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Fix nil pointer dereference in atomicScaleDownNode #9453

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Fix nil pointer dereference in atomicScaleDownNode #9453

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5 changes: 5 additions & 0 deletions cluster-autoscaler/core/scaledown/planner/planner.go
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@ package planner

import (
"fmt"
"reflect"
"time"

apiv1 "k8s.io/api/core/v1"
Expand Down Expand Up @@ -340,6 +341,10 @@ func (p *Planner) atomicScaleDownNode(node *simulator.NodeToBeRemoved) bool {
klog.Errorf("failed to get node info for %v: %s", node.Node.Name, err)
return false
}
if nodeGroup == nil || reflect.ValueOf(nodeGroup).IsNil() {
klog.V(4).Infof("Skipping node %v for atomic scale down - no node group found", node.Node.Name)
return false
}
autoscalingOptions, err := nodeGroup.GetOptions(p.autoscalingCtx.NodeGroupDefaults)
if err != nil && err != cloudprovider.ErrNotImplemented {
klog.Errorf("Failed to get autoscaling options for node group %s: %v", nodeGroup.Id(), err)
Expand Down