Bug 2373534 (CVE-2022-50121)

Summary: CVE-2022-50121 kernel: remoteproc: k3-r5: Fix refcount leak in k3_r5_cluster_of_init
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: low    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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OS: Linux   
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Description OSIDB Bzimport 2025-06-18 12:07:14 UTC 
In the Linux kernel, the following vulnerability has been resolved:

remoteproc: k3-r5: Fix refcount leak in k3_r5_cluster_of_init

Every iteration of for_each_available_child_of_node() decrements
the reference count of the previous node.
When breaking early from a for_each_available_child_of_node() loop,
we need to explicitly call of_node_put() on the child node.
Add missing of_node_put() to avoid refcount leak.
Comment 1 Avinash Hanwate 2025-06-19 16:29:53 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061811-CVE-2022-50121-7e33@gregkh/T