In the Linux kernel, the following vulnerability has been resolved: tty: serial: Fix refcount leak bug in ucc_uart.c In soc_info(), of_find_node_by_type() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore.
https://git.kernel.org/stable/c/f6ed634eedb1a8a6a8cb110a7695c7abb70ffcbf
https://git.kernel.org/stable/c/ec56f886f3bf0f15f7a3844d4c025e165b8e8de7
https://git.kernel.org/stable/c/d24d7bb2cd947676f9b71fb944d045e09b8b282f
https://git.kernel.org/stable/c/ca3fc1c38e4253bc019881301a28ea60b8b0bca3
https://git.kernel.org/stable/c/8245e7d1d7f75a9255ad1e8146752e5051d528b8
https://git.kernel.org/stable/c/81939c4fbc2d5c754d0f1c1f05149d4b70d751ed
https://git.kernel.org/stable/c/59bc4c19d53bdac61ec952c01c6e864f5f0f8367
https://git.kernel.org/stable/c/17c32546166d8a7d2579c4b57c8b16241f94a66b