I'm looking at CVE-2015-8553 which is fixed by: commit 7681f31ec9cdacab4fd10570be924f2cef6669ba Author: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> Date: Wed Feb 13 18:21:31 2019 -0500 xen/pciback: Don't disable PCI_COMMAND on PCI device reset. I'm aware that this change is incompatible with qemu < 2.5, but that's now quite old. Do you think it makes sense to apply this change to some stable branches? Ben. -- Ben Hutchings, Software Developer Codethink Ltd https://www.codethink.co.uk/ Dale House, 35 Dale Street Manchester, M1 2HF, United Kingdom