend operation racing the polling callback, which can keep accessing the fuel gauge and requeue work after suspend completes.

The record

CVE
CVE-2026-89461
Published
Sep 11, 2026
Updated
Sep 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 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=2.6.31
  2. Affected versionversion=c6f4a42de60b981dd210de01cd3e575835e3158e <36e6ce0f402f965328b27fd31ac793110e8a0c39
  3. Affected versionversion=c6f4a42de60b981dd210de01cd3e575835e3158e <5a863417fb9a1034ab1cfe4fa0de46ce1f95f3ec
  4. Affected versionversion=c6f4a42de60b981dd210de01cd3e575835e3158e <86a3a8a926aa5969c329d1df2d3259f189961bbc
  5. Affected versionversion=c6f4a42de60b981dd210de01cd3e575835e3158e <aad7247bd35ad44af90a5e8974cdff614235b497

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.31; version=c6f4a42de60b981dd210de01cd3e575835e3158e <36e6ce0f402f965328b27fd31ac793110e8a0c39; version=c6f4a42de60b981dd210de01cd3e575835e3158e <5a863417fb9a1034ab1cfe4fa0de46ce1f95f3ec; version=c6f4a42de60b981dd210de01cd3e575835e3158e <86a3a8a926aa5969c329d1df2d3259f189961bbc; version=c6f4a42de60b981dd210de01cd3e575835e3158e <aad7247bd35ad44af90a5e8974cdff614235b497

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)
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo