[libvirt] [PATCH 01/35] qemu: Fix possible crash in qemuProcessSetVcpuAffinities
In case when <vcpu ... cpuset=""> is not specified, the vcpupin array is
not guaranteed to be allocated to def->vcpus. This would cause a crash
for TCG since it does not report thread IDs for vCPUs.
---
src/qemu/qemu_process.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 9c5d0f4..f2b2229 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -2376,7 +2376,7 @@ qemuProcessSetVcpuAffinities(virDomainObjPtr vm)
/* If any CPU has custom affinity that differs from the
* VM default affinity, we must reject it
*/
- for (n = 0; n < def->vcpus; n++) {
+ for (n = 0; n < def->cputune.nvcpupin; n++) {
if (!virBitmapEqual(def->cpumask,
def->cputune.vcpupin[n]->cpumask)) {
virReportError(VIR_ERR_OPERATION_INVALID,
--
2.4.1