server/util.c:1114: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned64 by call to `ap_cfg_getline_core`.

server/util.c:1093:1: Parameter `vb->avail`
1091. }
1092. 
1093. AP_DECLARE(apr_status_t) ap_varbuf_cfg_getline(struct ap_varbuf *vb,
      ^
1094.                                                ap_configfile_t *cfp,
1095.                                                apr_size_t max_len)

server/util.c:1114:14: Call
1112. 
1113.     for (;;) {
1114.         rc = ap_cfg_getline_core(vb->buf + vb->strlen, vb->avail - vb->strlen, cfp);
                   ^
1115.         if (rc == APR_ENOSPC || rc == APR_SUCCESS)
1116.             vb->strlen += strlen(vb->buf + vb->strlen);

server/util.c:965:1: <LHS trace>
963. /* Read one line from open ap_configfile_t, strip LF, increase line number */
964. /* If custom handler does not define a getstr() function, read char by char */
965. static apr_status_t ap_cfg_getline_core(char *buf, apr_size_t bufsize,
     ^
966.                                         ap_configfile_t *cfp)
967. {

server/util.c:965:1: Parameter `bufsize`
  963. /* Read one line from open ap_configfile_t, strip LF, increase line number */
  964. /* If custom handler does not define a getstr() function, read char by char */
  965. static apr_status_t ap_cfg_getline_core(char *buf, apr_size_t bufsize,
       ^
  966.                                         ap_configfile_t *cfp)
  967. {

server/util.c:1012:22: Binary operation: ([0, +oo] - 1):unsigned64 by call to `ap_cfg_getline_core` 
  1010.                 }
  1011.             }
  1012.             else if (cp - buf >= bufsize - 1) {
                             ^
  1013.                 return APR_ENOSPC;
  1014.             }
