In the Linux kernel, the following vulnerability has been resolved:

irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains

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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-53191
• https://git.kernel.org/stable/c/071d068b89e95d1b078aa6bbcb9d0961b77d6aa1
• https://git.kernel.org/stable/c/5fbf2cc39b62a4afe44f3d42ee3dcf8f012c1926
• https://git.kernel.org/stable/c/65e30bd1310d90b794c377bf405394157854aa30
• https://git.kernel.org/stable/c/9e79ac4f70fd51243e1c6108d4b0baf16cfde99c
• https://git.kernel.org/stable/c/c9aaf4efe1f02b2fef21a69fb3652f5ad12a5710
• https://git.kernel.org/stable/c/d6c66c46889752fa4962c6388516f7ab66a8d6a1
• https://git.kernel.org/stable/c/eef04516f0c317ce80502c1d6b0d06235a87cd8f
• https://git.kernel.org/stable/c/eef09f786df4b34b97557929287c4e5a83bbf09b