From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH V3 net 1/1] smc: switch to usage of IB_PD_UNSAFE_GLOBAL_RKEY Date: Tue, 16 May 2017 14:53:08 -0400 (EDT) Message-ID: <20170516.145308.1101082394249977339.davem@davemloft.net> References: <20170515153337.31262-1-ubraun@linux.vnet.ibm.com> <20170515153337.31262-2-ubraun@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: hch-jcswGhMUV9g@public.gmane.org, netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-s390-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, jwi-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, schwidefsky-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org, heiko.carstens-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org, raspl-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org To: ubraun-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org Return-path: In-Reply-To: <20170515153337.31262-2-ubraun-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: netdev.vger.kernel.org From: Ursula Braun Date: Mon, 15 May 2017 17:33:37 +0200 > Currently, SMC enables remote access to physical memory when a user > has successfully configured and established an SMC-connection until ten > minutes after the last SMC connection is closed. Because this is considered > a security risk, drivers are supposed to use IB_PD_UNSAFE_GLOBAL_RKEY in > such a case. > > This patch changes the current SMC code to use IB_PD_UNSAFE_GLOBAL_RKEY. > This improves user awareness, but does not remove the security risk itself. > > Signed-off-by: Ursula Braun Applied. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html