Kubelet segfaults and restarts sporadically

Issue

• Kubelet in OCP nodes restarts, which leads to the nodes becoming NotReady temporarily. Why does this happen and how can we prevent it?
• Kubelet panics with an invalid memory address in net.ParseIP

Oct 11 02:44:10 example.com hyperkube[xxxxx]: panic: runtime error: invalid memory address or nil pointer dereference
Oct 11 02:44:10 example.com hyperkube[xxxxx]: [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x555a9b]
Oct 11 02:44:10 example.com hyperkube[xxxxx]: goroutine 461 [running]:
Oct 11 02:44:10 example.com hyperkube[xxxxx]: net.ParseIP(0x0, 0xd, 0x441db60, 0x8801, 0xc0071ec2d0)
Oct 11 02:44:10 example.com hyperkube[xxxxx]:         /usr/lib/golang/src/net/ip.go:680 +0x3b
Oct 11 02:44:10 example.com hyperkube[xxxxx]: k8s.io/kubernetes/vendor/k8s.io/utils/net.IsIPv4String(0x0, 0xd, 0x1)
Oct 11 02:44:10 example.com hyperkube[xxxxx]:         /builddir/build/BUILD/openshift-4.8.0/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/utils/net/net.go:147 +0x39