Messages in this thread | | | Date | Fri, 13 Nov 2020 11:33:41 +0000 | From | Wei Liu <> | Subject | Re: [PATCH v9 3/3] hv_netvsc: Use vmbus_requestor to generate transaction IDs for VMBus hardening |
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On Mon, Nov 09, 2020 at 11:04:02AM +0100, Andrea Parri (Microsoft) wrote: > From: Andres Beltran <lkmlabelt@gmail.com> > > Currently, pointers to guest memory are passed to Hyper-V as > transaction IDs in netvsc. In the face of errors or malicious > behavior in Hyper-V, netvsc should not expose or trust the transaction > IDs returned by Hyper-V to be valid guest memory addresses. Instead, > use small integers generated by vmbus_requestor as requests > (transaction) IDs. > > Signed-off-by: Andres Beltran <lkmlabelt@gmail.com> > Co-developed-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com> > Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com> > Reviewed-by: Michael Kelley <mikelley@microsoft.com> > Acked-by: Jakub Kicinski <kuba@kernel.org> > Cc: "David S. Miller" <davem@davemloft.net> > Cc: Jakub Kicinski <kuba@kernel.org> > Cc: netdev@vger.kernel.org
Reviewed-by: Wei Liu <wl@xen.org>
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