FKIE_CVE-2021-47073

Vulnerability from fkie_nvd - Published: 2024-03-01 22:15 - Updated: 2026-06-17 04:16
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: dell-smbios-wmi: Fix oops on rmmod dell_smbios init_dell_smbios_wmi() only registers the dell_smbios_wmi_driver on systems where the Dell WMI interface is supported. While exit_dell_smbios_wmi() unregisters it unconditionally, this leads to the following oops: [ 175.722921] ------------[ cut here ]------------ [ 175.722925] Unexpected driver unregister! [ 175.722939] WARNING: CPU: 1 PID: 3630 at drivers/base/driver.c:194 driver_unregister+0x38/0x40 ... [ 175.723089] Call Trace: [ 175.723094] cleanup_module+0x5/0xedd [dell_smbios] ... [ 175.723148] ---[ end trace 064c34e1ad49509d ]--- Make the unregister happen on the same condition the register happens to fix this.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0cf036a0d325200e6c27b90908e51195bbc557b1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3a53587423d25c87af4b4126a806a0575104b45ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6fa78a6b9a3beb676a010dc489c1257f7e432525Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/75cfc833da4a2111106d4c134e93e0c7f41e35e7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8d746ea7c687bab060a2c05a35c449302406cd52Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0cf036a0d325200e6c27b90908e51195bbc557b1Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3a53587423d25c87af4b4126a806a0575104b45ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6fa78a6b9a3beb676a010dc489c1257f7e432525Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/75cfc833da4a2111106d4c134e93e0c7f41e35e7Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8d746ea7c687bab060a2c05a35c449302406cd52Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.13
linux linux_kernel 5.13
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/dell/dell-smbios-wmi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "75cfc833da4a2111106d4c134e93e0c7f41e35e7",
              "status": "affected",
              "version": "1a258e670434f404a4500b65ba1afea2c2b29bba",
              "versionType": "git"
            },
            {
              "lessThan": "6fa78a6b9a3beb676a010dc489c1257f7e432525",
              "status": "affected",
              "version": "1a258e670434f404a4500b65ba1afea2c2b29bba",
              "versionType": "git"
            },
            {
              "lessThan": "0cf036a0d325200e6c27b90908e51195bbc557b1",
              "status": "affected",
              "version": "1a258e670434f404a4500b65ba1afea2c2b29bba",
              "versionType": "git"
            },
            {
              "lessThan": "8d746ea7c687bab060a2c05a35c449302406cd52",
              "status": "affected",
              "version": "1a258e670434f404a4500b65ba1afea2c2b29bba",
              "versionType": "git"
            },
            {
              "lessThan": "3a53587423d25c87af4b4126a806a0575104b45e",
              "status": "affected",
              "version": "1a258e670434f404a4500b65ba1afea2c2b29bba",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/dell/dell-smbios-wmi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.192",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.122",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.12.*",
              "status": "unaffected",
              "version": "5.12.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D16B80B0-1DAC-4C57-B665-6BE9E231EDDA",
              "versionEndExcluding": "4.19.192",
              "versionStartIncluding": "4.15",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6530C9FA-EEF8-4821-9186-47F7A1FA3C1A",
              "versionEndExcluding": "5.4.122",
              "versionStartIncluding": "4.20",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "69DD053C-277F-4A8C-9606-11A24F806D05",
              "versionEndExcluding": "5.10.40",
              "versionStartIncluding": "5.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E8F2CE30-38B0-4716-B12B-A139B0F9C5C9",
              "versionEndExcluding": "5.12.7",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "96AC23B2-D46A-49D9-8203-8E1BEDCA8532",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios\n\ninit_dell_smbios_wmi() only registers the dell_smbios_wmi_driver on systems\nwhere the Dell WMI interface is supported. While exit_dell_smbios_wmi()\nunregisters it unconditionally, this leads to the following oops:\n\n[  175.722921] ------------[ cut here ]------------\n[  175.722925] Unexpected driver unregister!\n[  175.722939] WARNING: CPU: 1 PID: 3630 at drivers/base/driver.c:194 driver_unregister+0x38/0x40\n...\n[  175.723089] Call Trace:\n[  175.723094]  cleanup_module+0x5/0xedd [dell_smbios]\n...\n[  175.723148] ---[ end trace 064c34e1ad49509d ]---\n\nMake the unregister happen on the same condition the register happens\nto fix this."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: plataforma/x86: dell-smbios-wmi: se corrigi\u00f3 Ups en rmmod dell_smbios init_dell_smbios_wmi() solo registra dell_smbios_wmi_driver en sistemas donde se admite la interfaz Dell WMI. Si bien exit_dell_smbios_wmi() lo cancela del registro incondicionalmente, esto genera lo siguiente: [175.722921] ------------[ cortar aqu\u00ed ]------------ [ 175.722925] Inesperado \u00a1Dar de baja al conductor! [175.722939] ADVERTENCIA: CPU: 1 PID: 3630 en drivers/base/driver.c:194 driver_unregister+0x38/0x40... [175.723089] Seguimiento de llamadas: [175.723094] cleanup_module+0x5/0xedd [dell_smbios]... [ 175.723148] ---[ end trace 064c34e1ad49509d ]--- Haga que la cancelaci\u00f3n del registro se realice en las mismas condiciones que el registro para solucionar este problema."
    }
  ],
  "id": "CVE-2021-47073",
  "lastModified": "2026-06-17T04:16:23.657",
  "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-2021-47073",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-03-05T22:11:59.293322Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-03-01T22:15:47.060",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/0cf036a0d325200e6c27b90908e51195bbc557b1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3a53587423d25c87af4b4126a806a0575104b45e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6fa78a6b9a3beb676a010dc489c1257f7e432525"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/75cfc833da4a2111106d4c134e93e0c7f41e35e7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8d746ea7c687bab060a2c05a35c449302406cd52"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/0cf036a0d325200e6c27b90908e51195bbc557b1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3a53587423d25c87af4b4126a806a0575104b45e"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6fa78a6b9a3beb676a010dc489c1257f7e432525"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/75cfc833da4a2111106d4c134e93e0c7f41e35e7"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8d746ea7c687bab060a2c05a35c449302406cd52"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "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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