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CVE-2022-49064

Estado: AnalizadaMedia (5.5)—

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

cachefiles: unmark inode in use in error path

Unmark inode in use if error encountered. If the in-use flag leakage occurs in cachefiles_open_file(), Cachefiles will complain "Inode already in use" when later another cookie with the same index key is looked up.

If the in-use flag leakage occurs in cachefiles_create_tmpfile(), though the "Inode already in use" warning won't be triggered, fix the leakage anyway.

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-2022-49064",
  "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": "1f08c925e7a38002bde509e66f6f891468848511",
              "lessThan": "b2055abafd3d4ee0376fb3eed5cae866316995a1",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "1f08c925e7a38002bde509e66f6f891468848511",
              "lessThan": "ea5dc046127e857a7873ae55fd57c866e9e86fb2",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "fs/cachefiles/namei.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.17",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.17.4",
              "versionType": "semver",
              "lessThanOrEqual": "5.17.*"
            },
            {
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "fs/cachefiles/namei.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-02-26T07:00:43.637",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/b2055abafd3d4ee0376fb3eed5cae866316995a1",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ea5dc046127e857a7873ae55fd57c866e9e86fb2",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncachefiles: unmark inode in use in error path\n\nUnmark inode in use if error encountered. If the in-use flag leakage\noccurs in cachefiles_open_file(), Cachefiles will complain \"Inode\nalready in use\" when later another cookie with the same index key is\nlooked up.\n\nIf the in-use flag leakage occurs in cachefiles_create_tmpfile(), though\nthe \"Inode already in use\" warning won't be triggered, fix the leakage\nanyway."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: cachefiles: desmarcar inodo en uso en ruta de error Desmarcar inodo en uso si se encuentra un error. Si la fuga de la bandera en uso ocurre en cachefiles_open_file(), Cachefiles mostrará el mensaje \"Inodo ya en uso\" cuando más tarde se busque otra cookie con la misma clave de índice. Si la fuga de la bandera en uso ocurre en cachefiles_create_tmpfile(), aunque no se active la advertencia \"Inodo ya en uso\", solucione la fuga de todos modos."
    }
  ],
  "lastModified": "2026-06-17T05:16:58.910",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "62D8CC4C-A7BD-4651-8B8B-B5D5AABB585E",
              "versionEndExcluding": "5.17.4",
              "versionStartIncluding": "5.17"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6AD94161-84BB-42E6-9882-4FC0C42E9FC1"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7AB06DDF-3C2B-416D-B448-E990D8FF67A9"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}