SB2025090868 - NULL pointer dereference in Linux kernel ufs host driver



SB2025090868 - NULL pointer dereference in Linux kernel ufs host driver

Published: September 8, 2025

Security Bulletin ID SB2025090868
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 security vulnerability.


1) NULL pointer dereference (CVE-ID: CVE-2025-39674)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the ufs_qcom_mcq_esi_handler() and ufs_qcom_config_esi() functions in drivers/ufs/host/ufs-qcom.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.