SB20260916118 - Release of invalid pointer or reference in Linux kernel cpuidle driver

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Main Vulnerability Database SB20260916118

SB20260916118 - Release of invalid pointer or reference in Linux kernel cpuidle driver

Published: September 16, 2026

Security Bulletin ID SB20260916118
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Release of invalid pointer or reference (CVE-ID: CVE-2026-89992)

CWE-ID: CWE-763 - Release of invalid pointer or reference

CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to compromise confidentiality, integrity, and availability.

The vulnerability exists due to an invalid pointer release in the dt_idle_genpd cpuidle power-domain code when freeing an idle power-domain name. A remote attacker can trigger the release of a pointer to the basename rather than the original allocation to compromise confidentiality, integrity, and availability.


Remediation

Install update from vendor's website.

References