{
  "cveId": "CVE-2026-98002",
  "url": "https://patchblox.com/security/cve/CVE-2026-98002",
  "summary": "CVE-2026-98002 is fixed in linux on 1 platform by DEBIAN-CVE-2026-98002 (version 7.2.7-1), released October 2, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  iommu/amd: Fix ineffective error check in nested...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  iommu/amd: Fix ineffective error check in nested domain allocation  amd_iommu_pdom_id_alloc() returns an int: a domain ID on success, or the negative errno from ida_alloc_range() when the ID space is exhausted or memory is short.  amd_iommu_alloc_domain_nested() stores that return value in gdom_info-\u003Ehdom_id, which is a u32, and only then tests it:  \tgdom_info-\u003Ehdom_id = amd_iommu_pdom_id_alloc(); \tif (gdom_info-\u003Ehdom_id \u003C= 0) {  The assignment discards the sign, so -ENOSPC becomes 0xffffffe4 and the test never fires.  The nested domain is then set up with a host domain ID that was never allocated, instead of the allocation failing with -ENOSPC.  Keep the value in an int, test it there, and store it only once it is known to be valid, which is what the other amd_iommu_pdom_id_alloc() callers already do.",
  "published": "2026-09-25T11:17:28Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "epss": 0.00108,
  "epssPercentile": 0.01203,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.7-1",
      "fix": "DEBIAN-CVE-2026-98002",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98002",
      "released": "2026-10-02T21:04:56Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}