SB20260325164 - On-Chip Debug and Test Interface With Improper Access Control in Linux kernel target driver

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Main Vulnerability Database SB20260325164

SB20260325164 - On-Chip Debug and Test Interface With Improper Access Control in Linux kernel target driver

Published: March 25, 2026

Security Bulletin ID SB20260325164
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) On-Chip Debug and Test Interface With Improper Access Control (CVE-ID: CVE-2026-23292)

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

The vulnerability exists due to improper locking mechanism in the SCSI target subsystem when handling configuration file writes. A local user can provide a specially crafted configuration input to cause recursive semaphore locking, leading to a system crash or hang.

Exploitation requires access to the target's configuration filesystem (configfs) and the ability to write to the db_root parameter. No additional privileges beyond standard configfs access are required.


Remediation

Install update from vendor's website.

References