netdev - Re: [PATCH V3 net 1/1] smc: switch to usage of IB_PD_UNSAFE_GLOBAL

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Tue, 16 May 2017 14:53:08 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     ubraun@...ux.vnet.ibm.com
Cc:     hch@....de, netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        linux-s390@...r.kernel.org, jwi@...ux.vnet.ibm.com,
        schwidefsky@...ibm.com, heiko.carstens@...ibm.com,
        raspl@...ux.vnet.ibm.com
Subject: Re: [PATCH V3 net 1/1] smc: switch to usage of
 IB_PD_UNSAFE_GLOBAL_RKEY

From: Ursula Braun <ubraun@...ux.vnet.ibm.com>
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 <ubraun@...ux.vnet.ibm.com>

Applied.