---
id: CVE-2025-71114
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  via_wdt: fix critical boot hang due to unnamed resource allocation

  The VIA watchdog driver uses allocate_resource() to reserve a MMIO
  region for the watchdog control r…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  via_wdt: fix critical boot hang due to unnamed resource allocation

  The VIA watchdog driver uses allocate_resource() to reserve a MMIO
  region for the watchdog control 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'
cwe:
  - CWE-401
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 3.3.1, < 5.10.248'
  - 'linux_kernel >= 5.11, < 5.15.198'
  - 'linux_kernel >= 5.16, < 6.1.160'
  - 'linux_kernel >= 6.2, < 6.6.120'
  - 'linux_kernel >= 6.7, < 6.12.64'
  - 'linux_kernel >= 6.13, < 6.18.3'
  - linux_kernel = 3.3
  - linux_kernel = 6.19
patched:
  - linux_kernel 6.18.3
published: '2026-01-14'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T02:18:22.373'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-71114'
references:
  - url: 'https://git.kernel.org/stable/c/1d56025a3af50db0f3da2792f41eb9943eee5324'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/47c910965c936724070d2a8094a4c3ed8f452856'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7aa31ee9ec92915926e74731378c009c9cc04928'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c6a2dd4f2e4e6cbdfe7a1618160281af897b75db'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c7b986adc9e9336066350542ac5a2005d305ae78'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d2c7c90aca7b37f60f16b2bedcfeb16204f2f35d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f7b6370d0fbee06a867037d675797a606cb62e57'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-019113.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-457936.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.00178
epssPercentile: 0.07315
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-06-10T20:41:15.646108Z'
ingestedAt: '2026-09-08T15:33:26.995Z'
---

## Overview

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

via_wdt: fix critical boot hang due to unnamed resource allocation

The VIA watchdog driver uses allocate_resource() to reserve a MMIO
region for the watchdog control register. However, the allocated
resource was not given a name, which causes the kernel resource tree
to contain an entry marked as "<BAD>" under /proc/iomem on x86
platforms.

During boot, this unnamed resource can lead to a critical hang because
subsequent resource lookups and conflict checks fail to handle the
invalid entry properly.

## Affected

- `linux_kernel >= 3.3.1, < 5.10.248`
- `linux_kernel >= 5.11, < 5.15.198`
- `linux_kernel >= 5.16, < 6.1.160`
- `linux_kernel >= 6.2, < 6.6.120`
- `linux_kernel >= 6.7, < 6.12.64`
- `linux_kernel >= 6.13, < 6.18.3`
- `linux_kernel = 3.3`
- `linux_kernel = 6.19`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.18.3`