Hello, I came across the function: call_usermodehelper This can be used to invoke exec a binary from the kernel space. It ultimately calls: call_usermodehelper_exec_async Which internally does: retval = do_execve <https://elixir.bootlin.com/linux/v4.7/ident/do_execve>( getname_kernel <https://elixir.bootlin.com/linux/v4.7/ident/getname_kernel>( sub_info->path <https://elixir.bootlin.com/linux/v4.7/ident/path>),(const char __user <https://elixir.bootlin.com/linux/v4.7/ident/__user> *const __user <https://elixir.bootlin.com/linux/v4.7/ident/__user> *)sub_info->argv <https://elixir.bootlin.com/linux/v4.7/ident/argv>,(const char __user <https://elixir.bootlin.com/linux/v4.7/ident/__user> *const __user <https://elixir.bootlin.com/linux/v4.7/ident/__user> *)sub_info->envp <https://elixir.bootlin.com/linux/v4.7/ident/envp>); This function works as expected and a new thread is spawned. Now when I try to directly call do_execve within my module by passing the required arguments, I am getting -EFAULT error. This is happening in this function: count(argv, MAX_ARG_STRINGS) What am I missing here? Thank you Hemanth