          const reserveChannel = () => {
            localChan = this._chanMgr.add();

            if (localChan === -1) {
              reason = CHANNEL_OPEN_FAILURE.RESOURCE_SHORTAGE;
              if (debug) {
                debug('Automatic rejection of incoming channel open: '
                        + 'no channels available');
              }
            }

            return (localChan !== -1);
          };
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.