Messages in this thread | | | Subject | Re: [PATCH 0/5] RDMA: reg_remote_mr | From | Steve Wise <> | Date | Tue, 29 Jan 2019 10:44:48 -0600 |
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On 1/29/2019 7:26 AM, Joel Nider wrote: > As discussed at LPC'18, there is a need to be able to register a memory > region (MR) on behalf of another process. One example is the case of > post-copy container migration, in which CRIU is responsible for setting > up the migration, but the contents of the memory are from the migrating > process. In this case, we want all RDMA READ requests to be served by > the address space of the migration process directly (not by CRIU). This > patchset implements a new uverbs command which allows an application to > register a memory region in the address space of another process.
Hey Joel,
Dumb question:
Doesn't this open a security hole by allowing any process to register memory in any other process?
Steve.
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