On Mon, Jun 29, 2020 at 09:33:15PM +0000, Haiyang Zhang wrote: > > > > -----Original Message----- > > From: Andres Beltran <lkmlabelt@xxxxxxxxx> > > Sent: Monday, June 29, 2020 4:02 PM > > To: KY Srinivasan <kys@xxxxxxxxxxxxx>; Haiyang Zhang > > <haiyangz@xxxxxxxxxxxxx>; Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>; > > wei.liu@xxxxxxxxxx > > Cc: linux-hyperv@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Michael > > Kelley <mikelley@xxxxxxxxxxxxx>; parri.andrea@xxxxxxxxx; Andres Beltran > > <lkmlabelt@xxxxxxxxx>; David S . Miller <davem@xxxxxxxxxxxxx>; Jakub > > Kicinski <kuba@xxxxxxxxxx>; netdev@xxxxxxxxxxxxxxx > > Subject: [PATCH v2 3/3] hv_netvsc: Use vmbus_requestor to generate > > transaction IDs for VMBus hardening > > > > 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. > > > > Cc: David S. Miller <davem@xxxxxxxxxxxxx> > > Cc: Jakub Kicinski <kuba@xxxxxxxxxx> > > Cc: netdev@xxxxxxxxxxxxxxx > > Signed-off-by: Andres Beltran <lkmlabelt@xxxxxxxxx> > > Reviewed-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx> > > Thanks Haiyang for reviewing. David and Jakub: This patch depends on the first patch. I intend to pick up this patch via hyperv.git. This makes life easier for all of us. Let me know if you disagree. Wei.
