Simon Horman <horms@xxxxxxxxxxxx> writes: > On Mon, Sep 21, 2015 at 01:01:39PM -0500, Eric W. Biederman wrote: >> Instead store ipvs in extra2 so that proc_do_defense_mode can easily >> find the ipvs that it's value is associated with. >> >> Signed-off-by: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx> > > I am wondering if this fix should be included in v4.3 and stable. > Can the problem occur in practice? I believe a lookup in one network namespace followed by write in another network namespace would do it. So I think it would take so pretty deliberate and more or less peculiar actions to make it happen. I don't know how important the update_defense_level call is or how bad it is if it does not run in a network namespace . Eric -- 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