[ofa-general] [PATCH] IB/IPoIB: Don't let a bad muticast address in the join list stop subsequent joins

[Moni Shoua]

Or Gerlitz wrote:
> Jason Gunthorpe wrote:
>>> Is there any way userspace can inject a bogus multicast address?
>>>     
>> Can you do it with netlink? ip maddr add address ... dev ib0    
> aren't the permissions needed for this being the same as for those
> needed to probe into the kernel a module that crashes the system?
> 
> Or.
> 
Generally I think you are right. But what if a non root user has root permissions 
only for the command 'ip'? 

I'd also like to add that the issue is not just a bad intension but a mistake as well (with even more chances of this to happen).