Linux Kernel up to 5.18.2 of_parse_phandle reference count

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.18.2. It has been classified as critical. Affected by this vulnerability is the function of_parse_phandle. Performing a manipulation results in reference count. This vulnerability is cataloged as CVE-2022-49517. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 5.18.2. This affects the function of_parse_phandle. 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. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: ASoC: mediatek: Fix missing of_node_put in mt2701_wm8960_machine_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.

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2022-49517 since 02/26/2025. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 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 bc2afecaabd2a2c9f17e43b4793a30e3461bfb29/9345122f5fb9f97a206f440f38bb656e53f46912/c71494f5f2b444adfd992a7359a0d2a791642b39/f279c49f17ce10866087ea6c0c57382158974b63/61a85a20e8df5e0a92cfe169c92425c7bae0753b/318afb1442eeef089fe7f8a8297d97c0302ff6f6/94587aa17abf8b26f543d2b29c44abc21bc36836/05654431a18fe24e5e46a375d98904134628a102 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

• 4.14.282
• 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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