{
  "id": "CVE-2022-48724",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-06-20T12:15:10.900",
  "lastModified": "2024-11-21T07:33:52.053",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Fix potential memory leak in intel_setup_irq_remapping()\n\nAfter commit e3beca48a45b (\"irqdomain/treewide: Keep firmware node\nunconditionally allocated\"). For tear down scenario, fn is only freed\nafter fail to allocate ir_domain, though it also should be freed in case\ndmar_enable_qi returns error.\n\nBesides free fn, irq_domain and ir_msi_domain need to be removed as well\nif intel_setup_irq_remapping fails to enable queued invalidation.\n\nImprove the rewinding path by add out_free_ir_domain and out_free_fwnode\nlables per Baolu's suggestion."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iommu/vt-d: soluciona una posible p\u00e9rdida de memoria en intel_setup_irq_remapping() despu\u00e9s del commit e3beca48a45b (\"irqdomain/treewide: mantiene el nodo de firmware asignado incondicionalmente\"). Para el escenario de desmontaje, fn solo se libera despu\u00e9s de que no se puede asignar ir_domain, aunque tambi\u00e9n debe liberarse en caso de que dmar_enable_qi devuelva un error. Adem\u00e1s de free fn, irq_domain e ir_msi_domain tambi\u00e9n deben eliminarse si intel_setup_irq_remapping no logra habilitar la invalidaci\u00f3n en cola. Mejore la ruta de rebobinado agregando las etiquetas out_free_ir_domain y out_free_fwnode seg\u00fan la sugerencia de Baolu."
    }
  ],
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        "type": "Primary",
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          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
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