KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr()

{
  "id": "ffe5ade8673be65837271f4d7827541d90d5cca9b3e3e8229a651a9b6a826c9d",
  "url": "https://osv.dev/vulnerability/CVE-2024-36953",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr() vgic_v2_parse_attr() is responsible for finding the vCPU that matches the user-provided CPUID, which (of course) may not be valid. If the ID is invalid, kvm_get_vcpu_by_id() returns NULL, which isn't handled gracefully. Similar to the GICv3 uaccess flow, check that kvm_get_vcpu_by_id() actually returns something and fail the ioctl if not.",
    "evidence": "osv:CVE-2024-36953",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.217",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.159",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.91",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.31",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.8.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-36953",
      "aliases": [
        "CVE-2024-36953"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                {
                  "fixed": "4404465a1bee3607ad90a4c5f9e16dfd75b85728"
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                {
                  "fixed": "17db92da8be5dd3bf63c01f4109fe47db64fc66f"
                },
                {
                  "fixed": "3a5b0378ac6776c7c31b18e0f3c1389bd6005e80"
                },
                {
                  "fixed": "8d6a1c8e3de36cb0f5e866f1a582b00939e23104"
                },
                {
                  "fixed": "01981276d64e542c177b243f7c979fee855d5487"
                },
                {
                  "fixed": "6ddb4f372fc63210034b903d96ebbeb3c7195adb"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-36953.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "4.7.0"
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            {
              "type": "ECOSYSTEM",
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                  "introduced": "6.2.0"
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              "type": "ECOSYSTEM",
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                  "introduced": "6.7.0"
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                {
                  "fixed": "6.8.10"
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              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-36953.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:42.142432602Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/01981276d64e542c177b243f7c979fee855d5487",
        "https://git.kernel.org/stable/c/17db92da8be5dd3bf63c01f4109fe47db64fc66f",
        "https://git.kernel.org/stable/c/3a5b0378ac6776c7c31b18e0f3c1389bd6005e80",
        "https://git.kernel.org/stable/c/4404465a1bee3607ad90a4c5f9e16dfd75b85728",
        "https://git.kernel.org/stable/c/6ddb4f372fc63210034b903d96ebbeb3c7195adb",
        "https://git.kernel.org/stable/c/8d6a1c8e3de36cb0f5e866f1a582b00939e23104",
        "https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/36xxx/CVE-2024-36953.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-36953",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/36xxx/CVE-2024-36953.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-36953",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 509775,
  "published_at": "2024-05-30T15:35:48.07+00:00"
}