On Tue, Jul 17, 2018 at 5:11 AM <dsahern@xxxxxxxxxx> wrote: > > From: David Ahern <dsahern@xxxxxxxxx> > > Nikita Leshenko reported that neighbor entries in one namespace can > evict neighbor entries in another. The problem is that the neighbor > tables have entries across all namespaces without separate accounting > and with global limits on when to scan for entries to evict. It is nothing new, people including me already noticed this before. > > Resolve by making the neighbor tables for ipv4, ipv6 and decnet per > namespace and making the accounting and threshold limits per namespace. The last discussion about this a long time ago concluded that neigh table entries are controllable by remote, so after moving it to per netns, it would be easier to DOS the host. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
