nvd-json-data-feeds/CVE-2024/CVE-2024-567xx/CVE-2024-56760.json

{
  "id": "CVE-2024-56760",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-01-06T17:15:41.173",
  "lastModified": "2025-01-07T23:06:22.637",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI/MSI: Handle lack of irqdomain gracefully\n\nAlexandre observed a warning emitted from pci_msi_setup_msi_irqs() on a\nRISCV platform which does not provide PCI/MSI support:\n\n WARNING: CPU: 1 PID: 1 at drivers/pci/msi/msi.h:121 pci_msi_setup_msi_irqs+0x2c/0x32\n __pci_enable_msix_range+0x30c/0x596\n pci_msi_setup_msi_irqs+0x2c/0x32\n pci_alloc_irq_vectors_affinity+0xb8/0xe2\n\nRISCV uses hierarchical interrupt domains and correctly does not implement\nthe legacy fallback. The warning triggers from the legacy fallback stub.\n\nThat warning is bogus as the PCI/MSI layer knows whether a PCI/MSI parent\ndomain is associated with the device or not. There is a check for MSI-X,\nwhich has a legacy assumption. But that legacy fallback assumption is only\nvalid when legacy support is enabled, but otherwise the check should simply\nreturn -ENOTSUPP.\n\nLoongarch tripped over the same problem and blindly enabled legacy support\nwithout implementing the legacy fallbacks. There are weak implementations\nwhich return an error, so the problem was papered over.\n\nCorrect pci_msi_domain_supports() to evaluate the legacy mode and add\nthe missing supported check into the MSI enable path to complete it."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PCI/MSI: gestionar la falta de irqdomain con gracia Alexandre observ\u00f3 una advertencia emitida desde pci_msi_setup_msi_irqs() en una plataforma RISCV que no proporciona compatibilidad con PCI/MSI: ADVERTENCIA: CPU: 1 PID: 1 en drivers/pci/msi/msi.h:121 pci_msi_setup_msi_irqs+0x2c/0x32 __pci_enable_msix_range+0x30c/0x596 pci_msi_setup_msi_irqs+0x2c/0x32 pci_alloc_irq_vectors_affinity+0xb8/0xe2 RISCV utiliza dominios de interrupci\u00f3n jer\u00e1rquicos y no implementa correctamente el respaldo heredado. La advertencia se activa desde el stub de respaldo heredado. Esa advertencia es falsa, ya que la capa PCI/MSI sabe si un dominio principal PCI/MSI est\u00e1 asociado con el dispositivo o no. Hay una comprobaci\u00f3n para MSI-X, que tiene una suposici\u00f3n de legado. Pero esa suposici\u00f3n de respaldo heredado solo es v\u00e1lida cuando est\u00e1 habilitada la compatibilidad heredada, pero de lo contrario, la comprobaci\u00f3n simplemente deber\u00eda devolver -ENOTSUPP. Loongarch tropez\u00f3 con el mismo problema y habilit\u00f3 ciegamente la compatibilidad heredada sin implementar los respaldos heredados. Hay implementaciones d\u00e9biles que devuelven un error, por lo que el problema se disimul\u00f3. Corrija pci_msi_domain_supports() para evaluar el modo heredado y agregue la comprobaci\u00f3n de compatibilidad faltante en la ruta de habilitaci\u00f3n de MSI para completarla."
    }
  ],
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "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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  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
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