CVE-2022-50760
Unknown Unknown - Not Provided

Reference Count Leak in Linux amdgpu PCI Device Handling

Publication date: 2025-12-24

Last updated on: 2025-12-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix PCI device refcount leak in amdgpu_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 amdgpu_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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2025-12-24
Last Modified
2025-12-24
Generated
2026-07-06
AI Q&A
2025-12-24
EPSS Evaluated
2026-07-05
NVD
CVE-2022-50760
EUVD
EUVD-2022-55801

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is a reference count leak in the Linux kernel's amdgpu driver, specifically in the function amdgpu_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 refcount leak.

Impact Analysis

The reference count leak can lead to resource management issues in the kernel, potentially causing memory leaks or instability in the system due to unreleased PCI device references.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2022-50760. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart