In the Linux kernel, the following vulnerability has been resolved: RDMA/erdma: Fix refcount leak in erdma_mmap rdma_user_mmap_entry_get() take reference, we should release it when not need anymore, add the missing rdma_user_mmap_entry_put() in the error path to fix it.
https://git.kernel.org/stable/c/ee84146c05ad2316b9a7222d0ec4413e0bf30eeb
https://git.kernel.org/stable/c/8372207b009d6abdd60bb05624640bd86386599f
https://git.kernel.org/stable/c/410f0f46ffca4d0102470c1e0c747ecfece4204c