Linux Kernel up to 5.10.109/5.15.32/5.16.18/5.17.1 of_parse_phandle reference count

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 5.10.109/5.15.32/5.16.18/5.17.1. This impacts the function of_parse_phandle. This manipulation causes reference count. This vulnerability is tracked as CVE-2022-49188. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 5.10.109/5.15.32/5.16.18/5.17.1 and classified as critical. Affected by this vulnerability is the function of_parse_phandle. The manipulation with an unknown input leads to a reference count vulnerability. The CWE definition for the vulnerability is CWE-911. The product uses a reference count to manage a resource, but it does not update or incorrectly updates the reference count. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: remoteproc: qcom_q6v5_mss: Fix some leaks in q6v5_alloc_memory_region The device_node pointer is returned by of_parse_phandle() or of_get_child_by_name() with refcount incremented. We should use of_node_put() on it when done. This function only call of_node_put(node) when of_address_to_resource succeeds, missing error cases.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2022-49188 since 02/26/2025. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 237099 (SUSE SLES12 Security Update : kernel (SUSE-SU-2025:01600-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.110, 5.15.33, 5.16.19 or 5.17.2 eliminates this vulnerability. Applying the patch f7210ca29a783c94478da02368731e4c9cf7cdb7/bd4771ba2cf9e18473a42b5b70175e50d67a64bb/a7d988735e757e111f9722de7cf1b40a84a48b1f/b9df3007b3cda4936cc50f5a7d2d30505a652828/07a5dcc4bed9d7cae54adf5aa10ff9f037a3204b 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 (237099). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.10.109
• 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
• 5.16.0
• 5.16.1
• 5.16.2
• 5.16.3
• 5.16.4
• 5.16.5
• 5.16.6
• 5.16.7
• 5.16.8
• 5.16.9
• 5.16.10
• 5.16.11
• 5.16.12
• 5.16.13
• 5.16.14
• 5.16.15
• 5.16.16
• 5.16.17
• 5.16.18
• 5.17.0
• 5.17.1

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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