This is a tracking bug for the following Xen Security Advisories *** EMBARGOED UNTIL 2015-03-31 12:00 UTC *** Xen Security Advisory XSA-125 Long latency MMIO mapping operations are not preemptible Xen Security Advisory XSA-126 Unmediated PCI command register access in qemu Xen Security Advisory XSA-127 Certain domctl operations may be abused to lock up the host Details and patches are distributed by email to maintainers. Please prepare updated ebuilds for this while in embargo, but do not publish these in any public repository.
Issues are public
at this point the xsa126 patches all fail to take
at this next point the xsa126 patches tweaked by dlan work for both -qemuu and -qemut for 4.2, 4.4, 4.5 take fine. We have a leftover xsa126-qemuu-4.3.patch that appears to need a similar tweak. Is there any gain in adding the 125 & 127 patches before that gets done?
*** This bug has been marked as a duplicate of bug 545144 ***