[libvirt] [PATCH 3/4] util: Fix for NULL dereference
The device xml parser code does not set "model" while parsing
<interface type='hostdev'>
<source>
<address type='pci' domain='0x0002' bus='0x01'
slot='0x00' function='0x2'/>
</source>
</interface>
virDomainDefPtr def->nets[i]->model can be NULL while latter compares strings with
STREQ instead of STREQ_NULLABLE.
Fixes: ac47e4a6225 (qemu: replace "def->nets[i]" with "net" and
"def->sounds[i]" with "sound")
Fixes: c7fc151eec7 (qemu: assign virtio devices to PCIe slot when appropriate)
Signed-off-by: Radoslaw Biernacki <radoslaw.biernacki(a)linaro.org>
---
src/qemu/qemu_domain_address.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c
index 27c9bfb946..15d25481d8 100644
--- a/src/qemu/qemu_domain_address.c
+++ b/src/qemu/qemu_domain_address.c
@@ -232,8 +232,7 @@ qemuDomainAssignSpaprVIOAddresses(virDomainDefPtr def)
for (i = 0; i < def->nnets; i++) {
virDomainNetDefPtr net = def->nets[i];
- if (net->model &&
- STREQ(net->model, "spapr-vlan")) {
+ if (STREQ_NULLABLE(net->model, "spapr-vlan")) {
net->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO;
}
@@ -325,7 +324,7 @@ qemuDomainPrimeVirtioDeviceAddresses(virDomainDefPtr def,
virDomainNetDefPtr net = def->nets[i];
if (net->model &&
- STREQ(net->model, "virtio") &&
+ STREQ_NULLABLE(net->model, "virtio") &&
net->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
net->info.type = type;
}
@@ -634,14 +633,14 @@ qemuDomainDeviceCalculatePCIConnectFlags(virDomainDeviceDefPtr dev,
* addresses for other hostdev devices.
*/
if (net->type == VIR_DOMAIN_NET_TYPE_HOSTDEV ||
- STREQ(net->model, "usb-net")) {
+ STREQ_NULLABLE(net->model, "usb-net")) {
return 0;
}
- if (STREQ(net->model, "virtio"))
+ if (STREQ_NULLABLE(net->model, "virtio"))
return virtioFlags;
- if (STREQ(net->model, "e1000e"))
+ if (STREQ_NULLABLE(net->model, "e1000e"))
return pcieFlags;
return pciFlags;
--
2.14.1