Linux Kernel up to 5.17.1 of_node_put reference count

Summaryinfo

A vulnerability identified as critical has been detected in Linux Kernel up to 5.17.1. The affected element is the function of_node_put. This manipulation causes reference count. This vulnerability appears as CVE-2022-49243. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 5.17.1. Affected by this vulnerability is 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. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: ASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio_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 known as CVE-2022-49243 since 02/26/2025. Technical details of the vulnerability 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 81f266396237cea09a8c6322a6a78535f06ed345/f8b7b9a0594715ecfbe6f18db2328d992242654a/b0c56a0071116a37c24df998166c22a7e4684626/0325193cf40dc3a6e27d55a5b98680936deebcd0/662ee5ac6b451aa5a27b8eebd397f2f5c7f42cec/a0bc36b247dcf4d21bf820bfc4bcbaf7f6cf19b5/32e6ceb05f36432811753852c674a301f944a24b/4793a02deb31b71b3984abc67bf1011a03c13b18/f590797fa3c1bccdd19e55441592a23b46aef449 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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