On Fri, Jun 29, 2018 at 16:56:12 +0200, Michal Privoznik wrote:

The @prefix attribute to <ip/> element for interface type user is optional. Therefore, if left out it has value of zero in which case we should not check whether it falls into <4, 27> range. Otherwise we fail parsing domain XML for no good reason.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>

Broken in commit b62b8090b2ad4524a5bf9d40d0d1c17a9d57f5a0 also since this patch originates from the bugzilla mentioned in the above commit you should add it here as well.

--- src/qemu/qemu_domain.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index afd572fc5e..c1798edf41 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -4373,7 +4373,8 @@ qemuDomainDeviceDefValidateNetwork(const virDomainNetDef *net) } hasIPv4 = true;

- if (ip->prefix < 4 || ip->prefix > 27) { + if (ip->prefix > 0 && + (ip->prefix < 4 || ip->prefix > 27)) { virReportError(VIR_ERR_XML_ERROR, "%s", _("invalid prefix, must be in range of 4-27")); return -1;

ACK with the commit message ammended.