SB20261022275 - Improper update of reference count in Linux kernel iio accel driver

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Main Vulnerability Database SB20261022275

SB20261022275 - Improper update of reference count in Linux kernel iio accel driver

Published: October 22, 2026

Security Bulletin ID SB20261022275
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper update of reference count (CVE-ID: CVE-2026-98679)

CWE-ID: CWE-911 - Improper Update of Reference Count

CVSSv4: 0 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local privileged user to underflow the runtime power-management usage count and trigger a kernel warning.

The vulnerability exists due to improper runtime power-management reference counting in kxcjk1013_write_event_config() in the Linux kernel's kxcjk-1013 accelerometer driver when processing repeated writes that disable events. A local privileged user can submit duplicate disable requests through the event enable attribute to drop a runtime power-management reference that was not acquired for the request, causing a usage-count underflow and a "Runtime PM usage count underflow" warning.


Remediation

Install update from vendor's website.

References