Check Node for CVE-2022-0185 in CEL expressions

 1apiVersion: kyverno.io/v1
 2kind: ClusterPolicy
 3metadata:
 4  name: check-kernel
 5  annotations:
 6    policies.kyverno.io/title: Check Node for CVE-2022-0185 in CEL expressions
 7    policies.kyverno.io/category: Other in CEL 
 8    policies.kyverno.io/severity: high
 9    kyverno.io/kyverno-version: 1.11.0
10    policies.kyverno.io/minversion: 1.11.0
11    kyverno.io/kubernetes-version: "1.26-1.27"
12    policies.kyverno.io/subject: Node
13    policies.kyverno.io/description: >-
14      Linux CVE-2022-0185 can allow a container escape in Kubernetes if left unpatched.
15      The affected Linux kernel versions, at this time, are 5.10.84-1 and 5.15.5-2.
16      For more information, refer to https://security-tracker.debian.org/tracker/CVE-2022-0185.
17      This policy runs in background mode and flags an entry in the ClusterPolicyReport
18      if any Node is reporting one of the affected kernel versions.
19spec:
20  validationFailureAction: Audit
21  background: true
22  rules:
23  - name: kernel-validate
24    match:
25      any:
26      - resources:
27          kinds:
28            - Node
29          operations:
30          - CREATE
31          - UPDATE
32    validate:
33      cel:
34        expressions:
35          - expression: "!(object.status.nodeInfo.kernelVersion in ['5.10.84-1', '5.15.5-2'])"
36            message: "Kernel is vulnerable to CVE-2022-0185."
37