Out-of-bounds read in Linux kernel - CVE-2026-43201

 

Out-of-bounds read in Linux kernel - CVE-2026-43201

Published: May 7, 2026


Vulnerability identifier: #VU130530
CSH Severity: Low
CVSS v4.0: 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
CVE-ID: CVE-2026-43201
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel

Detailed vulnerability description

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.


How to mitigate CVE-2026-43201

Install security update from vendor's repository.

Sources