Port the rest of r16222 from libvorbis.

Commit additional hardening to setup packet decode.


git-svn-id: https://svn.xiph.org/trunk/Tremor@17525 0101bb08-14d6-0310-b084-bc0e0c8e3800

1 files changed, 1 insertions, 0 deletions

diff --git a/codebook.c b/codebook.c
index 7388b1f..b920c01 100644
--- a/codebook.c
+++ b/codebook.c
@@ -100,6 +100,7 @@ int vorbis_staticbook_unpack(oggpack_buffer *opb,static_codebook *s){
     s->q_delta=oggpack_read(opb,32);
     s->q_quant=oggpack_read(opb,4)+1;
     s->q_sequencep=oggpack_read(opb,1);
+    if(s->q_sequencep==-1)goto _eofout;
 
     {
       int quantvals=0;