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CVE-2025-71106

Estado: AnalizadaMedia (5.5)—

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

fs: PM: Fix reverse check in filesystems_freeze_callback()

The freeze_all_ptr check in filesystems_freeze_callback() introduced by commit a3f8f8662771 ("power: always freeze efivarfs") is reverse which quite confusingly causes all file systems to be frozen when filesystem_freeze_enabled is false.

On my systems it causes the WARN_ON_ONCE() in __set_task_frozen() to trigger, most likely due to an attempt to freeze a file system that is not ready for that.

Add a logical negation to the check in question to reverse it as appropriate.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2025-71106",
  "cveTags": [],
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        "source": "nvd@nist.gov",
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          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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          "vendor": "Linux",
          "product": "Linux",
          "versions": [
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          "programFiles": [
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          "defaultStatus": "unaffected"
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        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
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              "version": "6.18"
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              "version": "0",
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              "versionType": "semver"
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              "version": "6.18.3",
              "versionType": "semver",
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              "status": "unaffected",
              "version": "6.19",
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          "programFiles": [
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          "defaultStatus": "affected"
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  "published": "2026-01-14T15:15:59.640",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/222047f68e8565c558728f792f6fef152a1d4d51",
      "tags": [
        "Patch"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b107196729ff6b9d6cde0a71f49c1243def43328",
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs: PM: Fix reverse check in filesystems_freeze_callback()\n\nThe freeze_all_ptr check in filesystems_freeze_callback() introduced by\ncommit a3f8f8662771 (\"power: always freeze efivarfs\") is reverse which\nquite confusingly causes all file systems to be frozen when\nfilesystem_freeze_enabled is false.\n\nOn my systems it causes the WARN_ON_ONCE() in __set_task_frozen() to\ntrigger, most likely due to an attempt to freeze a file system that is\nnot ready for that.\n\nAdd a logical negation to the check in question to reverse it as\nappropriate."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nfs: PM: Corrige la comprobación inversa en filesystems_freeze_callback()\n\nLa comprobación freeze_all_ptr en filesystems_freeze_callback() introducida por el commit a3f8f8662771 ('power: always freeze efivarfs') es inversa, lo que de forma bastante confusa provoca que todos los sistemas de archivos se congelen cuando filesystem_freeze_enabled es falso.\n\nEn mis sistemas, provoca que el WARN_ON_ONCE() en __set_task_frozen() se active, muy probablemente debido a un intento de congelar un sistema de archivos que no está listo para ello.\n\nAñade una negación lógica a la comprobación en cuestión para invertirla según corresponda."
    }
  ],
  "lastModified": "2026-06-17T10:03:40.593",
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