CVE-2022-50663
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-09

Last updated on: 2025-12-09

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: net: stmmac: fix possible memory leak in stmmac_dvr_probe() The bitmap_free() should be called to free priv->af_xdp_zc_qps when create_singlethread_workqueue() fails, otherwise there will be a memory leak, so we add the err path error_wq_init to fix it.
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Meta Information
Published
2025-12-09
Last Modified
2025-12-09
Generated
2026-06-16
AI Q&A
2025-12-09
EPSS Evaluated
2026-06-14
NVD
CVE-2022-50663
EUVD
EUVD-2022-55742
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is a memory leak in the Linux kernel's stmmac network driver. Specifically, if the function create_singlethread_workqueue() fails during the driver's probe process, the allocated memory for priv->af_xdp_zc_qps is not freed because bitmap_free() is not called. This leads to a memory leak. The fix involves adding an error handling path to ensure bitmap_free() is called to release the memory properly.

Impact Analysis

The memory leak caused by this vulnerability can lead to increased memory usage over time, potentially degrading system performance or causing resource exhaustion. In systems running the affected Linux kernel with the stmmac driver, this could result in instability or crashes if the leak is significant and persistent.

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