Vulnerability-Lookup

FKIE_CVE-2025-71106

Vulnerability from fkie_nvd - Published: 2026-01-14 15:15 - Updated: 2026-01-14 16:25

Severity ?

Summary

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.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/222047f68e8565c558728f792f6fef152a1d4d51
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b107196729ff6b9d6cde0a71f49c1243def43328

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2025-71106",
  "lastModified": "2026-01-14T16:25:12.057",
  "metrics": {},
  "published": "2026-01-14T15:15:59.640",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/222047f68e8565c558728f792f6fef152a1d4d51"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b107196729ff6b9d6cde0a71f49c1243def43328"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2025-71106 (GCVE-0-2025-71106)

Vulnerability from cvelistv5 – Published: 2026-01-14 15:05 – Updated: 2026-01-14 15:05

Title

fs: PM: Fix reverse check in filesystems_freeze_callback()

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/b107196729ff6b9d6…
	https://git.kernel.org/stable/c/222047f68e8565c55…

Impacted products

Vendor

Product

Version

Linux

Affected: a3f8f8662771285511ae26c4c8d3ba1cd22159b9 , < b107196729ff6b9d6cde0a71f49c1243def43328 (git)
Affected: a3f8f8662771285511ae26c4c8d3ba1cd22159b9 , < 222047f68e8565c558728f792f6fef152a1d4d51 (git)

Linux

Affected: 6.18
Unaffected: 0 , < 6.18 (semver)
Unaffected: 6.18.3 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/super.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b107196729ff6b9d6cde0a71f49c1243def43328",
              "status": "affected",
              "version": "a3f8f8662771285511ae26c4c8d3ba1cd22159b9",
              "versionType": "git"
            },
            {
              "lessThan": "222047f68e8565c558728f792f6fef152a1d4d51",
              "status": "affected",
              "version": "a3f8f8662771285511ae26c4c8d3ba1cd22159b9",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/super.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.18"
            },
            {
              "lessThan": "6.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.3",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19-rc1",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-14T15:05:55.192Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b107196729ff6b9d6cde0a71f49c1243def43328"
        },
        {
          "url": "https://git.kernel.org/stable/c/222047f68e8565c558728f792f6fef152a1d4d51"
        }
      ],
      "title": "fs: PM: Fix reverse check in filesystems_freeze_callback()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71106",
    "datePublished": "2026-01-14T15:05:55.192Z",
    "dateReserved": "2026-01-13T15:30:19.651Z",
    "dateUpdated": "2026-01-14T15:05:55.192Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2025-71106

CVE-2025-71106 (GCVE-0-2025-71106)

Tags

Sightings

Nomenclature