Re: [BUG] overflow in net/ipv4/route.c rt_check_expire()

[Robert Olsson <Robert.Olsson@xxxxxxxxxxx>]

Herbert Xu writes:

 > Incidentally we should change the way the rehashing is triggered.
 > Instead of doing it regularly, we can do it when we notice that a
 > specific hash chain grows beyond a certain size.

 > The idea is that if someone is attacking our hash then they can
 > only do so by lengthening the chains.  If they're not doing that
 > then even if they knew how to attack us we don't really care.


 Well I don't see how we detect the need for rehash just be looking
 at the hash chains. How does the the "lengthening" look like that
 are allowed to trigger a rehash?

 Agree with Dave that we can increase the interval to start with.


                                          --ro