{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  iommu/amd: Put PCI device after handling PPR faults  iommu_call_iopf_notifier() looks up the requester with pci_get_domain_bus_and_slot(), which returns a PCI device with its reference count incremented.  Neither the successful iommu_report_device_fault() path nor the abort path drops that reference, so every handled PPR request leaks a PCI device reference.  This is the same ownership rule that was fixed for the old iommu_v2 ppr_notifier() path by commit 6cf0981c2233 (\"iommu/amd: Fix pci device refcount leak in ppr_notifier()\"), but iommu_call_iopf_notifier() was added later as a separate PPR/IOPF notifier path.  Drop the PCI device reference after handling the PPR entry.",
  "id": "DEBIAN-CVE-2026-89453",
  "modified": "2026-09-12T08:47:20.981208798Z",
  "published": "2026-09-11T20:19:25.967Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-89453"
    }
  ],
  "upstream": [
    "CVE-2026-89453"
  ]
}