---
id: CVE-2025-71114
title: 'via_wdt: fix critical boot hang due to unnamed resource allocation'
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: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d <
    1d56025a3af50db0f3da2792f41eb9943eee5324
  - >-
    Linux >= dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d <
    c7b986adc9e9336066350542ac5a2005d305ae78
  - >-
    Linux >= dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d <
    47c910965c936724070d2a8094a4c3ed8f452856
  - >-
    Linux >= dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d <
    d2c7c90aca7b37f60f16b2bedcfeb16204f2f35d
  - >-
    Linux >= dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d <
    f7b6370d0fbee06a867037d675797a606cb62e57
  - >-
    Linux >= dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d <
    c6a2dd4f2e4e6cbdfe7a1618160281af897b75db
  - >-
    Linux >= dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d <
    7aa31ee9ec92915926e74731378c009c9cc04928
  - Linux 3.3
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-06-10T20:41:15.646108Z'
published: '2026-01-14'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T08:43:57.677Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-71114'
references:
  - url: 'https://git.kernel.org/stable/c/1d56025a3af50db0f3da2792f41eb9943eee5324'
  - url: 'https://git.kernel.org/stable/c/c7b986adc9e9336066350542ac5a2005d305ae78'
  - url: 'https://git.kernel.org/stable/c/47c910965c936724070d2a8094a4c3ed8f452856'
  - url: 'https://git.kernel.org/stable/c/d2c7c90aca7b37f60f16b2bedcfeb16204f2f35d'
  - url: 'https://git.kernel.org/stable/c/f7b6370d0fbee06a867037d675797a606cb62e57'
  - url: 'https://git.kernel.org/stable/c/c6a2dd4f2e4e6cbdfe7a1618160281af897b75db'
  - url: 'https://git.kernel.org/stable/c/7aa31ee9ec92915926e74731378c009c9cc04928'
tags:
  - cve.org
epss: 0.00144
epssPercentile: 0.03014
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 >= dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d < 1d56025a3af50db0f3da2792f41eb9943eee5324`
- `Linux >= dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d < c7b986adc9e9336066350542ac5a2005d305ae78`
- `Linux >= dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d < 47c910965c936724070d2a8094a4c3ed8f452856`
- `Linux >= dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d < d2c7c90aca7b37f60f16b2bedcfeb16204f2f35d`
- `Linux >= dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d < f7b6370d0fbee06a867037d675797a606cb62e57`
- `Linux >= dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d < c6a2dd4f2e4e6cbdfe7a1618160281af897b75db`
- `Linux >= dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d < 7aa31ee9ec92915926e74731378c009c9cc04928`
- `Linux 3.3`

## Remediation

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