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CVE-2026-23251

Estado: AnalizadaMedia (5.5)—

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

xfs: only call xf{array,blob}_destroy if we have a valid pointer

Only call the xfarray and xfblob destructor if we have a valid pointer, and be sure to null out that pointer afterwards. Note that this patch fixes a large number of commits, most of which were merged between 6.9 and 6.10.

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-2026-23251",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "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
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "ab97f4b1c030750f2475bf4da8a9554d02206640",
              "lessThan": "5de5be3ed7e7fa4ebde4f4b58fb9a629644f9202",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ab97f4b1c030750f2475bf4da8a9554d02206640",
              "lessThan": "c9ccefacae0d8091683447bc338bd7741417039d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ab97f4b1c030750f2475bf4da8a9554d02206640",
              "lessThan": "d827612c81a26cc1dd83a211cfcb5ad8765da0c4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ab97f4b1c030750f2475bf4da8a9554d02206640",
              "lessThan": "ba408d299a3bb3c5309f40c5326e4fb83ead4247",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "fs/xfs/scrub/agheader_repair.c",
            "fs/xfs/scrub/attr_repair.c",
            "fs/xfs/scrub/dir_repair.c",
            "fs/xfs/scrub/dirtree.c",
            "fs/xfs/scrub/nlinks.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.10",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.75",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.16",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "6.19.6",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "fs/xfs/scrub/agheader_repair.c",
            "fs/xfs/scrub/attr_repair.c",
            "fs/xfs/scrub/dir_repair.c",
            "fs/xfs/scrub/dirtree.c",
            "fs/xfs/scrub/nlinks.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-03-18T18:16:23.090",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/5de5be3ed7e7fa4ebde4f4b58fb9a629644f9202",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ba408d299a3bb3c5309f40c5326e4fb83ead4247",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c9ccefacae0d8091683447bc338bd7741417039d",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d827612c81a26cc1dd83a211cfcb5ad8765da0c4",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: only call xf{array,blob}_destroy if we have a valid pointer\n\nOnly call the xfarray and xfblob destructor if we have a valid pointer,\nand be sure to null out that pointer afterwards.  Note that this patch\nfixes a large number of commits, most of which were merged between 6.9\nand 6.10."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nxfs: solo llamar a xf{array,blob}_destroy si tenemos un puntero válido\n\nSolo llamar al destructor xfarray y xfblob si tenemos un puntero válido, y asegurarse de anular ese puntero después. Tenga en cuenta que este parche soluciona un gran número de commits, la mayoría de los cuales fueron fusionados entre 6.9 y 6.10."
    }
  ],
  "lastModified": "2026-06-17T10:21:11.323",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CB67FC73-CF7B-41DB-A5A5-423C53BE93EF",
              "versionEndExcluding": "6.12.75",
              "versionStartIncluding": "6.10"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B",
              "versionEndExcluding": "6.18.16",
              "versionStartIncluding": "6.13"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67",
              "versionEndExcluding": "6.19.6",
              "versionStartIncluding": "6.19"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}