On 10/12/2018 02:17 PM, Daniel P. Berrangé wrote: > On Fri, Oct 12, 2018 at 01:14:51PM +0200, Michal Privoznik wrote: >> https://bugzilla.redhat.com/show_bug.cgi?id=1632833 >> >> When doing a SCSI passthrough we don't put format= onto the >> command line. This causes qemu to probe the format automatically >> which ends up in a warning in the domain log and possible qemu >> disabling writes to the first block (according to the warning >> message). > > If the warning message is correct, this should have been reported > as a security bug to libvirt and given a CVE. Why is that? It the message is correct, qemu would prevent from writing to the first block. No harm there. > > On the other hand if the warning from QEMU isn't correct, then > QEMU shouldn't have printed the warning about it being dangerous. In my testing I was able to write to the first block. Therefore, IMO qemu is throwing incorrect warning message. > > So something is missing here either way. Sure, but that doesn't invalidate my patch, does it? Michal -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list