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Date: Mon, 18 Mar 2019 17:59:48 -0700 (PDT) From: David Miller <davem@...emloft.net> To: willemdebruijn.kernel@...il.com Cc: maxime.chevallier@...tlin.com, linux-kernel@...r.kernel.org, netdev@...r.kernel.org, willemb@...gle.com, edumazet@...gle.com, antoine.tenart@...tlin.com, thomas.petazzoni@...tlin.com Subject: Re: [PATCH net] packets: Always register packet sk in the same order From: David Miller <davem@...emloft.net> Date: Sat, 16 Mar 2019 18:21:19 -0700 (PDT) > From: Willem de Bruijn <willemdebruijn.kernel@...il.com> > Date: Sat, 16 Mar 2019 14:09:33 -0400 > >> Note that another consequence of this patch is that insertion on >> packet create is now O(N) with the number of active packet sockets, >> due to sklist being an hlist. > > Exploitable... After reading Willem's explanation of how the scope of such a problem is constrained, I am going to apply this and queue it up for -stable. Maybe in the long term we can do the hlist reverse RCU thing.
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