Linux Kernel up to 5.18.3 of_find_device_by_node reference count

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.18.3 and classified as critical. Affected by this issue is the function of_find_device_by_node. Executing a manipulation can lead to reference count. This vulnerability is tracked as CVE-2022-49354. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 5.18.3. This vulnerability affects the function of_find_device_by_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: ata: pata_octeon_cf: Fix refcount leak in octeon_cf_probe of_find_device_by_node() takes reference, we should use put_device() to release it when not need anymore. Add missing put_device() to avoid refcount leak.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2022-49354 since 02/26/2025. Technical details are known, but there is no available exploit.

Upgrading to version 4.9.318, 4.14.283, 4.19.247, 5.4.198, 5.10.122, 5.15.47, 5.17.15 or 5.18.4 eliminates this vulnerability. Applying the patch 7bd85c5ba1687daf54e3b6907673c3604b1e75cf/a4d3e5f1d7d4f8b5e3834fec0f057a762c55806b/8d8ad067b90f231b8fdb14acee673ca4012f6045/d5a1e7f33c88780b279835d63665d7e38ccb671f/19cb3ece14547cb1ca2021798aaf49a3f82643d1/888312dc297a8a103f6371ef668c7e04f57a7679/c9782e1b21bee4b783a64b2a91e7e71406c21a21/fb2cb409b504bb3a69e65a17f3120328c8e50219/10d6bdf532902be1d8aa5900b3c03c5671612aa2 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
• 5.10.121
• 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
• 5.15.46
• 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
• 5.17.14
• 5.18.0
• 5.18.1
• 5.18.2
• 5.18.3

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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