CVE-2026-23081

kernel: Linux kernel: Denial of Service in intel-xway PHY driver due to OF node reference count leakage

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · February 4, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's intel-xway PHY (Physical Layer) driver. This vulnerability involves an improper management of Open Firmware (OF) node reference counts. A local attacker could exploit this by repeatedly triggering a specific condition, leading to resource exhaustion and ultimately a denial of service (DoS) on the system.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-772 · Missing Release of Resource after Effective Lifetime