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Diffstat (limited to 'arch/powerpc/kvm/book3s_xive_native.c')
-rw-r--r--arch/powerpc/kvm/book3s_xive_native.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_xive_native.c b/arch/powerpc/kvm/book3s_xive_native.c
index d0c2db0e07fa..a59a94f02733 100644
--- a/arch/powerpc/kvm/book3s_xive_native.c
+++ b/arch/powerpc/kvm/book3s_xive_native.c
@@ -251,6 +251,13 @@ static vm_fault_t xive_native_esb_fault(struct vm_fault *vmf)
}
state = &sb->irq_state[src];
+
+ /* Some sanity checking */
+ if (!state->valid) {
+ pr_devel("%s: source %lx invalid !\n", __func__, irq);
+ return VM_FAULT_SIGBUS;
+ }
+
kvmppc_xive_select_irq(state, &hw_num, &xd);
arch_spin_lock(&sb->lock);