CVE-2022-49431 Details
Description
In the Linux kernel, the following vulnerability has been resolved: powerpc/iommu: Add missing of_node_put in iommu_init_early_dart The device_node pointer is returned by of_find_compatible_node with refcount incremented. We should use of_node_put() to avoid the refcount leak.
A refcount leak vulnerability has been identified in the Linux kernel's PowerPC IOMMU implementation. The issue arises because the device_node pointer, obtained from of_find_compatible_node, is returned with an incremented reference count. The missing of_node_put creates a refcount leak, which can lead to memory management issues.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/57b742a5b8945118022973e6416b71351df512fb | kernel.org | Patch |
| https://git.kernel.org/stable/c/7e3f1dfb9e21733d7276bc9ccea4daada163f2ba | kernel.org | Patch |
| https://git.kernel.org/stable/c/8657e8ea23325949091da72453ba84fb73cc2bd9 | kernel.org | Patch |
| https://git.kernel.org/stable/c/cb4f2dc513e99c5d0485661f114e4dda73612d10 | kernel.org | Patch |
| https://git.kernel.org/stable/c/df6d8b689252c0acc0448d4ae3d33f2d6db048ab | kernel.org | Patch |
| https://git.kernel.org/stable/c/dfc308d6f29aa28463deb9a12278a85a382385ca | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | < 5.4.198 >= 5.5, < 5.10.121 >= 5.11, < 5.15.46 >= 5.16, < 5.17.14 >= 5.18, < 5.18.3 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Oct 22, 2025 | Initial Analysis | [email protected] |
| Feb 26, 2025 | New CVE Received | kernel.org |