Created attachment 205166 [details] The patch file In function qlnx_rdma_deregister_if, the address of object rdma_if will be printed out. rdma_if is the address of a global variable qlnxr_drv, which is passed from dev/qlnx/qlnxr/qlnxr_os.c A kernel address leakage happens. Fix this by removing the printf statement.