new blfs: media-libs/libvorbis-1.3.7

media-libs/libvorbis-1.3.7/libvorbis-1.3.7-ubsan-shift.patch

@@ -0,0 +1,27 @@
+https://gitlab.xiph.org/xiph/vorbis/-/commit/bb4047de4c05712bf1fd49b9584c360b8e4e0adf
+
+From bb4047de4c05712bf1fd49b9584c360b8e4e0adf Mon Sep 17 00:00:00 2001
+From: Tristan Matthews <tmatth@videolan.org>
+Date: Fri, 14 Jun 2024 11:39:26 -0400
+Subject: [PATCH] sharedbook: cast to unsigned to avoid undefined shift
+
+Fixes #2351
+---
+ lib/sharedbook.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/sharedbook.c b/lib/sharedbook.c
+index 444f42b5..7a98b479 100644
+--- a/lib/sharedbook.c
++++ b/lib/sharedbook.c
+@@ -422,7 +422,7 @@ int vorbis_book_init_decode(codebook *c,const static_codebook *s){
+         long lo=0,hi=0;
+ 
+         for(i=0;i<tabn;i++){
+-          ogg_uint32_t word=i<<(32-c->dec_firsttablen);
++          ogg_uint32_t word=((ogg_uint32_t)i<<(32-c->dec_firsttablen));
+           if(c->dec_firsttable[bitreverse(word)]==0){
+             while((lo+1)<n && c->codelist[lo+1]<=word)lo++;
+             while(    hi<n && word>=(c->codelist[hi]&mask))hi++;
+-- 
+GitLab