fkie_cve-2021-47091
Vulnerability from fkie_nvd
Published
2024-03-04 18:15
Modified
2025-02-03 13:42
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: mac80211: fix locking in ieee80211_start_ap error path We need to hold the local->mtx to release the channel context, as even encoded by the lockdep_assert_held() there. Fix it.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/87a270625a89fc841f1a7e21aae6176543d8385cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ac61b9c6c0549aaeb98194cf429d93c41bfe5f79Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c1d1ec4db5f7264cfc21993e59e8f2dcecf4b44fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/87a270625a89fc841f1a7e21aae6176543d8385cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ac61b9c6c0549aaeb98194cf429d93c41bfe5f79Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c1d1ec4db5f7264cfc21993e59e8f2dcecf4b44fPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.16
linux linux_kernel 5.16
linux linux_kernel 5.16
linux linux_kernel 5.16
linux linux_kernel 5.16
linux linux_kernel 5.16


To clipboard 

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    {
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              "versionEndExcluding": "5.10.89",
              "versionStartIncluding": "5.10",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmac80211: fix locking in ieee80211_start_ap error path\n\nWe need to hold the local-\u003emtx to release the channel context,\nas even encoded by the lockdep_assert_held() there. Fix it."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: mac80211: corrige el bloqueo en la ruta de error ieee80211_start_ap Necesitamos mantener local-\u0026gt;mtx para liberar el contexto del canal, incluso codificado por lockdep_assert_held() all\u00ed. Arreglalo."
    }
  ],
  "id": "CVE-2021-47091",
  "lastModified": "2025-02-03T13:42:00.400",
  "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"
      }
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  "published": "2024-03-04T18:15:07.670",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-667"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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