Few integer overflows in procfs implementation and readv() call.
vulners.com/securityvulns/securityvulns:doc:5191
vulners.com/securityvulns/securityvulns:doc:5192
vulners.com/securityvulns/securityvulns:doc:5196
vulners.com/securityvulns/securityvulns:doc:5197