{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FFF78B38-3E68-45EF-A942-449C644E7C34",
              "versionEndExcluding": "6.11.7",
              "versionStartIncluding": "6.10",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1",
              "vulnerable": true
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              "matchCriteriaId": "925478D0-3E3D-4E6F-ACD5-09F28D5DF82C",
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              "matchCriteriaId": "3C95E234-D335-4B6C-96BF-E2CEBD8654ED",
              "vulnerable": true
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              "criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "E0F717D8-3014-4F84-8086-0124B2111379",
              "vulnerable": true
            },
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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\nsock_map: fix a NULL pointer dereference in sock_map_link_update_prog()\n\nThe following race condition could trigger a NULL pointer dereference:\n\nsock_map_link_detach():\t\tsock_map_link_update_prog():\n   mutex_lock(\u0026sockmap_mutex);\n   ...\n   sockmap_link-\u003emap = NULL;\n   mutex_unlock(\u0026sockmap_mutex);\n   \t\t\t\t   mutex_lock(\u0026sockmap_mutex);\n\t\t\t\t   ...\n\t\t\t\t   sock_map_prog_link_lookup(sockmap_link-\u003emap);\n\t\t\t\t   mutex_unlock(\u0026sockmap_mutex);\n   \u003ccontinue\u003e\n\nFix it by adding a NULL pointer check. In this specific case, it makes\nno sense to update a link which is being released."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sock_map: corrige una desreferencia de puntero NULL en sock_map_link_update_prog() La siguiente condici\u00f3n de ejecuci\u00f3n podr\u00eda desencadenar una desreferencia de puntero NULL: sock_map_link_detach(): sock_map_link_update_prog(): mutex_lock(\u0026amp;sockmap_mutex); ... sockmap_link-\u0026gt;map = NULL; mutex_unlock(\u0026amp;sockmap_mutex); mutex_lock(\u0026amp;sockmap_mutex); ... sock_map_prog_link_lookup(sockmap_link-\u0026gt;map); mutex_unlock(\u0026amp;sockmap_mutex);  Solucione el problema a\u00f1adiendo una comprobaci\u00f3n de puntero NULL. En este caso espec\u00edfico, no tiene sentido actualizar un enlace que se est\u00e1 publicando."
    }
  ],
  "id": "CVE-2024-50260",
  "lastModified": "2024-11-13T18:47:43.830",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-11-09T11:15:11.550",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/740be3b9a6d73336f8c7d540842d0831dc7a808b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/9afe35fdda16e09d5bd3c49a68ba8c680dd678bd"
    }
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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"
    }
  ]
}