iio: chemical: atlas-sensor: fix PM reference leak in buffer postenable
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: chemical: atlas-sensor: fix PM reference leak in buffer postenable atlas_buffer_postenable() acquires a runtime PM reference with pm_runtime_resume_and_get() but returns the result of atlas_set_interrupt() directly. If atlas_set_interrupt() fails, the runtime PM reference is leaked and the device can never autosuspend. Add pm_runtime_put_autosuspend() on the error path to balance the reference.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.51, 7.2.5, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-89939
- 2026-10-03 Alias added: GHSA-w73m-f97h-p6pv
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-29 Affected versions changed · Red Hat
- 2026-10-29 CVSS score added · Red Hat
- 2026-11-06 Affected versions changed · Red Hat
References
Other 7
- https://git.kernel.org/stable/c/c7e91ae6d7802170f53ece09a4ecc6302265d3e4
- https://git.kernel.org/stable/c/a595f4d3e4ee1c91c62a298730a77b16dc26b426
- https://git.kernel.org/stable/c/72daa7eb7fc6202fece0bb56487d72af5c49ccdf
- https://git.kernel.org/stable/c/aedf8f068d9da774d5cb62e9c9d6e62b2ce64d86
- https://git.kernel.org/stable/c/43bce901047e95bbf8fb63eb471460642e497604
- https://git.kernel.org/stable/c/777e8ebfe6b3fa733694977f0f4cf849e07e925c
- https://git.kernel.org/stable/c/bcd3f72e26314edfce7eaf8d7160b3119c7b7fed
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Sources
- CVE-2026-89939 · CVE Program
- CVE-2026-89939 · NVD
- FIRST EPSS
- GHSA-w73m-f97h-p6pv · GitHub Advisory Database · CC BY 4.0
- CVE-2026-89939 · Red Hat security data · CC BY 4.0
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