libavcodec/vc1dec.c:4279: error: Buffer Overrun L2
  Offset: [0, 63] Size: 2.

libavcodec/vc1dec.c:4278:22: <Offset trace>
4276.             v->vc1dsp.vc1_inv_trans_8x8(s->block[i]);
4277.             if (v->rangeredfrm)
4278.                 for (j = 0; j < 64; j++)
                           ^
4279.                     s->block[i][j] <<= 1;
4280.             s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize);

libavcodec/vc1dec.c:4278:22: Assignment
4276.             v->vc1dsp.vc1_inv_trans_8x8(s->block[i]);
4277.             if (v->rangeredfrm)
4278.                 for (j = 0; j < 64; j++)
                           ^
4279.                     s->block[i][j] <<= 1;
4280.             s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize);

libavcodec/vc1dec.c:4272:13: <Length trace>
4270.                 v->c_avail = v->mb_type[0][s->block_index[i] - 1];
4271. 
4272.             vc1_decode_intra_block(v, s->block[i], i, val, mquant,
                  ^
4273.                                    (i & 4) ? v->codingset2 : v->codingset);
4274.             if ((i>3) && (s->flags & CODEC_FLAG_GRAY))

libavcodec/vc1dec.c:4272:13: Call
4270.                 v->c_avail = v->mb_type[0][s->block_index[i] - 1];
4271. 
4272.             vc1_decode_intra_block(v, s->block[i], i, val, mquant,
                  ^
4273.                                    (i & 4) ? v->codingset2 : v->codingset);
4274.             if ((i>3) && (s->flags & CODEC_FLAG_GRAY))

libavcodec/vc1dec.c:3057:1: Parameter `*block`
  3055.  * @param codingset set of VLC to decode data
  3056.  */
  3057. static int vc1_decode_intra_block(VC1Context *v, DCTELEM block[64], int n,
        ^
  3058.                                   int coded, int mquant, int codingset)
  3059. {

libavcodec/vc1dec.c:4279:21: Array access: Offset: [0, 63] Size: 2
4277.             if (v->rangeredfrm)
4278.                 for (j = 0; j < 64; j++)
4279.                     s->block[i][j] <<= 1;
                          ^
4280.             s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize);
4281.         } else if (val) {
