src/http/modules/ngx_http_geo_module.c:693: error: Integer Overflow L2
  ([0, 65535] - 1):unsigned64.

src/http/modules/ngx_http_geo_module.c:599:13: <LHS trace>
597.             s = n & 0xffff;
598.         } else {
599.             s = 0;
                 ^
600.         }
601. 

src/http/modules/ngx_http_geo_module.c:599:13: Assignment
597.             s = n & 0xffff;
598.         } else {
599.             s = 0;
                 ^
600.         }
601. 

src/http/modules/ngx_http_geo_module.c:693:17: Binary operation: ([0, 65535] - 1):unsigned64
691.                 range[i + 1].value = ctx->value;
692. 
693.                 range[i].end = (u_short) (s - 1);
                     ^
694. 
695.                 goto next;
