Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
978d626b8f1a239acc635323d731c77eae54eb61 to < 1de4443f85e4405af00153cdf8ba73ff12a65036affected978d626b8f1a239acc635323d731c77eae54eb61 to < cfc5c1b2caa176dfd40b873a6ff07b11da34cc3eaffected978d626b8f1a239acc635323d731c77eae54eb61 to < d1470e16c1977e6c94fadf6048deafaa4d150fecaffected978d626b8f1a239acc635323d731c77eae54eb61 to < af3b69b16383fbc8fe5f61b5b0150d2e41ede71faffected
Linux Linux
Default version status: affected
6.10affected0 to < 6.10unaffected6.12.109 to ≤ 6.12.*unaffected6.18.50 to ≤ 6.18.*unaffected7.2.4 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected