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CVE-2022-50505
iommu/amd: Fix pci device refcount leak in ppr_notifier()
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.

INFO

Published Date :

Oct. 4, 2025, 4:15 p.m.

Last Modified :

Oct. 6, 2025, 2:56 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2022-50505 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Fix a reference count leak in the iommu/amd driver to prevent memory corruption.
  • Apply the patch for the Linux kernel.
  • Update the Linux kernel to the fixed version.
  • Ensure pci_dev_put() is called correctly.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-50505.

URL Resource
https://git.kernel.org/stable/c/03f51c72997559e73b327608f0cccfded715c9a0
https://git.kernel.org/stable/c/6cf0981c2233f97d56938d9d61845383d6eb227c
https://git.kernel.org/stable/c/6e501b3fd7a2e1c4372d72bc70717aaca2beb8a5
https://git.kernel.org/stable/c/8581ec1feb895ff596fe3d326d9ba320083290aa
https://git.kernel.org/stable/c/902cc2507091a81643502d8ceb0e2f105e902518
https://git.kernel.org/stable/c/b0637f4bd426925f5c3a15e8f8e36190fe06bac5
https://git.kernel.org/stable/c/bdb2113dd8f17a3cc84a2b4be4968a849f69ec72
https://git.kernel.org/stable/c/efd50c65fd1cdef63eb58825f3fe72496443764c
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-50505 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-50505 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-50505 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2022-50505 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Oct. 04, 2025

    Action Type Old Value New Value
    Added 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.
    Added Reference https://git.kernel.org/stable/c/03f51c72997559e73b327608f0cccfded715c9a0
    Added Reference https://git.kernel.org/stable/c/6cf0981c2233f97d56938d9d61845383d6eb227c
    Added Reference https://git.kernel.org/stable/c/6e501b3fd7a2e1c4372d72bc70717aaca2beb8a5
    Added Reference https://git.kernel.org/stable/c/8581ec1feb895ff596fe3d326d9ba320083290aa
    Added Reference https://git.kernel.org/stable/c/902cc2507091a81643502d8ceb0e2f105e902518
    Added Reference https://git.kernel.org/stable/c/b0637f4bd426925f5c3a15e8f8e36190fe06bac5
    Added Reference https://git.kernel.org/stable/c/bdb2113dd8f17a3cc84a2b4be4968a849f69ec72
    Added Reference https://git.kernel.org/stable/c/efd50c65fd1cdef63eb58825f3fe72496443764c
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.