CVE-2026-89453
CVE CVE-2026-89453EUVD EUVD-2026-76359Published 2026-09-11T19:43:18.000Z
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 6.18.50; patch: 6.12.109; 6.10; 978d626b8f1a239acc635323d731c77eae54eb61 <af3b69b16383fbc8fe5f61b5b0150d2e41ede71f; patch: 7.2.4; 978d626b8f1a239acc635323d731c77eae54eb61 <d1470e16c1977e6c94fadf6048deafaa4d150fec; 978d626b8f1a239acc635323d731c77eae54eb61 <cfc5c1b2caa176dfd40b873a6ff07b11da34cc3e; patch: 0; 978d626b8f1a239acc635323d731c77eae54eb61 <1de4443f85e4405af00153cdf8ba73ff12a65036; patch: 7.3-rc1
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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