Language: Go
Label: safe
CWE: CWE-366 \u2014 Race Condition within a Thread
If two threads of execution use a resource simultaneously, there exists the possibility that resources may be used while invalid, in turn making the state of execution undefined.

Code:
func (v *VoteActivity) HasRank() int {
	if v.Rank != 0 {
		return 1
	}
	return 0
}