Linux Kernel up to 6.0.15/6.1.1 wusb3801_probe memory leak

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.0.15/6.1.1. It has been classified as critical. This impacts the function wusb3801_probe. This manipulation causes memory leak. This vulnerability is registered as CVE-2022-50825. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.0.15/6.1.1. It has been declared as critical. Affected by this vulnerability is the function wusb3801_probe. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: usb: typec: wusb3801: fix fwnode refcount leak in wusb3801_probe() I got the following report while doing fault injection test: OF: ERROR: memory leak, expected refcount 1 instead of 4, of_node_get()/of_node_put() unbalanced - destroy cset entry: attach overlay node /i2c/tcpc@60/connector If wusb3801_hw_init() fails, fwnode_handle_put() needs be called to avoid refcount leak.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2022-50825 since 12/30/2025. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 280811 (Linux Distros Unpatched Vulnerability : CVE-2022-50825), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.0.16 or 6.1.2 eliminates this vulnerability. Applying the patch de1e2eb7f102e3073714396414592a39efb66b3e/82d1211f673bbdc822eaf1dbcbf1f2ae06556964/dc18a4c7b3bd447cef2395deeb1f6ac16dfaca0e is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (280811). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 6.0.0
• 6.0.1
• 6.0.2
• 6.0.3
• 6.0.4
• 6.0.5
• 6.0.6
• 6.0.7
• 6.0.8
• 6.0.9
• 6.0.10
• 6.0.11
• 6.0.12
• 6.0.13
• 6.0.14
• 6.0.15
• 6.1.0
• 6.1.1

License

• open-source

Website

• Vendor: https://www.kernel.org/

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