SB2026050743 - Race condition in Linux kernel ufs core driver

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Main Vulnerability Database SB2026050743

SB2026050743 - Race condition in Linux kernel ufs core driver

Published: May 7, 2026

Security Bulletin ID SB2026050743
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Race condition (CVE-ID: CVE-2026-43275)

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

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in the ufs core driver exception event handling work when suspending the system with the runtime power management level set to UFS_PM_LVL_0. A local user can trigger suspend while exception handling work is pending to cause a denial of service.

The issue occurs because the device power mode and link state remain active at this power management level, allowing exception handling to access the host controller after the system has entered a deep power-down state.


Remediation

Install update from vendor's website.

References