libavcodec/vc1dec.c:4399: error: Buffer Overrun L2
  Offset: [0, 63] Size: 2.

libavcodec/vc1dec.c:4398:30: <Offset trace>
4396.                 if (v->pq >= 9 && v->overlap) {
4397.                     if (v->rangeredfrm)
4398.                         for (j = 0; j < 64; j++)
                                   ^
4399.                             s->block[k][j] <<= 1;
4400.                     s->dsp.put_signed_pixels_clamped(s->block[k], dst[k], k & 4 ? s->uvlinesize : s->linesize);

libavcodec/vc1dec.c:4398:30: Assignment
4396.                 if (v->pq >= 9 && v->overlap) {
4397.                     if (v->rangeredfrm)
4398.                         for (j = 0; j < 64; j++)
                                   ^
4399.                             s->block[k][j] <<= 1;
4400.                     s->dsp.put_signed_pixels_clamped(s->block[k], dst[k], k & 4 ? s->uvlinesize : s->linesize);

libavcodec/vc1dec.c:4391:17: <Length trace>
4389.                 cbp |= val << (5 - k);
4390. 
4391.                 vc1_decode_i_block(v, s->block[k], k, val, (k < 4) ? v->codingset : v->codingset2);
                      ^
4392. 
4393.                 if (k > 3 && (s->flags & CODEC_FLAG_GRAY))

libavcodec/vc1dec.c:4391:17: Call
4389.                 cbp |= val << (5 - k);
4390. 
4391.                 vc1_decode_i_block(v, s->block[k], k, val, (k < 4) ? v->codingset : v->codingset2);
                      ^
4392. 
4393.                 if (k > 3 && (s->flags & CODEC_FLAG_GRAY))

libavcodec/vc1dec.c:2541:1: Parameter `*block`
  2539.  * @param codingset set of VLC to decode data
  2540.  */
  2541. static int vc1_decode_i_block(VC1Context *v, int16_t block[64], int n,
        ^
  2542.                               int coded, int codingset)
  2543. {

libavcodec/vc1dec.c:4399:29: Array access: Offset: [0, 63] Size: 2
4397.                     if (v->rangeredfrm)
4398.                         for (j = 0; j < 64; j++)
4399.                             s->block[k][j] <<= 1;
                                  ^
4400.                     s->dsp.put_signed_pixels_clamped(s->block[k], dst[k], k & 4 ? s->uvlinesize : s->linesize);
4401.                 } else {
