Bug 2401467 (CVE-2022-50480)

Summary: CVE-2022-50480 kernel: memory: pl353-smc: Fix refcount leak bug in pl353_smc_probe()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-10-04 16:01:59 UTC 
In the Linux kernel, the following vulnerability has been resolved:

memory: pl353-smc: Fix refcount leak bug in pl353_smc_probe()

The break of for_each_available_child_of_node() needs a
corresponding of_node_put() when the reference 'child' is not
used anymore. Here we do not need to call of_node_put() in
fail path as '!match' means no break.

While the of_platform_device_create() will created a new
reference by 'child' but it has considered the refcounting.
Comment 1 Alexander B 2025-10-06 17:06:14 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100439-CVE-2022-50480-f296@gregkh/T