{
  "cveId": "CVE-2026-98282",
  "url": "https://patchblox.com/security/cve/CVE-2026-98282",
  "summary": "CVE-2026-98282 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-98282, released October 6, 2026. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "powerpc/iommu: Fix the overflow validation in iommu_tce_check_ioba",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  powerpc/iommu: Fix the overflow validation in iommu_tce_check_ioba  The commit b1af23d836f8 (\u0022KVM: PPC: iommu: Unify TCE checking\u0022) unified IOBA parameter checking across KVM and VFIO into iommu_tce_check_ioba(). While doing so, the passed in argument npages is ignored and constant value \u00271\u0027 is used leaving out a possible overflow as the callers can legitimately be using npages \u003E 1 for H_STUFF_TCE or H_PUT_TCE_INDIRECT cases.  Fix this by accounting for \u0027npages\u0027, checking for arithmetic overflow, and verifying that the entire requested range (ioba - offset \u002B npages) does not exceed the table capacity \u0027size\u0027.",
  "published": "2026-10-06T09:18:18Z",
  "severity": "Critical",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "epss": 0.00129,
  "epssPercentile": 0.02593,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98282",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.190-1",
      "fix": "DEBIAN-CVE-2026-98282",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98282",
      "released": "2026-10-06T21:56:27Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.113-1",
      "fix": "DEBIAN-CVE-2026-98282",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98282",
      "released": "2026-10-06T21:56:27Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.8-1",
      "fix": "DEBIAN-CVE-2026-98282",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98282",
      "released": "2026-10-06T21:56:27Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.113-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-98282",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98282",
      "released": "2026-10-06T21:56:27Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}