src/http/ngx_http_core_module.c:3807: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned64 by call to `ngx_parse_offset`.

src/http/ngx_http_core_module.c:3807:22: Call
3805.     }
3806. 
3807.     clcf->directio = ngx_parse_offset(&value[1]);
                           ^
3808.     if (clcf->directio == (off_t) NGX_ERROR) {
3809.         return "invalid value";

src/core/ngx_parse.c:50:1: <LHS trace>
48. 
49. 
50. off_t
    ^
51. ngx_parse_offset(ngx_str_t *line)
52. {

src/core/ngx_parse.c:50:1: Parameter `line->len`
  48. 
  49. 
  50. off_t
      ^
  51. ngx_parse_offset(ngx_str_t *line)
  52. {

src/core/ngx_parse.c:58:5: Assignment
  56.     ngx_int_t  scale;
  57. 
  58.     len = line->len;
          ^
  59.     unit = line->data[len - 1];
  60. 

src/core/ngx_parse.c:59:12: Binary operation: ([0, +oo] - 1):unsigned64 by call to `ngx_parse_offset` 
  57. 
  58.     len = line->len;
  59.     unit = line->data[len - 1];
                 ^
  60. 
  61.     switch (unit) {
