Bug 2348192 (CVE-2022-49431)

Summary: CVE-2022-49431 kernel: powerpc/iommu: Add missing of_node_put in iommu_init_early_dart
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-02-26 03:20:49 UTC 
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.
Comment 1 Avinash Hanwate 2025-02-26 19:58:30 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022656-CVE-2022-49431-bca9@gregkh/T