In the Linux kernel, the following vulnerability has been resolved: irqchip: Fix refcount leak in platform_irqchip_probe of_irq_find_parent() returns a node pointer with refcount incremented, We should use of_node_put() on it when not needed anymore. Add missing of_node_put() to avoid refcount leak.
https://git.kernel.org/stable/c/ea54b608d85b7536f92238f3259730fa06cb5d21
https://git.kernel.org/stable/c/c32fb16331f612e66a7fa8930164e0dc15725b72
https://git.kernel.org/stable/c/b00baffcc2561374f8fe8af873d00531f19864eb
https://git.kernel.org/stable/c/6caa5a2b78f5f53c433d3a3781e53325da22f0ac
https://git.kernel.org/stable/c/4401b485855700f296cae4d0db36a52948bff4fa