Linux Kernel up to 5.18.2 icp_opal_init reference count

Summaryinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 5.18.2. The impacted element is the function icp_opal_init. Executing a manipulation can lead to reference count. This vulnerability is registered as CVE-2022-49432. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 5.18.2 and classified as critical. This vulnerability affects the function icp_opal_init. 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: powerpc/xics: fix refcount leak in icp_opal_init() The of_find_compatible_node() function returns a node pointer with refcount incremented, use of_node_put() on it when done.

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2022-49432 since 02/26/2025. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 274839 (RHEL 9 : kernel (RHSA-2025:20518)), which helps to determine the existence of the flaw in a target environment.

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 977dbc81d0f866ef63b93c127b7404f07734b3cc/53f3f7f73e609b934083f896cb7ca2c2cb009b9f/1d5c8cea85fb1680eae8d645b96b92146cb4633c/537a317e5ff45d1f5a0ecaf6a0d7c8043c878cb1/6a61a97106279c2aa16fbbb2a171fd5dde127d23/df802880a7f9cd96b921b00639b00871f18a9a57/2357bd7499a81c70b460e2191852bbfc7b63c354/9a42bc2494fadb453de00ce61042e588563ddc6d/5dd9e27ea4a39f7edd4bf81e9e70208e7ac0b7c9 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.

The vulnerability is also documented in the vulnerability database at Tenable (274839). VulDB is the best source for vulnerability data and more expert information about this specific topic.

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

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion