iommu/amd: Fix pci device refcount leak in ppr_notifier() (Linux Linux)

CVE-2022-50505
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.16 % · percentile 5 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

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.

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected daae2d25a4779b272a66ddd01f5810bcee822b9e < bdb2113dd8f17a3cc84a2b4be4968a849f69ec72 ; affected daae2d25a4779b272a66ddd01f5810bcee822b9e < efd50c65fd1cdef63eb58825f3fe72496443764c ; affected daae2d25a4779b272a66ddd01f5810bcee822b9e < 8581ec1feb895ff596fe3d326d9ba320083290aa ; affected daae2d25a4779b272a66ddd01f5810bcee822b9e < 03f51c72997559e73b327608f0cccfded715c9a0 ; affected daae2d25a4779b272a66ddd01f5810bcee822b9e < 6e501b3fd7a2e1c4372d72bc70717aaca2beb8a5 ; affected daae2d25a4779b272a66ddd01f5810bcee822b9e < 902cc2507091a81643502d8ceb0e2f105e902518
Linux · Linuxaffected 4.14 ; unaffected 0 < 4.14 ; unaffected 4.14.303 ≤ 4.14.* ; unaffected 4.19.270 ≤ 4.19.* ; unaffected 5.4.229 ≤ 5.4.* ; unaffected 5.10.163 ≤ 5.10.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD