FKIE_CVE-2024-38554

Vulnerability from fkie_nvd - Published: 2024-06-19 14:15 - Updated: 2026-06-17 07:40
Severity
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: ax25: Fix reference count leak issue of net_device There is a reference count leak issue of the object "net_device" in ax25_dev_device_down(). When the ax25 device is shutting down, the ax25_dev_device_down() drops the reference count of net_device one or zero times depending on if we goto unlock_put or not, which will cause memory leak. In order to solve the above issue, decrease the reference count of net_device after dev->ax25_ptr is set to null.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6badPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6badPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ax25/ax25_dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3ec437f9bbae68e9b38115c4c91de995f73f6bad",
              "status": "affected",
              "version": "d01ffb9eee4af165d83b08dd73ebdf9fe94a519b",
              "versionType": "git"
            },
            {
              "lessThan": "965d940fb7414b310a22666503d2af69459c981b",
              "status": "affected",
              "version": "d01ffb9eee4af165d83b08dd73ebdf9fe94a519b",
              "versionType": "git"
            },
            {
              "lessThan": "8bad3a20a27be8d935f2aae08d3c6e743754944a",
              "status": "affected",
              "version": "d01ffb9eee4af165d83b08dd73ebdf9fe94a519b",
              "versionType": "git"
            },
            {
              "lessThan": "eef95df9b752699bddecefa851f64858247246e9",
              "status": "affected",
              "version": "d01ffb9eee4af165d83b08dd73ebdf9fe94a519b",
              "versionType": "git"
            },
            {
              "lessThan": "36e56b1b002bb26440403053f19f9e1a8bc075b2",
              "status": "affected",
              "version": "d01ffb9eee4af165d83b08dd73ebdf9fe94a519b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ef0a2a0565727a48f2e36a2c461f8b1e3a61922d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e2b558fe507a1ed4c43db2b0057fc6e41f20a14c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "418993bbaafb0cd48f904ba68eeda052d624c821",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5ea00fc60676c0eebfa8560ec461209d638bca9d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9af0fd5c4453a44c692be0cbb3724859b75d739b",
              "versionType": "git"
            },
            {
              "lessThan": "4.15",
              "status": "affected",
              "version": "4.14.277",
              "versionType": "semver"
            },
            {
              "lessThan": "4.20",
              "status": "affected",
              "version": "4.19.240",
              "versionType": "semver"
            },
            {
              "lessThan": "5.5",
              "status": "affected",
              "version": "5.4.190",
              "versionType": "semver"
            },
            {
              "lessThan": "5.11",
              "status": "affected",
              "version": "5.10.112",
              "versionType": "semver"
            },
            {
              "lessThan": "5.16",
              "status": "affected",
              "version": "5.15.35",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/ax25/ax25_dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.93",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.8.*",
              "status": "unaffected",
              "version": "6.8.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.9.*",
              "status": "unaffected",
              "version": "6.9.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.10",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "899D7A4F-A23D-4FA2-84B4-4BAA03F98BBC",
              "versionEndExcluding": "6.1.93",
              "versionStartIncluding": "5.17",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FCE796DF-3B50-4DC6-BAE5-95271068FC9E",
              "versionEndExcluding": "6.6.33",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "80550309-67AB-4FD1-AC07-3DED5C4F01B2",
              "versionEndExcluding": "6.8.12",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E07124C1-19E8-4D21-828D-9932A01D3011",
              "versionEndExcluding": "6.9.3",
              "versionStartIncluding": "6.9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nax25: Fix reference count leak issue of net_device\n\nThere is a reference count leak issue of the object \"net_device\" in\nax25_dev_device_down(). When the ax25 device is shutting down, the\nax25_dev_device_down() drops the reference count of net_device one\nor zero times depending on if we goto unlock_put or not, which will\ncause memory leak.\n\nIn order to solve the above issue, decrease the reference count of\nnet_device after dev-\u003eax25_ptr is set to null."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ax25: Solucionar el problema de fuga del recuento de referencias de net_device Hay un problema de fuga del recuento de referencias del objeto \"net_device\" en ax25_dev_device_down(). Cuando el dispositivo ax25 se est\u00e1 apagando, ax25_dev_device_down() elimina el recuento de referencia de net_device una o cero veces dependiendo de si vamos a unlock_put o no, lo que provocar\u00e1 una p\u00e9rdida de memoria. Para resolver el problema anterior, reduzca el recuento de referencias de net_device despu\u00e9s de que dev-\u0026gt;ax25_ptr se establezca en nulo."
    }
  ],
  "id": "CVE-2024-38554",
  "lastModified": "2026-06-17T07:40:32.213",
  "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"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-38554",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-10T17:14:44.470574Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-06-19T14:15:15.627",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6bad"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6bad"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944a"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981b"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9"
    }
  ],
  "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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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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