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qemu: do not crash on USB address with no port and invalid bus

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Properly error out when the user requests a port from a bus
that does not have a controller present in the domain XML.

https://bugzilla.redhat.com/show_bug.cgi?id=1441589
(cherry picked from commit b003b9781b6ae633cfe4fdf6b9620ca246fa2432)
This commit is contained in:
Ján Tomko 2017-04-12 12:40:57 +02:00 committed by Cole Robinson
parent 670102c0ad
commit e62d61e7f8
3 changed files with 27 additions and 1 deletions
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3
src/conf/domain_addr.c
View File

@ -2009,7 +2009,8 @@ virDomainUSBAddressAssign(virDomainUSBAddressSetPtr addrs,
if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB) {
VIR_DEBUG("A USB port on bus %u was requested", info->addr.usb.bus);
if (!addrs->buses[info->addr.usb.bus]) {
if (info->addr.usb.bus >= addrs->nbuses ||
!addrs->buses[info->addr.usb.bus]) {
virReportError(VIR_ERR_XML_ERROR,
_("USB bus %u requested but no controller "
"with that index is present"), info->addr.usb.bus);

22
tests/qemuxml2argvdata/qemuxml2argv-usb-bus-missing.xml Normal file
View File

@ -0,0 +1,22 @@
<domain type='qemu'>
<name>QEMUGuest1</name>
<uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
<memory unit='KiB'>219136</memory>
<currentMemory unit='KiB'>219136</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='i686' machine='pc'>hvm</type>
<boot dev='hd'/>
</os>
<devices>
<emulator>/usr/bin/qemu-system-i686</emulator>
<controller type='usb' index='0'/>
<memballoon model='virtio'/>
<input type='mouse' bus='usb'>
<address type='usb' bus='0'/>
</input>
<hub type='usb'>
<address type='usb' bus='1'/>
</hub>
</devices>
</domain>

3
tests/qemuxml2argvtest.c
View File

@ -1343,6 +1343,9 @@ mymain(void)
DO_TEST("usb-port-missing",
QEMU_CAPS_CHARDEV, QEMU_CAPS_USB_HUB,
QEMU_CAPS_NODEFCONFIG);
DO_TEST_PARSE_ERROR("usb-bus-missing",
QEMU_CAPS_CHARDEV, QEMU_CAPS_USB_HUB,
QEMU_CAPS_NODEFCONFIG);
DO_TEST("usb-ports",
QEMU_CAPS_CHARDEV, QEMU_CAPS_USB_HUB,
QEMU_CAPS_NODEFCONFIG);