freecon,  freeconary  -  free  memory  associated with SELinux security
       contexts.
       #include <selinux/selinux.h>
       void freecon(security_context_t con);
       void freeconary(security_context_t *con);
       freecon frees the memory allocated for a security context.
       freeconary frees the memory allocated for a context array.
       If con is NULL, no operation is performed.
       selinux(8)