nvd-json-data-feeds/CVE-2024/CVE-2024-270xx/CVE-2024-27079.json

{
  "id": "CVE-2024-27079",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-05-01T13:15:51.443",
  "lastModified": "2025-03-05T15:16:58.530",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Fix NULL domain on device release\n\nIn the kdump kernel, the IOMMU operates in deferred_attach mode. In this\nmode, info->domain may not yet be assigned by the time the release_device\nfunction is called. It leads to the following crash in the crash kernel:\n\n    BUG: kernel NULL pointer dereference, address: 000000000000003c\n    ...\n    RIP: 0010:do_raw_spin_lock+0xa/0xa0\n    ...\n    _raw_spin_lock_irqsave+0x1b/0x30\n    intel_iommu_release_device+0x96/0x170\n    iommu_deinit_device+0x39/0xf0\n    __iommu_group_remove_device+0xa0/0xd0\n    iommu_bus_notifier+0x55/0xb0\n    notifier_call_chain+0x5a/0xd0\n    blocking_notifier_call_chain+0x41/0x60\n    bus_notify+0x34/0x50\n    device_del+0x269/0x3d0\n    pci_remove_bus_device+0x77/0x100\n    p2sb_bar+0xae/0x1d0\n    ...\n    i801_probe+0x423/0x740\n\nUse the release_domain mechanism to fix it. The scalable mode context\nentry which is not part of release domain should be cleared in\nrelease_device()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: iommu/vt-d: corrige el dominio NULL al lanzar el dispositivo. En el kernel kdump, IOMMU opera en modo deferred_attach. En este modo, es posible que info->dominio a\u00fan no est\u00e9 asignado cuando se llama a la funci\u00f3n release_device. Conduce al siguiente bloqueo en el kernel bloqueado: ERROR: desreferencia del puntero NULL del kernel, direcci\u00f3n: 000000000000003c ... RIP: 0010:do_raw_spin_lock+0xa/0xa0 ... _raw_spin_lock_irqsave+0x1b/0x30 intel_iommu_release_device+0x96/0x170 +0x39/ 0xf0 __iommu_group_remove_device+0xa0/0xd0 iommu_bus_notifier+0x55/0xb0 notifier_call_chain+0x5a/0xd0 blocking_notifier_call_chain+0x41/0x60 bus_notify+0x34/0x50 device_del+0x269/0x3d0 vice+0x77/0x100 p2sb_bar+0xae/0x1d0 ... i801_probe+0x423/0x740 Uso el mecanismo release_domain para solucionarlo. La entrada de contexto del modo escalable que no forma parte del dominio de lanzamiento debe borrarse en release_device()."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "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
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "5.18",
              "versionEndExcluding": "6.8.2",
              "matchCriteriaId": "8EE257FD-236E-4180-A5F9-5DAA3C10F6F8"
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  "references": [
    {
      "url": "https://git.kernel.org/stable/c/333fe86968482ca701c609af590003bcea450e8f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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}