{
  "id": "CVE-2024-50260",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-11-09T11:15:11.550",
  "lastModified": "2024-11-13T18:47:43.830",
  "vulnStatus": "Analyzed",
  "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(&sockmap_mutex);\n   ...\n   sockmap_link->map = NULL;\n   mutex_unlock(&sockmap_mutex);\n   \t\t\t\t   mutex_lock(&sockmap_mutex);\n\t\t\t\t   ...\n\t\t\t\t   sock_map_prog_link_lookup(sockmap_link->map);\n\t\t\t\t   mutex_unlock(&sockmap_mutex);\n   <continue>\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(&amp;sockmap_mutex); ... sockmap_link-&gt;map = NULL; mutex_unlock(&amp;sockmap_mutex); mutex_lock(&amp;sockmap_mutex); ... sock_map_prog_link_lookup(sockmap_link-&gt;map); mutex_unlock(&amp;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."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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  "references": [
    {
      "url": "https://git.kernel.org/stable/c/740be3b9a6d73336f8c7d540842d0831dc7a808b",
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}