libavcodec/vc1dec.c:2771: error: Buffer Overrun L2
  Offset: [-oo, 66] (⇐ [1, 3] + [-oo, 63]) Size: 4.

libavcodec/vc1dec.c:2767:13: <Offset trace>
2765. 
2766.         while (!last) {
2767.             vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
                  ^
2768.             i += skip;
2769.             if (i > 63)

libavcodec/vc1dec.c:2767:13: Call
2765. 
2766.         while (!last) {
2767.             vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
                  ^
2768.             i += skip;
2769.             if (i > 63)

libavcodec/vc1acdata.h:259:1: Array declaration
  257. };
  258. 
  259. static const uint8_t vc1_index_decode_table[AC_MODES][185][2] = {
       ^
  260. {
  261. {  0,  1}, {  0,  2}, {  0,  3}, {  0,  4}, {  0,  5}, {  0,  6}, {  0,  7}, {  0,  8},

libavcodec/vc1dec.c:2630:9: Assignment
  2628.     index = get_vlc2(gb, ff_vc1_ac_coeff_table[codingset].table, AC_VLC_BITS, 3);
  2629.     if (index != vc1_ac_sizes[codingset] - 1) {
  2630.         run   = vc1_index_decode_table[codingset][index][0];
                ^
  2631.         level = vc1_index_decode_table[codingset][index][1];
  2632.         lst   = index >= vc1_last_decode_table[codingset] || get_bits_left(gb) < 0;

libavcodec/vc1dec.c:2677:5: Assignment
  2675. 
  2676.     *last  = lst;
  2677.     *skip  = run;
            ^
  2678.     *value = level;
  2679. }

libavcodec/vc1dec.c:2768:13: Assignment
2766.         while (!last) {
2767.             vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
2768.             i += skip;
                  ^
2769.             if (i > 63)
2770.                 break;

libavcodec/vc1dec.c:2688:1: <Length trace>
2686.  * @param codingset set of VLC to decode data
2687.  */
2688. static int vc1_decode_i_block(VC1Context *v, DCTELEM block[64], int n,
      ^
2689.                               int coded, int codingset)
2690. {

libavcodec/vc1dec.c:2688:1: Parameter `v->zz_8x8[*]`
2686.  * @param codingset set of VLC to decode data
2687.  */
2688. static int vc1_decode_i_block(VC1Context *v, DCTELEM block[64], int n,
      ^
2689.                               int coded, int codingset)
2690. {

libavcodec/vc1dec.c:2753:17: Assignment
2751.         if (v->s.ac_pred) {
2752.             if (!dc_pred_dir)
2753.                 zz_table = v->zz_8x8[2];
                      ^
2754.             else
2755.                 zz_table = v->zz_8x8[3];

libavcodec/vc1dec.c:2771:19: Array access: Offset: [-oo, 66] (⇐ [1, 3] + [-oo, 63]) Size: 4
2769.             if (i > 63)
2770.                 break;
2771.             block[zz_table[i++]] = value;
                        ^
2772.         }
2773. 
