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

Summaryinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 5.10.109/5.15.32/5.16.18/5.17.1. The impacted element is the function of_find_compatible_node. Executing a manipulation can lead to reference count. This vulnerability is tracked as CVE-2022-49211. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.10.109/5.15.32/5.16.18/5.17.1. It has been declared as critical. This vulnerability affects the function of_find_compatible_node. 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. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: mips: cdmm: Fix refcount leak in mips_cdmm_phys_base The of_find_compatible_node() function returns a node pointer with refcount incremented, We should use of_node_put() on it when done Add the missing of_node_put() to release the refcount.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2022-49211 since 02/26/2025. Technical details are known, but there is no available exploit.

Upgrading to version 5.10.110, 5.15.33, 5.16.19 or 5.17.2 eliminates this vulnerability. Applying the patch ef1728e3cb9e43f38ed10cde705a7ba2b4ad2d35/69155dc2e04777aa94207a73a8b10f12b8428a68/4680c2ac9aabda82acd23ebbd1f900fb6a889cd3/721ab4be20d4448dd04c2cc8ed99cd4f3e45f765/4528668ca331f7ce5999b7746657b46db5b3b785 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

• 5.10.109
• 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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