Linux Kernel up to 5.18.2 of_node_get reference count

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.18.2. It has been declared as critical. The affected element is the function of_node_get. The manipulation results in reference count. This vulnerability is reported as CVE-2022-49481. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 5.18.2. Affected is the function of_node_get. The manipulation with an unknown input leads to a reference count vulnerability. CWE is classifying the issue as CWE-911. The product uses a reference count to manage a resource, but it does not update or incorrectly updates the reference count. This is going to have an impact on availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: regulator: pfuze100: Fix refcount leak in pfuze_parse_regulators_dt of_node_get() returns a node with refcount incremented. Calling of_node_put() to drop the reference when not needed anymore.

The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2022-49481 since 02/26/2025. There are known technical details, but no exploit is available.

Upgrading to version 4.9.318, 4.14.283, 4.19.247, 5.4.198, 5.10.121, 5.15.46, 5.17.14 or 5.18.3 eliminates this vulnerability. Applying the patch b74c0dd9179d21b7260260e075d597b23970100c/6ca675f4abbc74bc991d154a1ecc8b384dc2aae4/984cfef0675ed7398814e14af2c5323911723e1c/0be5d9da5743b9825a95baec85a67500b2c1d362/9f564e29a51210a49df3d925117777c157a17d6d/56ab0c01027492cd161c64148e1dc892c56887ad/671be14fc31374b1a10a3abd93db6a8480838fc9/49d785baeb91568332197be356d138e5e59c7ddb/afaa7b933ef00a2d3262f4d1252087613fb5c06d 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

• 4.9.317
• 4.14.282
• 4.19.246
• 5.4.197
• 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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Entryinfo

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