Runtime PM reference leak in Linux kernel Arizona GPIO driver
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
The Linux kernel from 4.13 is affected by a runtime PM reference leak in the Arizona GPIO driver. When arizona_gpio_direction_out() switches a persistent GPIO line from input to output and a later register update fails, the runtime PM reference taken on the parent device is never dropped.
Written with Claude Haiku 5.5 from the sources below · 2026-11-07
Description from the CNA
In the Linux kernel, the following vulnerability has been resolved: gpio: arizona: Fix runtime PM leak in arizona_gpio_direction_out() Switching a persistent GPIO line from input to output acquires a runtime PM reference on the parent device, but if the subsequent regmap_update_bits() fails the reference is never dropped and no later direction_in() can balance it since the direction was never changed. Drop the reference on the update failure path.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
Fixed in Linux kernel 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, 6.18.55, 7.2.9 and 7.3.
Written with Claude Haiku 5.5 from the sources below · 2026-11-07
- Fix · CNA Linux (Linux) Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, 6.18.55, 7.2.9, 7.3
Vendor assessments
Red Hat
Red Hat rating: Low. 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
- 2026-10-18 Threatist record created from CVE-2026-98529
- 2026-10-18 Alias added: GHSA-42qh-8w7w-426q
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-20 Affected versions changed · Red Hat
- 2026-10-20 CVSS score added · Red Hat
- 2026-11-07 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/40c010c1866382cb63ba7497d6ec74fcc60ab9cf
- https://git.kernel.org/stable/c/61ed58b745c1186006b8357da651abbb7a6bff17
- https://git.kernel.org/stable/c/5c8e87f33b68557a725e72f34051299f55c6fa9e
- https://git.kernel.org/stable/c/9d8d6cddcb7c0b8125f3a9e52492e929674009d8
- https://git.kernel.org/stable/c/9ee200f484983b0a178c593e57d2fe3e67061ee8
- https://git.kernel.org/stable/c/a9f738487c11fb512dadef097b56020239c21810
- https://git.kernel.org/stable/c/39748357db26b20a02ea2a25ce48943e6c6d6286
- https://git.kernel.org/stable/c/e9d810279f84b30738f7790c0ed15f8dd5b9024a
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Sources
- CVE-2026-98529 · CVE Program
- CVE-2026-98529 · NVD
- FIRST EPSS
- GHSA-42qh-8w7w-426q · GitHub Advisory Database · CC BY 4.0
- CVE-2026-98529 · Red Hat security data · CC BY 4.0
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