libavcodec/vc1dec.c:4533: error: Buffer Overrun L2
  Offset: [0, 63] Size: 2.

libavcodec/vc1dec.c:4532:30: <Offset trace>
4530.                 if (v->pq >= 9 && v->overlap) {
4531.                     if (v->rangeredfrm)
4532.                         for (j = 0; j < 64; j++)
                                   ^
4533.                             s->block[k][j] <<= 1;
4534.                     s->dsp.put_signed_pixels_clamped(s->block[k], dst[k], k & 4 ? s->uvlinesize : s->linesize);

libavcodec/vc1dec.c:4532:30: Assignment
4530.                 if (v->pq >= 9 && v->overlap) {
4531.                     if (v->rangeredfrm)
4532.                         for (j = 0; j < 64; j++)
                                   ^
4533.                             s->block[k][j] <<= 1;
4534.                     s->dsp.put_signed_pixels_clamped(s->block[k], dst[k], k & 4 ? s->uvlinesize : s->linesize);

libavcodec/vc1dec.c:4525:17: <Length trace>
4523.                 cbp |= val << (5 - k);
4524. 
4525.                 vc1_decode_i_block(v, s->block[k], k, val, (k < 4) ? v->codingset : v->codingset2);
                      ^
4526. 
4527.                 if (k > 3 && (s->flags & CODEC_FLAG_GRAY))

libavcodec/vc1dec.c:4525:17: Call
4523.                 cbp |= val << (5 - k);
4524. 
4525.                 vc1_decode_i_block(v, s->block[k], k, val, (k < 4) ? v->codingset : v->codingset2);
                      ^
4526. 
4527.                 if (k > 3 && (s->flags & CODEC_FLAG_GRAY))

libavcodec/vc1dec.c:2688:1: Parameter `*block`
  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:4533:29: Array access: Offset: [0, 63] Size: 2
4531.                     if (v->rangeredfrm)
4532.                         for (j = 0; j < 64; j++)
4533.                             s->block[k][j] <<= 1;
                                  ^
4534.                     s->dsp.put_signed_pixels_clamped(s->block[k], dst[k], k & 4 ? s->uvlinesize : s->linesize);
4535.                 } else {
