{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b12b3b04f6ba072ca5a618a75e546c996be94bd1"
            },
            {
              "fixed": "cc53eb5c6515e3221314624a22c9da9c80a67f63"
            },
            {
              "fixed": "49d9d295d69d07e850cae35933ba8519e2915f26"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.0.0"
            },
            {
              "fixed": "7.2.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98470.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Don't WARN on an unknown VM ioctl in protected mode\n\nkvm_pkvm_ioctl_allowed() WARNs when kvm_get_cap_for_kvm_ioctl() doesn't\nfind the ioctl number in vm_ioctl_caps[], and kvm_arch_vm_ioctl() calls\nit for every number the generic code doesn't handle, so\nioctl(vm_fd, 0xdeadbeef) from userspace taints a pKVM host and panics it\nunder panic_on_warn. The lookup is fed userspace input: return false,\nand userspace gets the -EINVAL kvm_arch_vm_ioctl() returns for that\nnumber on a host without pKVM.",
  "id": "CVE-2026-98470",
  "modified": "2026-10-20T02:30:53.914914781Z",
  "published": "2026-10-18T15:15:22.878Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/49d9d295d69d07e850cae35933ba8519e2915f26"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cc53eb5c6515e3221314624a22c9da9c80a67f63"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98470.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98470"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "KVM: arm64: Don't WARN on an unknown VM ioctl in protected mode"
}