FKIE_CVE-2022-49668

Vulnerability from fkie_nvd - Published: 2025-02-26 07:01 - Updated: 2026-06-17 05:18
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: exynos-ppmu: Fix refcount leak in of_get_devfreq_events of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. This function only calls of_node_put() in normal path, missing it in error paths. Add missing of_node_put() to avoid refcount leak.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/01121e39ef537289926ae6f5374dce92c796d863Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/194781229d4cbc804b8ded13156eb8addce87d6cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bdecd912e99acfd61507f1720d3f4eed1b3418d8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e65027fdebbacd40595e96ef7b5d2418f71bddf2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f44b799603a9b5d2e375b0b2d54dd0b791eddfc2Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.19
linux linux_kernel 5.19
linux linux_kernel 5.19
linux linux_kernel 5.19
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/devfreq/event/exynos-ppmu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bdecd912e99acfd61507f1720d3f4eed1b3418d8",
              "status": "affected",
              "version": "f262f28c147051e7aa6daaf4fb5996833ffadff4",
              "versionType": "git"
            },
            {
              "lessThan": "e65027fdebbacd40595e96ef7b5d2418f71bddf2",
              "status": "affected",
              "version": "f262f28c147051e7aa6daaf4fb5996833ffadff4",
              "versionType": "git"
            },
            {
              "lessThan": "01121e39ef537289926ae6f5374dce92c796d863",
              "status": "affected",
              "version": "f262f28c147051e7aa6daaf4fb5996833ffadff4",
              "versionType": "git"
            },
            {
              "lessThan": "194781229d4cbc804b8ded13156eb8addce87d6c",
              "status": "affected",
              "version": "f262f28c147051e7aa6daaf4fb5996833ffadff4",
              "versionType": "git"
            },
            {
              "lessThan": "f44b799603a9b5d2e375b0b2d54dd0b791eddfc2",
              "status": "affected",
              "version": "f262f28c147051e7aa6daaf4fb5996833ffadff4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/devfreq/event/exynos-ppmu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.0"
            },
            {
              "lessThan": "4.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.204",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.129",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "362570AA-00CD-4314-9B1A-3EB71E9C7D7C",
              "versionEndExcluding": "5.4.204",
              "versionStartIncluding": "4.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DAAE3E52-3C60-40CA-A245-AE5660F45CD8",
              "versionEndExcluding": "5.10.129",
              "versionStartIncluding": "5.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "70DCF327-F4B6-4CDB-8C9E-98E909E60127",
              "versionEndExcluding": "5.15.53",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8261A22B-B156-4045-AE8E-AA9E95E7930C",
              "versionEndExcluding": "5.18.10",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "A8C30C2D-F82D-4D37-AB48-D76ABFBD5377",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "BF8547FC-C849-4F1B-804B-A93AE2F04A92",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "F3068028-F453-4A1C-B80F-3F5609ACEF60",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "2E9C0DB0-D349-489F-A3D6-B77214E93A8A",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPM / devfreq: exynos-ppmu: Fix refcount leak in of_get_devfreq_events\n\nof_get_child_by_name() returns a node pointer with refcount\nincremented, we should use of_node_put() on it when done.\nThis function only calls of_node_put() in normal path,\nmissing it in error paths.\nAdd missing of_node_put() to avoid refcount leak."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PM/devfreq: exynos-ppmu: Se corrige la fuga de refcount en of_get_devfreq_events of_get_child_by_name() devuelve un puntero de nodo con refcount incrementado, deber\u00edamos usar of_node_put() en \u00e9l cuando haya terminado. Esta funci\u00f3n solo llama a of_node_put() en la ruta normal, y no la llama en las rutas de error. Agregue la falta de of_node_put() para evitar la fuga de refcount."
    }
  ],
  "id": "CVE-2022-49668",
  "lastModified": "2026-06-17T05:18:48.063",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-49668",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-10-01T19:33:24.960757Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-02-26T07:01:41.780",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/01121e39ef537289926ae6f5374dce92c796d863"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/194781229d4cbc804b8ded13156eb8addce87d6c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/bdecd912e99acfd61507f1720d3f4eed1b3418d8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e65027fdebbacd40595e96ef7b5d2418f71bddf2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f44b799603a9b5d2e375b0b2d54dd0b791eddfc2"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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