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CVE-2022-50663
net: stmmac: fix possible memory leak in stmmac_dvr_probe()
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.

INFO

Published Date :

Dec. 9, 2025, 4:17 p.m.

Last Modified :

Dec. 9, 2025, 6:37 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2022-50663 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
Free allocated memory on workqueue creation failure to prevent leaks.
  • Apply the kernel patch for net: stmmac.
  • Ensure bitmap_free() is called on failure.
  • Verify workqueue initialization error handling.
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-2022-50663.

URL Resource
https://git.kernel.org/stable/c/446757787baf99b7db15cb347783c45a37bfe21f
https://git.kernel.org/stable/c/96e50897029f65222ef76cfe9bc802321fcea33b
https://git.kernel.org/stable/c/a137f3f27f9290933fe7e40e6dc8a445781c31a2
https://git.kernel.org/stable/c/b59253e32c203a20bce15dca80890b7d268bacd7
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-50663 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-2022-50663 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-2022-50663 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-2022-50663 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

    Dec. 09, 2025

    Action Type Old Value New Value
    Added 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.
    Added Reference https://git.kernel.org/stable/c/446757787baf99b7db15cb347783c45a37bfe21f
    Added Reference https://git.kernel.org/stable/c/96e50897029f65222ef76cfe9bc802321fcea33b
    Added Reference https://git.kernel.org/stable/c/a137f3f27f9290933fe7e40e6dc8a445781c31a2
    Added Reference https://git.kernel.org/stable/c/b59253e32c203a20bce15dca80890b7d268bacd7
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.