libavcodec/vc1_block.c:2660: error: Buffer Overrun L2
  Offset: [0, 63] Size: 2.

libavcodec/vc1_block.c:2659:30: <Offset trace>
2657.                 if (v->pq >= 9 && v->overlap) {
2658.                     if (v->rangeredfrm)
2659.                         for (j = 0; j < 64; j++)
                                   ^
2660.                             s->block[k][j] <<= 1;
2661.                     s->idsp.put_signed_pixels_clamped(s->block[k], dst[k],

libavcodec/vc1_block.c:2659:30: Assignment
2657.                 if (v->pq >= 9 && v->overlap) {
2658.                     if (v->rangeredfrm)
2659.                         for (j = 0; j < 64; j++)
                                   ^
2660.                             s->block[k][j] <<= 1;
2661.                     s->idsp.put_signed_pixels_clamped(s->block[k], dst[k],

libavcodec/vc1_block.c:2652:17: <Length trace>
2650.                 cbp |= val << (5 - k);
2651. 
2652.                 vc1_decode_i_block(v, s->block[k], k, val, (k < 4) ? v->codingset : v->codingset2);
                      ^
2653. 
2654.                 if (k > 3 && (s->avctx->flags & AV_CODEC_FLAG_GRAY))

libavcodec/vc1_block.c:2652:17: Call
2650.                 cbp |= val << (5 - k);
2651. 
2652.                 vc1_decode_i_block(v, s->block[k], k, val, (k < 4) ? v->codingset : v->codingset2);
                      ^
2653. 
2654.                 if (k > 3 && (s->avctx->flags & AV_CODEC_FLAG_GRAY))

libavcodec/vc1_block.c:592:1: Parameter `*block`
  590.  * @param codingset set of VLC to decode data
  591.  */
  592. static int vc1_decode_i_block(VC1Context *v, int16_t block[64], int n,
       ^
  593.                               int coded, int codingset)
  594. {

libavcodec/vc1_block.c:2660:29: Array access: Offset: [0, 63] Size: 2
2658.                     if (v->rangeredfrm)
2659.                         for (j = 0; j < 64; j++)
2660.                             s->block[k][j] <<= 1;
                                  ^
2661.                     s->idsp.put_signed_pixels_clamped(s->block[k], dst[k],
2662.                                                       k & 4 ? s->uvlinesize
