CVE-2026-89438

Updated on 11 Sep 2026

Severity

Awaiting Analysis

Details

Overview

About vulnerability

In the Linux kernel, the following vulnerability has been resolved:

platform/x86: ISST: Validate logical CPU id and clos id

Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate MMIO offset.

Details

Affected product:
Debian 10 ELS , Debian 11 ELS
Affected packages:
linux @ 4.19.0 (+1 more)