src/http/modules/ngx_http_try_files_module.c:278: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned64 by call to `ngx_http_set_exten`.

src/http/modules/ngx_http_try_files_module.c:78:1: Parameter `r->uri.len`
76. 
77. 
78. static ngx_int_t
    ^
79. ngx_http_try_files_handler(ngx_http_request_t *r)
80. {

src/http/modules/ngx_http_try_files_module.c:278:9: Call
276.         }
277. 
278.         ngx_http_set_exten(r);
             ^
279. 
280.         ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,

src/http/ngx_http_core_module.c:1550:1: <LHS trace>
1548. 
1549. 
1550. void
      ^
1551. ngx_http_set_exten(ngx_http_request_t *r)
1552. {

src/http/ngx_http_core_module.c:1550:1: Parameter `r->uri.len`
  1548. 
  1549. 
  1550. void
        ^
  1551. ngx_http_set_exten(ngx_http_request_t *r)
  1552. {

src/http/ngx_http_core_module.c:1557:10: Binary operation: ([0, +oo] - 1):unsigned64 by call to `ngx_http_set_exten` 
  1555.     ngx_str_null(&r->exten);
  1556. 
  1557.     for (i = r->uri.len - 1; i > 1; i--) {
                 ^
  1558.         if (r->uri.data[i] == '.' && r->uri.data[i - 1] != '/') {
  1559. 
