Linux Kernel up to 5.10.120/5.15.45/5.17.13/5.18.2 of_find_node_by_name reference count

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.10.120/5.15.45/5.17.13/5.18.2 and classified as critical. Affected by this issue is the function of_find_node_by_name. Such manipulation leads to reference count. This vulnerability is documented as CVE-2022-49463. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 5.10.120/5.15.45/5.17.13/5.18.2. Affected by this issue is the function of_find_node_by_name. 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. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: thermal/drivers/imx_sc_thermal: Fix refcount leak in imx_sc_thermal_probe of_find_node_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() to avoid refcount leak.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2022-49463 since 02/26/2025. There are known technical details, but no exploit is available.

Upgrading to version 5.10.121, 5.15.46, 5.17.14 or 5.18.3 eliminates this vulnerability. Applying the patch 8bbf522a2c51ef939d0e8835e236bfcd252193af/3ade442ea5d3512a3c67984489ab4d8a6fb3b29f/0ec10303c10833c1bcba7a1bde2f297e494d5464/ec0925b731697db7cab5944a3e55d2d58bb3d075/09700c504d8e63faffd2a2235074e8c5d130cb8f 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.

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Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.10.120
• 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
• 5.17.0
• 5.17.1
• 5.17.2
• 5.17.3
• 5.17.4
• 5.17.5
• 5.17.6
• 5.17.7
• 5.17.8
• 5.17.9
• 5.17.10
• 5.17.11
• 5.17.12
• 5.17.13
• 5.18.0
• 5.18.1
• 5.18.2

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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