Bug 2347918 (CVE-2022-49351)

Summary: CVE-2022-49351 kernel: net: altera: Fix refcount leak in altera_tse_mdio_create
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-02-26 03:11:18 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: altera: Fix refcount leak in altera_tse_mdio_create

Every iteration of for_each_child_of_node() decrements
the reference count of the previous node.
When break from a for_each_child_of_node() loop,
we need to explicitly call of_node_put() on the child node when
not need anymore.
Add missing of_node_put() to avoid refcount leak.
Comment 1 Avinash Hanwate 2025-02-26 12:07:27 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022642-CVE-2022-49351-b85d@gregkh/T
Comment 2 Avinash Hanwate 2025-02-26 16:24:42 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022642-CVE-2022-49351-b85d@gregkh/T