Joanna RootkovskaIn case there are any Qubes OS users here: we just released Qubes Security Bulletin #29 for a critical Xen bug in PV memory virtualization allowing VM escape (XSA-212):
https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt
Rysiekúr (old account)@rootkovska Prospective #QubesOS user (been eyeing Qubes OS for years, esp. after the presentation given by your colleagues at #WarsawHackerspace); waiting to get a machine that can handle it (within a week).