If fail to create irq chip due to fail of kvm_setup_default_irq_routing(),
kvm->arch.vioapic is not set to NULL, this may cause KVM_GET_IRQCHIP and
KVM_SET_IRQCHIP access to unexcepted memory.
Signed-off-by: Wei Yongjun <yjwei@xxxxxxxxxxxxxx>
---
arch/ia64/kvm/kvm-ia64.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 0618898..0cfc15d 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -969,6 +969,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
r = kvm_setup_default_irq_routing(kvm);
if (r) {
kfree(kvm->arch.vioapic);
+ kvm->arch.vioapic = NULL;
goto out;
}
break;
--
1.6.3.3
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