SB20260507141 - Out-of-bounds read in Linux kernel ras driver



SB20260507141 - Out-of-bounds read in Linux kernel ras driver

Published: May 7, 2026

Security Bulletin ID SB20260507141
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) Out-of-bounds read (CVE-ID: CVE-2026-43201)

CWE-ID: CWE-125 - Out-of-bounds read

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 attacker to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in log_arm_hw_error when processing malformed ARM processor error records. A local attacker can provide a very small or incomplete error record to trigger a kernel OOPS and cause a denial of service.


Remediation

Install update from vendor's website.