SB2025012146 - Out-of-bounds read in Linux kernel md driver



SB2025012146 - Out-of-bounds read in Linux kernel md driver

Published: January 21, 2025 Updated: May 11, 2025

Security Bulletin ID SB2025012146
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) Out-of-bounds read (CVE-ID: CVE-2025-21664)

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

The vulnerability exists due to an out-of-bounds read error within the get_first_thin() function in drivers/md/dm-thin.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.