fs: PM: Fix reverse check in filesystems_freeze_callback()

{
  "id": "8ae21ce880a0ccde7a3ba18670774503874835d2b6c5b55dd2bd99e783d0c9d3",
  "url": "https://osv.dev/vulnerability/CVE-2025-71106",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "fs: PM: Fix reverse check in filesystems_freeze_callback()",
    "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.",
    "evidence": "osv:CVE-2025-71106",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-71106",
      "aliases": [
        "CVE-2025-71106"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a3f8f8662771285511ae26c4c8d3ba1cd22159b9"
                },
                {
                  "fixed": "b107196729ff6b9d6cde0a71f49c1243def43328"
                },
                {
                  "fixed": "222047f68e8565c558728f792f6fef152a1d4d51"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-71106.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.18.0"
                },
                {
                  "fixed": "6.18.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-71106.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.952557304Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/222047f68e8565c558728f792f6fef152a1d4d51",
        "https://git.kernel.org/stable/c/b107196729ff6b9d6cde0a71f49c1243def43328",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71106.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-71106",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71106.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-71106",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 505953,
  "published_at": "2026-01-14T15:05:55.192+00:00"
}