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medium5.5

CVE-2022-50505

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix pci device refcount leak in ppr_notifier() As comment of pci_get_domain_bus_…

Impact

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix pci device refcount leak in ppr_notifier() As comment of pci_get_domain_bus_and_slot() says, it returns a pci device with refcount increment, when finish using it, the caller must decrement the reference count by calling pci_dev_put(). So call it before returning from ppr_notifier() to avoid refcount leak.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 4.14 before 4.14.303
from 4.15 before 4.19.270
from 4.20 before 5.4.229
from 5.5 before 5.10.163
from 5.11 before 5.15.86
from 5.16 before 6.0.16

References