In the Linux kernel, the following vulnerability has been resolved: gpio: sifive: Fix refcount leak in sifive_gpio_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/f9fb4776ebbc16dfc512adbdc0fe218acb47c7cc
https://git.kernel.org/stable/c/f4a2ad1002006548e235255c65a4f1d07312be9d
https://git.kernel.org/stable/c/9a402a210798662b04cbe6ca466e916a15efa03a
https://git.kernel.org/stable/c/95da1882ce9372ba20278f87cdb7a34f9812c4b5
https://git.kernel.org/stable/c/694175cd8a1643cde3acb45c9294bca44a8e08e9