title: Restrict access to `/proc/myKernelModuleData` only to an app
body: <p>I write a kernel module and user-space application. The kernel module computes sensitive information and sends it to our user-space application. Is there a way to restrict access to <code>/proc/myKernelModuleData</code> such that only my userspace application can read/write in it and no other application can interfere (read/write)? Is there another way to communicate between the kernel module and my user space application, where my module can authenticate my app before sending data to it?</p>