src/http/modules/ngx_http_geo_module.c:974: error: Integer Overflow L2
  ([0, max(4294901760, `start`)] + 65536):unsigned32.

src/http/modules/ngx_http_geo_module.c:963:1: <LHS trace>
961. 
962. 
963. static ngx_uint_t
     ^
964. ngx_http_geo_delete_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx,
965.     in_addr_t start, in_addr_t end)

src/http/modules/ngx_http_geo_module.c:963:1: Parameter `start`
961. 
962. 
963. static ngx_uint_t
     ^
964. ngx_http_geo_delete_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx,
965.     in_addr_t start, in_addr_t end)

src/http/modules/ngx_http_geo_module.c:974:31: Binary operation: ([0, max(4294901760, start)] + 65536):unsigned32
972.     warn = 0;
973. 
974.     for (n = start; n <= end; n = (n + 0x10000) & 0xffff0000) {
                                   ^
975. 
976.         h = n >> 16;
