---
id: CVE-2026-80999
title: >-
  kernel: net: dsa: realtek: use gpiod_set_value_cansleep for reset GPIO
  (CVE-2026-80999)
summary: >-
  A flaw was found in the Linux kernel's Realtek Digital Subscriber Line (DSA)
  driver. The driver incorrectly uses gpiod_set_value() instead of
  gpiod_set_value_cansleep() for reset GPIO operations. This can lead to system
  warnings when the r…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe: CWE-663
vendor: Red Hat
product: Linux
affected:
  - >-
    Linux >= d8652956cf37c5caa8c19e0b99ce5ca235c6d5de <
    c32cf5292a0dd70c4afc138b4dc45743a190cd5a
  - >-
    Linux >= d8652956cf37c5caa8c19e0b99ce5ca235c6d5de <
    f71087e7c63aa3e99bf65d7ddf91eb4fd3545778
  - >-
    Linux >= d8652956cf37c5caa8c19e0b99ce5ca235c6d5de <
    1610a8c2b93e815e3dc8643a2a69ab1c37975a6a
  - >-
    Linux >= d8652956cf37c5caa8c19e0b99ce5ca235c6d5de <
    fb58b6a696b30bcbfbe0cfc0a91b19c816a955fc
  - Linux 4.19
published: '2026-09-11'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T20:26:53+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80999.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80999.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-80999'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532457'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-80999'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80999'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80999.mbox
  - url: 'https://git.kernel.org/stable/c/c32cf5292a0dd70c4afc138b4dc45743a190cd5a'
  - url: 'https://git.kernel.org/stable/c/f71087e7c63aa3e99bf65d7ddf91eb4fd3545778'
  - url: 'https://git.kernel.org/stable/c/1610a8c2b93e815e3dc8643a2a69ab1c37975a6a'
  - url: 'https://git.kernel.org/stable/c/fb58b6a696b30bcbfbe0cfc0a91b19c816a955fc'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00209
epssPercentile: 0.09842
ingestedAt: '2026-09-14T00:35:28.531Z'
---

## Overview

A flaw was found in the Linux kernel's Realtek Digital Subscriber Line (DSA) driver. The driver incorrectly uses gpiod_set_value() instead of gpiod_set_value_cansleep() for reset GPIO operations. This can lead to system warnings when the reset GPIO is managed by a sleeping controller, potentially causing unexpected behavior or instability during the probe path.

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80999.json)

**kernel: net: dsa: realtek: use gpiod_set_value_cansleep for reset GPIO** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-14.

Not affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

## Remediation

Refer to the advisory for fix availability.