Linux Kernel up to 5.19.3 usb usbhs_rza1_hardware_init reference count

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 4.19.255/5.4.210/5.10.137/5.15.62/5.19.3. Affected is the function usbhs_rza1_hardware_init of the component usb. The manipulation leads to reference count. This vulnerability is uniquely identified as CVE-2022-50032. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.19.255/5.4.210/5.10.137/5.15.62/5.19.3. It has been rated as critical. This issue affects the function usbhs_rza1_hardware_init of the component usb. The manipulation with an unknown input leads to a reference count vulnerability. Using CWE to declare the problem leads to CWE-911. The product uses a reference count to manage a resource, but it does not update or incorrectly updates the reference count. Impacted is availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: usb: renesas: Fix refcount leak bug In usbhs_rza1_hardware_init(), of_find_node_by_name() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore.

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2022-50032 since 06/18/2025. The exploitation is known to be difficult. Technical details are known, but no exploit is available.

Upgrading to version 4.19.256, 5.4.211, 5.10.138, 5.15.63 or 5.19.4 eliminates this vulnerability. Applying the patch 36b18b777dece704b7c2e9e7947ca41a9b0fb009/cfa8f707a58d68b2341a9dd0b33cf048f0628b4d/9790a5a4f07f38a5add85ec58c44797d3a7c3677/fbdbd61a36d887e00114321c6758e359e9573a8e/5c4b699193eba51f1bbf462d758d66f545fddd35/9d6d5303c39b8bc182475b22f45504106a07f086 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 CERT Bund (WID-SEC-2025-1350). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• SUSE openSUSE
• Open Source Linux Kernel
• RESF Rocky Linux
• Dell Avamar
• Dell NetWorker
• Dell Secure Connect Gateway
• IBM QRadar SIEM

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.19.255
• 5.4.210
• 5.10.137
• 5.15.0
• 5.15.1
• 5.15.2
• 5.15.3
• 5.15.4
• 5.15.5
• 5.15.6
• 5.15.7
• 5.15.8
• 5.15.9
• 5.15.10
• 5.15.11
• 5.15.12
• 5.15.13
• 5.15.14
• 5.15.15
• 5.15.16
• 5.15.17
• 5.15.18
• 5.15.19
• 5.15.20
• 5.15.21
• 5.15.22
• 5.15.23
• 5.15.24
• 5.15.25
• 5.15.26
• 5.15.27
• 5.15.28
• 5.15.29
• 5.15.30
• 5.15.31
• 5.15.32
• 5.15.33
• 5.15.34
• 5.15.35
• 5.15.36
• 5.15.37
• 5.15.38
• 5.15.39
• 5.15.40
• 5.15.41
• 5.15.42
• 5.15.43
• 5.15.44
• 5.15.45
• 5.15.46
• 5.15.47
• 5.15.48
• 5.15.49
• 5.15.50
• 5.15.51
• 5.15.52
• 5.15.53
• 5.15.54
• 5.15.55
• 5.15.56
• 5.15.57
• 5.15.58
• 5.15.59
• 5.15.60
• 5.15.61
• 5.15.62
• 5.19.0
• 5.19.1
• 5.19.2
• 5.19.3

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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