fkie_cve-2022-48724
Vulnerability from fkie_nvd
Published
2024-06-20 12:15
Modified
2024-11-21 07:33
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: iommu/vt-d: Fix potential memory leak in intel_setup_irq_remapping() After commit e3beca48a45b ("irqdomain/treewide: Keep firmware node unconditionally allocated"). For tear down scenario, fn is only freed after fail to allocate ir_domain, though it also should be freed in case dmar_enable_qi returns error. Besides free fn, irq_domain and ir_msi_domain need to be removed as well if intel_setup_irq_remapping fails to enable queued invalidation. Improve the rewinding path by add out_free_ir_domain and out_free_fwnode lables per Baolu's suggestion.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/336d096b62bdc673e852b6b80d5072d7888ce85dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5c43d46daa0d2928234dd2792ebebc35d29ee2d1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/99e675d473eb8cf2deac1376a0f840222fc1adcfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9d9995b0371e4e8c18d4f955479e5d47efe7b2d4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a0c685ba99961b1dd894b2e470e692a539770f6dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a31cb1f0fb6caf46ffe88c41252b6b7a4ee062d9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b62eceb5f8f08815fe3f945fc55bbf997c344ecdPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/336d096b62bdc673e852b6b80d5072d7888ce85dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5c43d46daa0d2928234dd2792ebebc35d29ee2d1Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/99e675d473eb8cf2deac1376a0f840222fc1adcfPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9d9995b0371e4e8c18d4f955479e5d47efe7b2d4Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a0c685ba99961b1dd894b2e470e692a539770f6dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a31cb1f0fb6caf46ffe88c41252b6b7a4ee062d9Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b62eceb5f8f08815fe3f945fc55bbf997c344ecdPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.17
linux linux_kernel 5.17


To clipboard 

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  "cveTags": [],
  "descriptions": [
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      "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\u0027s 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."
    }
  ],
  "id": "CVE-2022-48724",
  "lastModified": "2024-11-21T07:33:52.053",
  "metrics": {
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          "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"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2024-06-20T12:15:10.900",
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          "value": "CWE-401"
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      "source": "nvd@nist.gov",
      "type": "Primary"
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}


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