On Thu, 2017-06-08 at 17:59 -0700, Cong Wang wrote: > On Thu, Jun 8, 2017 at 1:33 PM, Eric Dumazet <eric.duma...@gmail.com> wrote: > > I mentioned (in https://lkml.org/lkml/2017/5/31/619 ) that we might need > > to defer freeing after rcu grace period but for some reason decided it > > was not needed. > > This one makes sense, it is the second time I saw the use-after-free > in igmp code, both are because we don't respect the RCU rule to free > an element in the list. > > > > > What about : > > But not sure if all ip_ma_put() callers want ip_mc_clear_src().
That would lead to a memory leak if this was the case ?
