Given the following code containing errors, provide Common Weakness Enumeration (CWE) identifiers and corresponding messages in JSON format. Each identified weakness should have a unique entry in the JSON array.
    Code: dfaexec (struct dfa *d, char const *begin, char *end,
         int allow_nl, int *count, int *backref)
{
  int s, s1;		/* Current state. */
  unsigned char const *p; /* Current input character. */
  int **trans, *t;	/* Copy of d->trans so it can be optimized
                                   into a register. */
  unsigned char eol = eolbyte;	/* Likewise for eolbyte.  */
  unsigned char saved_end;

  if (! d->tralloc)
    build_state_zero(d);

  s = s1 = 0;
  p = (unsigned char const *) begin;
  trans = d->trans;
  saved_end = *(unsigned char *) end;
  *end = eol;

  if (d->mb_cur_max > 1)
    {
      MALLOC(mblen_buf, end - begin + 2);
      MALLOC(inputwcs, end - begin + 2);
      memset(&mbs, 0, sizeof(mbstate_t));
      prepare_wc_buf ((const char *) p, end);
    }

  for (;;)
    {
      if (d->mb_cur_max > 1)
        while ((t = trans[s]) != NULL)
          {
            if (p > buf_end)
              break;
            s1 = s;
            SKIP_REMAINS_MB_IF_INITIAL_STATE(s, p);

            if (d->states[s].mbps.nelem == 0)
              {
                s = t[*p++];
                continue;
              }

            /* Falling back to the glibc matcher in this case gives
               better performance (up to 25% better on [a-z], for
               example) and enables support for collating symbols and
               equivalence classes.  */
            if (backref)
              {
                *backref = 1;
                free(mblen_buf);
                free(inputwcs);
                *end = saved_end;
                return (char *) p;
              }

            /* Can match with a multibyte character (and multi character
               collating element).  Transition table might be updated.  */
            s = transit_state(d, s, &p);
            trans = d->trans;
          }
      else
        {
          while ((t = trans[s]) != NULL)
            {
              s1 = t[*p++];
              if ((t = trans[s1]) == NULL)
                {
                  int tmp = s; s = s1; s1 = tmp; /* swap */
                  break;
                }
              s = t[*p++];
            }
        }

      if (s >= 0 && (char *) p <= end && d->fails[s])
        {
          if (d->success[s] & sbit[*p])
            {
              if (backref)
                *backref = (d->states[s].backref != 0);
              if (d->mb_cur_max > 1)
                {
                  free(mblen_buf);
                  free(inputwcs);
                }
              *end = saved_end;
              return (char *) p;
            }

          s1 = s;
          if (d->mb_cur_max > 1)
            {
              /* Can match with a multibyte character (and multicharacter
                 collating element).  Transition table might be updated.  */
              s = transit_state(d, s, &p);
              trans = d->trans;
            }
          else
            s = d->fails[s][*p++];
          continue;
        }

      /* If the previous character was a newline, count it. */
      if ((char *) p <= end && p[-1] == eol)
        {
          if (count)
            ++*count;

          if (d->mb_cur_max > 1)
            prepare_wc_buf ((const char *) p, end);
        }

      /* Check if we've run off the end of the buffer. */
      if ((char *) p > end)
        {
          if (d->mb_cur_max > 1)
            {
              free(mblen_buf);
              free(inputwcs);
            }
          *end = saved_end;
          return NULL;
        }

      if (s >= 0)
        {
          build_state(s, d);
          trans = d->trans;
          continue;
        }

      if (p[-1] == eol && allow_nl)
        {
          s = d->newlines[s1];
          continue;
        }

      s = 0;
    }
} ; Sample JSON Format Confermily Expected output: "examples" => "cwe": "xxx"; "message": "xxx"
    
 'cwe': ['CWE-189'], 'message': 'grep: fix some core dumps with long lines etc.

These problems mostly occur because the code attempts to stuff
sizes into int or into unsigned int; this doesn't work on most
64-bit hosts and the errors can lead to core dumps.
* NEWS: Document this.
* src/dfa.c (token): Typedef to ptrdiff_t, since the enum's
range could be as small as -128 .. 127 on practical hosts.
(position.index): Now size_t, not unsigned int.
(leaf_set.elems): Now size_t *, not unsigned int *.
(dfa_state.hash, struct mb_char_classes.nchars, .nch_classes)
(.nranges, .nequivs, .ncoll_elems, struct dfa.cindex, .calloc, .tindex)
(.talloc, .depth, .nleaves, .nregexps, .nmultibyte_prop, .nmbcsets):
(.mbcsets_alloc): Now size_t, not int.
(dfa_state.first_end): Now token, not int.
(state_num): New type.
(struct mb_char_classes.cset): Now ptrdiff_t, not int.
(struct dfa.utf8_anychar_classes): Now token[5], not int[5].
(struct dfa.sindex, .salloc, .tralloc): Now state_num, not int.
(struct dfa.trans, .realtrans, .fails): Now state_num **, not int **.
(struct dfa.newlines): Now state_num *, not int *.
(prtok): Don't assume 'token' is no wider than int.
(lexleft, parens, depth): Now size_t, not int.
(charclass_index, nsubtoks)
(parse_bracket_exp, addtok, copytoks, closure, insert, merge, delete)
(state_index, epsclosure, state_separate_contexts)
(dfaanalyze, dfastate, build_state, realloc_trans_if_necessary)
(transit_state_singlebyte, match_anychar, match_mb_charset)
(check_matching_with_multibyte_ops, transit_state_consume_1char)
(transit_state, dfaexec, free_mbdata, dfaoptimize, dfafree)
(freelist, enlist, addlists, inboth, dfamust):
Don't assume indexes fit in 'int'.
(lex): Avoid overflow in string-to-{hi,lo} conversions.
(dfaanalyze): Redo indexing so that it works with size_t values,
which cannot go negative.
* src/dfa.h (dfaexec): Count argument is now size_t *, not int *.
(dfastate): State numbers are now ptrdiff_t, not int.
* src/dfasearch.c: Include "intprops.h", for TYPE_MAXIMUM.
(kwset_exact_matches): Now size_t, not int.
(EGexecute): Don't assume indexes fit in 'int'.
Check for overflow before converting a ptrdiff_t to a regoff_t,
as regoff_t is narrower than ptrdiff_t in 64-bit glibc (contra POSIX).
Check for memory exhaustion in re_search rather than treating
it merely as failure to match; use xalloc_die () to report any error.
* src/kwset.c (struct trie.accepting): Now size_t, not unsigned int.
(struct kwset.words): Now ptrdiff_t, not int.
* src/kwset.h (struct kwsmatch.index): Now size_t, not int.'