What’s Vulnerable › Vulnerabilities

CVE-2022-49431: powerpc/iommu: Add missing of_node_put in iommu_init_early_dart

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-06-17

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.

Affected products

• Linux kernel: before 5.4.198; from 5.5 before 5.10.121; from 5.11 before 5.15.46; from 5.16 before 5.17.14; from 5.18 before 5.18.3 — fixed in 5.10.121, 5.15.46, 5.17.14, 5.18.3, 5.4.198

How to fix

Upgrade to a fixed version: Linux kernel 5.10.121, 5.15.46, 5.17.14, 5.18.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/57b742a5b8945118022973e6416b71351df512fb
• https://git.kernel.org/stable/c/7e3f1dfb9e21733d7276bc9ccea4daada163f2ba
• https://git.kernel.org/stable/c/8657e8ea23325949091da72453ba84fb73cc2bd9
• https://git.kernel.org/stable/c/cb4f2dc513e99c5d0485661f114e4dda73612d10
• https://git.kernel.org/stable/c/df6d8b689252c0acc0448d4ae3d33f2d6db048ab
• https://git.kernel.org/stable/c/dfc308d6f29aa28463deb9a12278a85a382385ca

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