libavcodec/snow.c:3606: error: Buffer Overrun L3
  Offset added: 4 Size: [0, +oo].

libavcodec/snow.c:3553:1: <Length trace>
3551. }
3552. 
3553. static int decode_header(SnowContext *s){
      ^
3554.     int plane_index;
3555.     uint8_t kstate[32];

libavcodec/snow.c:3553:1: Parameter `s->plane[*].hcoeff[*]`
3551. }
3552. 
3553. static int decode_header(SnowContext *s){
      ^
3554.     int plane_index;
3555.     uint8_t kstate[32];

libavcodec/snow.c:3606:13: Array access: Offset added: 4 Size: [0, +oo]
3604.             s->plane[2].diag_mc= s->plane[1].diag_mc;
3605.             s->plane[2].htaps  = s->plane[1].htaps;
3606.             memcpy(s->plane[2].hcoeff, s->plane[1].hcoeff, sizeof(s->plane[1].hcoeff));
                  ^
3607.         }
3608.         if(get_rac(&s->c, s->header_state)){
