GHSA-G38X-R7HR-WWFF

Vulnerability from github – Published: 2026-01-14 15:33 – Updated: 2026-10-15 03:35
VLAI
Details

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 "" 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.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2025-71114"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-14T15:16:01Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvia_wdt: fix critical boot hang due to unnamed resource allocation\n\nThe VIA watchdog driver uses allocate_resource() to reserve a MMIO\nregion for the watchdog control register. However, the allocated\nresource was not given a name, which causes the kernel resource tree\nto contain an entry marked as \"\u003cBAD\u003e\" under /proc/iomem on x86\nplatforms.\n\nDuring boot, this unnamed resource can lead to a critical hang because\nsubsequent resource lookups and conflict checks fail to handle the\ninvalid entry properly.",
  "id": "GHSA-g38x-r7hr-wwff",
  "modified": "2026-10-15T03:35:07Z",
  "published": "2026-01-14T15:33:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71114"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d56025a3af50db0f3da2792f41eb9943eee5324"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/47c910965c936724070d2a8094a4c3ed8f452856"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7aa31ee9ec92915926e74731378c009c9cc04928"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c6a2dd4f2e4e6cbdfe7a1618160281af897b75db"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c7b986adc9e9336066350542ac5a2005d305ae78"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d2c7c90aca7b37f60f16b2bedcfeb16204f2f35d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f7b6370d0fbee06a867037d675797a606cb62e57"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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