---
id: CVE-2026-93265
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  PCI/pwrctrl: tc9563: Fix parsing the integrated Ethernet MAC Endpoint node

  DSP3 has an integrated Ethernet MAC Endpoint which has its own set of
  config registers for c…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  PCI/pwrctrl: tc9563: Fix parsing the integrated Ethernet MAC Endpoint node

  DSP3 has an integrated Ethernet MAC Endpoint which has its own set of
  config registers for c…
severity: high
cvss: 7.7
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 4c9c7be47310c1dbd7b6d37d45986123f5b133b4 <
    972c771674e88a43c8310c459ea30f0f0d0c168f
  - >-
    Linux >= 4c9c7be47310c1dbd7b6d37d45986123f5b133b4 <
    6e5e6c2194b2acbded5b12ed80590d215b786d29
  - Linux 6.19
published: '2026-09-24'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T05:17:01.393'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93265'
references:
  - url: 'https://git.kernel.org/stable/c/6e5e6c2194b2acbded5b12ed80590d215b786d29'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/972c771674e88a43c8310c459ea30f0f0d0c168f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-24T16:47:15.837Z'
---

## Overview

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

PCI/pwrctrl: tc9563: Fix parsing the integrated Ethernet MAC Endpoint node

DSP3 has an integrated Ethernet MAC Endpoint which has its own set of
config registers for configuring settings such as ASPM. The Endpoint device
has two physical functions and those two functions share the same settings.

Parse the Endpoint node under DSP3 instead of parsing both functions.  The
existing parsing logic also has one OOB issue as parsing both functions
will result in accessing past the tc9563_pwrctrl->cfg array.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.