CVE-2022-50810
Unknown Unknown - Not Provided
Reference Count Leak in Linux rapidio mport_cdev_open Component

Publication date: 2025-12-30

Last updated on: 2025-12-30

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: rapidio: devices: fix missing put_device in mport_cdev_open When kfifo_alloc fails, the refcount of chdev->dev is left incremental. We should use put_device(&chdev->dev) to decrease the ref count of chdev->dev to avoid refcount leak.
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Meta Information
Published
2025-12-30
Last Modified
2025-12-30
Generated
2026-06-16
AI Q&A
2025-12-30
EPSS Evaluated
2026-06-15
NVD
CVE-2022-50810
EUVD
EUVD-2022-55888
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux kernel *
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is a reference count leak in the Linux kernel's rapidio devices. Specifically, when the function kfifo_alloc fails, the reference count of chdev->dev is not properly decremented because put_device(&chdev->dev) is missing. This causes the reference count to remain incremented, leading to a resource leak.

Impact Analysis

The impact of this vulnerability is a resource leak in the Linux kernel, which can lead to increased memory usage or resource exhaustion over time. This may degrade system performance or stability, especially on systems that frequently trigger this code path.

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