Linux Kernel up to 5.17.1 of_node_put reference count

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.17.1 and classified as critical. The affected element is the function of_node_put. Executing a manipulation can lead to reference count. This vulnerability is registered as CVE-2022-49185. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 5.17.1 and classified as critical. This vulnerability affects the function of_node_put. 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: pinctrl: nomadik: Add missing of_node_put() in nmk_pinctrl_probe This node pointer is returned by of_parse_phandle() with refcount incremented in this function. Calling of_node_put() to avoid the refcount leak.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2022-49185 since 02/26/2025. Technical details are known, but there is no available exploit.

Upgrading to version 4.9.311, 4.14.276, 4.19.238, 5.4.189, 5.10.110, 5.15.33, 5.16.19 or 5.17.2 eliminates this vulnerability. Applying the patch 59250d547542f1c7765a78dc97ddfe5e6b0d2ab0/0356d4b64a03d23daf99a2a29d7d7d91d6ec2ea8/0067ba448f1c29ca06e5aee00d8506889ed1f9d0/bc1e29a35147c1ba6ea2b06a16cb0028f7c852d2/669b05ff43bd7ed684379c6e2006a6dad5127b71/c52703355766c347f270df222a744e0c491a02f2/9511c6018cd772668def8b034bc67269847e591a/62580a40c9bef3d8a90629c64dda381344b35ffd/c09ac191b1f97cfa06f394dbfd7a5db07986cefc 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

• 4.9.310
• 4.14.275
• 4.19.237
• 5.4.188
• 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

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