CVE-2022-50520
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-07

Last updated on: 2026-03-17

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: drm/radeon: Fix PCI device refcount leak in radeon_atrm_get_bios() As comment of pci_get_class() says, it returns a pci_device with its refcount increased and decreased the refcount for the input parameter @from if it is not NULL. If we break the loop in radeon_atrm_get_bios() with 'pdev' not NULL, we need to call pci_dev_put() to decrease the refcount. Add the missing pci_dev_put() to avoid refcount leak.
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Meta Information
Published
2025-10-07
Last Modified
2026-03-17
Generated
2026-06-16
AI Q&A
2025-10-07
EPSS Evaluated
2026-06-15
NVD
CVE-2022-50520
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
linux linux_kernel 3.6
linux linux_kernel From 5.15.160 (inc) to 5.16 (inc)
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Exploitability
CWE
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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 Radeon DRM driver, specifically in the function radeon_atrm_get_bios(). The issue occurs because the function fails to call pci_dev_put() to decrease the reference count of a PCI device when breaking a loop with a non-NULL device pointer, leading to a resource leak.

Impact Analysis

The impact of this vulnerability is a resource leak in the kernel due to unreleased PCI device references. Over time, this can lead to increased memory usage and potentially degrade system stability or performance.

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