fkie_cve-2023-53071
Vulnerability from fkie_nvd
Published
2025-05-02 16:15
Modified
2025-11-12 20:50
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: wifi: mt76: do not run mt76_unregister_device() on unregistered hw Trying to probe a mt7921e pci card without firmware results in a successful probe where ieee80211_register_hw hasn't been called. When removing the driver, ieee802111_unregister_hw is called unconditionally leading to a kernel NULL pointer dereference. Fix the issue running mt76_unregister_device routine just for registered hw.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2d34f27714c97a9786a30b3bb54944d6d8ed612fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/41130c32f3a18fcc930316da17f3a5f3bc326aa1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dffe86df26aee01a5fc56a175b7a7f157961e370Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.3
linux linux_kernel 6.3
linux linux_kernel 6.3


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F61A7CD6-359A-4A6B-8E7A-D0876BDC43AF",
              "versionEndExcluding": "6.1.113",
              "versionStartIncluding": "5.18",
              "vulnerable": true
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              "versionEndExcluding": "6.2.9",
              "versionStartIncluding": "6.2",
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            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:*",
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          "negate": false,
          "operator": "OR"
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      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: do not run mt76_unregister_device() on unregistered hw\n\nTrying to probe a mt7921e pci card without firmware results in a\nsuccessful probe where ieee80211_register_hw hasn\u0027t been called. When\nremoving the driver, ieee802111_unregister_hw is called unconditionally\nleading to a kernel NULL pointer dereference.\nFix the issue running mt76_unregister_device routine just for registered\nhw."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: mt76: no ejecutar mt76_unregister_device() en hardware no registrado. Al intentar sondear una tarjeta PCI mt7921e sin firmware, se obtiene un sondeo exitoso donde no se ha llamado a ieee80211_register_hw. Al desinstalar el controlador, se llama a ieee802111_unregister_hw incondicionalmente, lo que provoca una desreferencia de puntero nulo en el kernel. Se solucion\u00f3 el problema al ejecutar la rutina mt76_unregister_device solo para hardware registrado."
    }
  ],
  "id": "CVE-2023-53071",
  "lastModified": "2025-11-12T20:50:48.627",
  "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"
      }
    ]
  },
  "published": "2025-05-02T16:15:26.140",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/2d34f27714c97a9786a30b3bb54944d6d8ed612f"
    },
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    }
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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