SB20260919183 - Race condition in Linux kernel regulator driver

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB20260919183

SB20260919183 - Race condition in Linux kernel regulator driver

Published: September 19, 2026

Security Bulletin ID SB20260919183
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) Race condition (CVE-ID: CVE-2026-90360)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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


The vulnerability allows a local user to trigger a kernel warning during system suspend.

The vulnerability exists due to a race condition involving a non-freezable workqueue in the regulator core when delayed regulator cleanup runs concurrently with system suspend. A local user can cause system suspend to overlap with delayed regulator cleanup to trigger a kernel warning during system suspend.

The cleanup work runs approximately 30 seconds after boot to disable unused regulators via I2C. If the I2C adapter is already suspended, the transfer triggers a -ESHUTDOWN warning in __i2c_transfer().


Remediation

Install update from vendor's website.

References