Subject: [rddp] Re: security-draft : Stale Data

From: Caitlin Bestler <[email-masked]>
Date: Tue, 24 Jun 2003 20:37:23 -0500

>From 7.4.2 "Using RDMA Read to Access Stale Data"

>   Because of this, it is RECOMMENDED that the Local Peer ensure that 
>   no stale data is contained in the buffer when remote read access 
>   rights are initially granted (this can be done by zeroing the 
>   contents of the memory, for example).

This is only a concern if the buffer might contain data that originated
outside of the current session. That could be done by zeroing the
contents of memory at the beginning of the session, rather than
before advertising the buffer.

If a single buffer pool is used across multiple sessions, however,
then the ULP should indeed obliterate any old contents before
enabling it for remote read access.

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