CVE-2022-50505
MEDIUM severity · CVSS 5.5
5.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/03f51c72997559e73b327608f0cccfded715c9a0 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/03f51c72997559e73b327608f0cccfded715c9a0Patch
- https://git.kernel.org/stable/c/6cf0981c2233f97d56938d9d61845383d6eb227cPatch
- https://git.kernel.org/stable/c/6e501b3fd7a2e1c4372d72bc70717aaca2beb8a5Patch
- https://git.kernel.org/stable/c/8581ec1feb895ff596fe3d326d9ba320083290aaPatch
- https://git.kernel.org/stable/c/902cc2507091a81643502d8ceb0e2f105e902518Patch
- https://git.kernel.org/stable/c/b0637f4bd426925f5c3a15e8f8e36190fe06bac5Patch
- https://git.kernel.org/stable/c/bdb2113dd8f17a3cc84a2b4be4968a849f69ec72Patch
- https://git.kernel.org/stable/c/efd50c65fd1cdef63eb58825f3fe72496443764cPatch