https://trac.xiph.org/changeset/18151

--- lib/floor1.c	2010-10-23 04:31:21.000000000 +0000
+++ lib/floor1.c.oden	2012-04-03 09:48:31.000000000 +0000
@@ -167,6 +167,7 @@ static vorbis_info_floor *floor1_unpack
 
   for(j=0,k=0;j<info->partitions;j++){
     count+=info->class_dim[info->partitionclass[j]];
+    if(count>VIF_POSIT) goto err_out;
     for(;k<count;k++){
       int t=info->postlist[k+2]=oggpack_read(opb,rangebits);
       if(t<0 || t>=(1<<rangebits))