SB20261022105 - Missing Release of Resource after Effective Lifetime in Linux kernel gpio driver

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Main Vulnerability Database SB20261022105

SB20261022105 - Missing Release of Resource after Effective Lifetime in Linux kernel gpio driver

Published: October 22, 2026

Security Bulletin ID SB20261022105
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Partial DoS

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Missing Release of Resource after Effective Lifetime (CVE-ID: CVE-2026-98529)

CWE-ID: CWE-772 - Missing Release of Resource after Effective Lifetime

CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a local user to interfere with runtime power management, potentially preventing a parent device from entering runtime suspend.

The vulnerability exists due to a missing runtime power-management reference release in arizona_gpio_direction_out() in the Linux kernel's Arizona GPIO driver when a register update fails while switching a persistent GPIO line from input to output. A local user can initiate this direction change and, if regmap_update_bits() fails, leave an outstanding reference that may prevent the parent device from entering runtime suspend.


Remediation

Install update from vendor's website.

References