FKIE_CVE-2025-68168

Vulnerability from fkie_nvd - Published: 2025-12-16 14:15 - Updated: 2026-10-14 13:10
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: jfs: fix uninitialized waitqueue in transaction manager The transaction manager initialization in txInit() was not properly initializing TxBlock[0].waitor waitqueue, causing a crash when txEnd(0) is called on read-only filesystems. When a filesystem is mounted read-only, txBegin() returns tid=0 to indicate no transaction. However, txEnd(0) still gets called and tries to access TxBlock[0].waitor via tid_to_tblock(0), but this waitqueue was never initialized because the initialization loop started at index 1 instead of 0. This causes a 'non-static key' lockdep warning and system crash: INFO: trying to register non-static key in txEnd Fix by ensuring all transaction blocks including TxBlock[0] have their waitqueues properly initialized during txInit().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/038861414ab383b41dd35abbf9ff0ef715592d53
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2a9575a372182ca075070b3cd77490dcf0c951e7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/300b072df72694ea330c4c673c035253e07827b8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8cae9cf23e0bd424ac904e753639a587543ce03a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a2aa97cde9857f881920635a2e3d3b11769619c5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cbf2f527ae4ca7c7dabce42e85e8deb58588a37e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d2dd7ca05a11685c314e62802a55e8d67a90e974
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d6af7fce2e162ac68e85d3a11eb6ac8c35b24b64
Impacted products
Vendor Product Version
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{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/jfs/jfs_txnmgr.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d6af7fce2e162ac68e85d3a11eb6ac8c35b24b64",
              "status": "affected",
              "version": "2a8807f9f511c64de0c7cc9900a1683e3d72a3e5",
              "versionType": "git"
            },
            {
              "lessThan": "8cae9cf23e0bd424ac904e753639a587543ce03a",
              "status": "affected",
              "version": "5c094ca994824e038b6a97835ded4e5d1d808504",
              "versionType": "git"
            },
            {
              "lessThan": "a2aa97cde9857f881920635a2e3d3b11769619c5",
              "status": "affected",
              "version": "2febd5f81e4bfba61d9f374dcca628aff374cc56",
              "versionType": "git"
            },
            {
              "lessThan": "d2dd7ca05a11685c314e62802a55e8d67a90e974",
              "status": "affected",
              "version": "aa7cdf487ab3fa47284daaccc3d7d5de01c6a84c",
              "versionType": "git"
            },
            {
              "lessThan": "2a9575a372182ca075070b3cd77490dcf0c951e7",
              "status": "affected",
              "version": "95e2b352c03b0a86c5717ba1d24ea20969abcacc",
              "versionType": "git"
            },
            {
              "lessThan": "cbf2f527ae4ca7c7dabce42e85e8deb58588a37e",
              "status": "affected",
              "version": "95e2b352c03b0a86c5717ba1d24ea20969abcacc",
              "versionType": "git"
            },
            {
              "lessThan": "038861414ab383b41dd35abbf9ff0ef715592d53",
              "status": "affected",
              "version": "95e2b352c03b0a86c5717ba1d24ea20969abcacc",
              "versionType": "git"
            },
            {
              "lessThan": "300b072df72694ea330c4c673c035253e07827b8",
              "status": "affected",
              "version": "95e2b352c03b0a86c5717ba1d24ea20969abcacc",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a88efca805bea93cea9187dfd00835aa7093bf1b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "97c1f26e4d4af55e8584e4646dd5c5fa7baf62c7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b0ed8ed0428ee96092da6fefa5cfacbe4abed701",
              "versionType": "git"
            },
            {
              "lessThan": "5.4.302",
              "status": "affected",
              "version": "5.4.255",
              "versionType": "semver"
            },
            {
              "lessThan": "5.10.247",
              "status": "affected",
              "version": "5.10.192",
              "versionType": "semver"
            },
            {
              "lessThan": "5.15.197",
              "status": "affected",
              "version": "5.15.123",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1.159",
              "status": "affected",
              "version": "6.1.42",
              "versionType": "semver"
            },
            {
              "lessThan": "4.15",
              "status": "affected",
              "version": "4.14.324",
              "versionType": "semver"
            },
            {
              "lessThan": "4.20",
              "status": "affected",
              "version": "4.19.293",
              "versionType": "semver"
            },
            {
              "lessThan": "6.5",
              "status": "affected",
              "version": "6.4.7",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/jfs/jfs_txnmgr.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.5"
            },
            {
              "lessThan": "6.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.302",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.247",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.197",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.117",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.58",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njfs: fix uninitialized waitqueue in transaction manager\n\nThe transaction manager initialization in txInit() was not properly\ninitializing TxBlock[0].waitor waitqueue, causing a crash when\ntxEnd(0) is called on read-only filesystems.\n\nWhen a filesystem is mounted read-only, txBegin() returns tid=0 to\nindicate no transaction. However, txEnd(0) still gets called and\ntries to access TxBlock[0].waitor via tid_to_tblock(0), but this\nwaitqueue was never initialized because the initialization loop\nstarted at index 1 instead of 0.\n\nThis causes a \u0027non-static key\u0027 lockdep warning and system crash:\n  INFO: trying to register non-static key in txEnd\n\nFix by ensuring all transaction blocks including TxBlock[0] have\ntheir waitqueues properly initialized during txInit()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\njfs: correcci\u00f3n de waitqueue no inicializada en el gestor de transacciones\n\nLa inicializaci\u00f3n del gestor de transacciones en txInit() no estaba inicializando correctamente la waitqueue TxBlock[0].waitor, causando un fallo cuando se llama a txEnd(0) en sistemas de archivos de solo lectura.\n\nCuando un sistema de archivos se monta como de solo lectura, txBegin() devuelve tid=0 para indicar que no hay transacci\u00f3n. Sin embargo, txEnd(0) a\u00fan se llama e intenta acceder a TxBlock[0].waitor a trav\u00e9s de tid_to_tblock(0), pero esta waitqueue nunca fue inicializada porque el bucle de inicializaci\u00f3n comenz\u00f3 en el \u00edndice 1 en lugar de 0.\n\nEsto causa una advertencia de lockdep de \u0027non-static key\u0027 y un fallo del sistema:\n  INFO: intentando registrar una clave no est\u00e1tica en txEnd\n\nCorrecci\u00f3n asegurando que todos los bloques de transacci\u00f3n, incluyendo TxBlock[0], tengan sus waitqueues correctamente inicializadas durante txInit()."
    }
  ],
  "id": "CVE-2025-68168",
  "lastModified": "2026-10-14T13:10:00.187",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-12-16T14:15:48.647",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/038861414ab383b41dd35abbf9ff0ef715592d53"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2a9575a372182ca075070b3cd77490dcf0c951e7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/300b072df72694ea330c4c673c035253e07827b8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8cae9cf23e0bd424ac904e753639a587543ce03a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a2aa97cde9857f881920635a2e3d3b11769619c5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cbf2f527ae4ca7c7dabce42e85e8deb58588a37e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d2dd7ca05a11685c314e62802a55e8d67a90e974"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d6af7fce2e162ac68e85d3a11eb6ac8c35b24b64"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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