1 files changed, 1 insertions, 0 deletions
diff --git a/floor0.c b/floor0.c
index 9f3ef56..964383e 100644
--- a/floor0.c
+++ b/floor0.c
@@ -328,6 +328,7 @@ static vorbis_info_floor *floor0_unpack (vorbis_info *vi,oggpack_buffer *opb){
     info->books[j]=oggpack_read(opb,8);
     if(info->books[j]<0 || info->books[j]>=ci->books)goto err_out;
     if(ci->book_param[info->books[j]]->maptype==0)goto err_out;
+    if(ci->book_param[info->books[j]]->dim<1)goto err_out;
   }
   return(info);