opus: add patch for CVE-2017-0381

srcpkgs/opus/patches/CVE-2017-0381.patch

@@ -0,0 +1,24 @@
+From 79e8f527b0344b0897a65be35e77f7885bd99409 Mon Sep 17 00:00:00 2001
+From: Felicia Lim <flim@google.com>
+Date: Thu, 28 Jul 2016 15:21:19 +0200
+Subject: [PATCH] Ensure that NLSF cannot be negative when computing a min
+ distance between them
+
+Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
+---
+ silk/NLSF_stabilize.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git silk/NLSF_stabilize.c silk/NLSF_stabilize.c
+index 1fa1ea3..8f3426b 100644
+--- silk/NLSF_stabilize.c
++++ silk/NLSF_stabilize.c
+@@ -130,7 +130,7 @@ void silk_NLSF_stabilize(
+ 
+         /* Keep delta_min distance between the NLSFs */
+         for( i = 1; i < L; i++ )
+-            NLSF_Q15[i] = silk_max_int( NLSF_Q15[i], NLSF_Q15[i-1] + NDeltaMin_Q15[i] );
++            NLSF_Q15[i] = silk_max_int( NLSF_Q15[i], silk_ADD_SAT16( NLSF_Q15[i-1], NDeltaMin_Q15[i] ) );
+ 
+         /* Last NLSF should be no higher than 1 - NDeltaMin[L] */
+         NLSF_Q15[L-1] = silk_min_int( NLSF_Q15[L-1], (1<<15) - NDeltaMin_Q15[L] );

srcpkgs/opus/template

@@ -1,7 +1,7 @@
 # Template file for 'opus'
 pkgname=opus
 version=1.1.3
-revision=1
+revision=2
 build_style=gnu-configure
 configure_args="--enable-float-approx"
 short_desc="Codec designed for interactive speech and audio transmission over the Internet"