In the Linux kernel, the following vulnerability has been resolved: powerpc/secvar: fix refcount leak in format_show() Refcount leak will happen when format_show returns failure in multiple cases. Unified management of of_node_put can fix this problem.
https://git.kernel.org/stable/c/d601fd24e6964967f115f036a840f4f28488f63f
https://git.kernel.org/stable/c/d05e4265d33af60b39606c20c731e3e719bfe3d6
https://git.kernel.org/stable/c/c105ffb6b9744158e37e9f81f0f38861951d1c1f
https://git.kernel.org/stable/c/2a71e3ecd829a82013cf095c55068c61d991e885
https://git.kernel.org/stable/c/02222bf4f0a27f6eba66d1f597cdb5daadd51829