Insufficient arguments validation for hooked functions allows privilege escalation.
vulners.com/securityvulns/securityvulns:doc:16744
vulners.com/securityvulns/securityvulns:doc:16810
vulners.com/securityvulns/securityvulns:doc:16819
vulners.com/securityvulns/securityvulns:doc:16909