In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpci: fix of node refcount leak in tcpci_register_port() I got the following report while doing device(mt6370-tcpc) load test with CONFIG_OF_UNITTEST and CONFIG_OF_DYNAMIC enabled: OF: ERROR: memory leak, expected refcount 1 instead of 2, of_node_get()/of_node_put() unbalanced - destroy cset entry: attach overlay node /i2c/pmic@34/tcpc/connector The 'fwnode' set in tcpci_parse_config() which is called in tcpci_register_port(), its node refcount is increased in device_get_named_child_node(). It needs be put while exiting, so call fwnode_handle_put() in the error path of tcpci_register_port() and in tcpci_unregister_port() to avoid leak.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/0384e87e3fec735e47f1c133c796f32ef7a72a9b cve-icon cve-icon
https://git.kernel.org/stable/c/4f257e2eba419ab4cd880c822346450e4e7b2af3 cve-icon cve-icon
https://git.kernel.org/stable/c/5f125507d2270035dfcf83fbff6cff5a143e200c cve-icon cve-icon
https://git.kernel.org/stable/c/ba75be6f0d9d028d20852564206565a4c03e3288 cve-icon cve-icon
https://git.kernel.org/stable/c/d3b6c28a71f111a6c67ddc3238aab95910fd86cf cve-icon cve-icon
https://git.kernel.org/stable/c/e75a324409715bd71348f79a49aa61b69dbeb676 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025091548-CVE-2022-50246-d173@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-50246 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-50246 cve-icon
History

Wed, 17 Sep 2025 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Tue, 16 Sep 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Mon, 15 Sep 2025 14:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpci: fix of node refcount leak in tcpci_register_port() I got the following report while doing device(mt6370-tcpc) load test with CONFIG_OF_UNITTEST and CONFIG_OF_DYNAMIC enabled: OF: ERROR: memory leak, expected refcount 1 instead of 2, of_node_get()/of_node_put() unbalanced - destroy cset entry: attach overlay node /i2c/pmic@34/tcpc/connector The 'fwnode' set in tcpci_parse_config() which is called in tcpci_register_port(), its node refcount is increased in device_get_named_child_node(). It needs be put while exiting, so call fwnode_handle_put() in the error path of tcpci_register_port() and in tcpci_unregister_port() to avoid leak.
Title usb: typec: tcpci: fix of node refcount leak in tcpci_register_port()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-09-15T14:02:04.841Z

Updated: 2025-09-15T14:02:04.841Z

Reserved: 2025-09-15T13:58:00.972Z

Link: CVE-2022-50246

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-09-15T14:15:35.030

Modified: 2025-09-15T15:21:42.937

Link: CVE-2022-50246

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-09-15T00:00:00Z

Links: CVE-2022-50246 - Bugzilla