match_user_copy
add_function_hook("copy_from_user", &match_user_copy, INT_PTR(0));
add_function_hook("__copy_from_user", &match_user_copy, INT_PTR(0));
add_function_hook("memcpy_fromiovec", &match_user_copy, INT_PTR(0));
add_function_hook(kstr_funcs[i], &match_user_copy, INT_PTR(2));
add_function_hook("usb_control_msg", &match_user_copy, INT_PTR(6));