FKIE_CVE-2023-52520

Vulnerability from fkie_nvd - Published: 2024-03-02 22:15 - Updated: 2026-06-17 06:42
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: platform/x86: think-lmi: Fix reference leak If a duplicate attribute is found using kset_find_obj(), a reference to that attribute is returned which needs to be disposed accordingly using kobject_put(). Move the setting name validation into a separate function to allow for this change without having to duplicate the cleanup code for this setting. As a side note, a very similar bug was fixed in commit 7295a996fdab ("platform/x86: dell-sysman: Fix reference leak"), so it seems that the bug was copied from that driver. Compile-tested only.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/124cf0ea4b82e1444ec8c7420af4e7db5558c293Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/528ab3e605cabf2f9c9bd5944d3bfe15f6e94f81Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/af21c9119a37cecb7ff27ce0c2f3cf721e9d0ec4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c6e3023579de8d33256771ac0745239029e81106Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/124cf0ea4b82e1444ec8c7420af4e7db5558c293Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/528ab3e605cabf2f9c9bd5944d3bfe15f6e94f81Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/af21c9119a37cecb7ff27ce0c2f3cf721e9d0ec4Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c6e3023579de8d33256771ac0745239029e81106Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.6
linux linux_kernel 6.6
linux linux_kernel 6.6
linux linux_kernel 6.6
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/think-lmi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "124cf0ea4b82e1444ec8c7420af4e7db5558c293",
              "status": "affected",
              "version": "1bcad8e510b27ad843315ab2c27ccf459e3acded",
              "versionType": "git"
            },
            {
              "lessThan": "af21c9119a37cecb7ff27ce0c2f3cf721e9d0ec4",
              "status": "affected",
              "version": "1bcad8e510b27ad843315ab2c27ccf459e3acded",
              "versionType": "git"
            },
            {
              "lessThan": "c6e3023579de8d33256771ac0745239029e81106",
              "status": "affected",
              "version": "1bcad8e510b27ad843315ab2c27ccf459e3acded",
              "versionType": "git"
            },
            {
              "lessThan": "528ab3e605cabf2f9c9bd5944d3bfe15f6e94f81",
              "status": "affected",
              "version": "1bcad8e510b27ad843315ab2c27ccf459e3acded",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/think-lmi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.136",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.59",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "27F5DD86-F290-4838-80ED-653ACD48278D",
              "versionEndExcluding": "5.15.136",
              "versionStartIncluding": "5.14",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "96EA633C-1F3E-41C5-A13A-155C55A1F273",
              "versionEndExcluding": "6.1.59",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "AD4E15B4-2591-4A3A-B2A2-7FEAECD5027D",
              "versionEndExcluding": "6.5.8",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "84267A4F-DBC2-444F-B41D-69E15E1BEC97",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "FB440208-241C-4246-9A83-C1715C0DAA6C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "0DC421F1-3D5A-4BEF-BF76-4E468985D20B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "00AB783B-BE05-40E8-9A55-6AA457D95031",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: think-lmi: Fix reference leak\n\nIf a duplicate attribute is found using kset_find_obj(), a reference\nto that attribute is returned which needs to be disposed accordingly\nusing kobject_put(). Move the setting name validation into a separate\nfunction to allow for this change without having to duplicate the\ncleanup code for this setting.\nAs a side note, a very similar bug was fixed in\ncommit 7295a996fdab (\"platform/x86: dell-sysman: Fix reference leak\"),\nso it seems that the bug was copied from that driver.\n\nCompile-tested only."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: plataforma/x86: think-lmi: corregir fuga de referencia Si se encuentra un atributo duplicado usando kset_find_obj(), se devuelve una referencia a ese atributo que debe eliminarse en consecuencia usando kobject_put( ). Mueva la validaci\u00f3n del nombre de la configuraci\u00f3n a una funci\u00f3n separada para permitir este cambio sin tener que duplicar el c\u00f3digo de limpieza para esta configuraci\u00f3n. Como nota al margen, se solucion\u00f3 un error muy similar en el commit 7295a996fdab (\"plataforma/x86: dell-sysman: corregir fuga de referencia\"), por lo que parece que el error se copi\u00f3 de ese controlador. Compilaci\u00f3n probada \u00fanicamente."
    }
  ],
  "id": "CVE-2023-52520",
  "lastModified": "2026-06-17T06:42:55.313",
  "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-2023-52520",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-03-04T19:38:10.734517Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-03-02T22:15:48.080",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/124cf0ea4b82e1444ec8c7420af4e7db5558c293"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/528ab3e605cabf2f9c9bd5944d3bfe15f6e94f81"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/af21c9119a37cecb7ff27ce0c2f3cf721e9d0ec4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c6e3023579de8d33256771ac0745239029e81106"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/124cf0ea4b82e1444ec8c7420af4e7db5558c293"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/528ab3e605cabf2f9c9bd5944d3bfe15f6e94f81"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/af21c9119a37cecb7ff27ce0c2f3cf721e9d0ec4"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c6e3023579de8d33256771ac0745239029e81106"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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