From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Horman Subject: Re: [PATCH net 0/3] Some sockopt optlen fixes Date: Mon, 8 Jan 2018 20:23:52 -0500 Message-ID: <20180109012352.GA25809@neilslaptop.think-freely.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org, linux-sctp@vger.kernel.org, Vlad Yasevich , haliu@redhat.com To: Marcelo Ricardo Leitner Return-path: Received: from charlotte.tuxdriver.com ([70.61.120.58]:47433 "EHLO smtp.tuxdriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752222AbeAIBYm (ORCPT ); Mon, 8 Jan 2018 20:24:42 -0500 Content-Disposition: inline In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On Mon, Jan 08, 2018 at 07:02:26PM -0200, Marcelo Ricardo Leitner wrote: > Hangbin Liu reported that some SCTP sockopt are allowing the user to get > the kernel to allocate really large buffers by not having a ceiling on > optlen. > > This patchset address this issue (in patch 2), replace an GFP_ATOMIC > that isn't needed and avoid calculating the option size multiple times > in some setsockopt. > > Marcelo Ricardo Leitner (3): > sctp: GFP_ATOMIC is not needed in sctp_setsockopt_events > sctp: add a ceiling to optlen in some sockopts > sctp: make use of pre-calculated len > > net/sctp/socket.c | 28 +++++++++++++++++++++------- > 1 file changed, 21 insertions(+), 7 deletions(-) > > -- > 2.14.3 > > Series Acked-by: Neil Horman