On 5/19/20 11:02 AM, Roopa Prabhu wrote: > What are the rules here.... does neighbor code only check for NDA_NH_ID > because the strict start type is set to NDA_NH_ID ? >
Lack of checking of unused attributes leads to the kernel silently ignoring userspace data. From top of memory that has a few problems: 1. does the kernel support feature A (lack of probing for a feature), 2. kernel not implementing what the user requested and not telling the user, 3. impacting the ability to start using feature A in that code at some point in the future (it was ignored in the past and garbage was passed in, now suddenly that garbage is acted on).
