SB20260625105 - Improper Validation of Specified Quantity in Input in Linux kernel md driver

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Main Vulnerability Database SB20260625105

SB20260625105 - Improper Validation of Specified Quantity in Input in Linux kernel md driver

Published: June 25, 2026

Security Bulletin ID SB20260625105
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Validation of Specified Quantity in Input (CVE-ID: CVE-2026-53061)

CWE-ID: CWE-1284 - Improper Validation of Specified Quantity in Input

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


The vulnerability allows a local user to cause data loss.

The vulnerability exists due to improper state validation in the dm-cache target when resuming a preloaded table in passthrough mode while dirty mappings are present. A local user can preload and resume a crafted dm-cache table configuration to cause data loss.

Exploitation requires local access to device-mapper management and occurs when metadata updates are still ongoing during table preloading.


Remediation

Install update from vendor's website.

References