diff --git a/Fix-intermediate-overflow-in-op_pcm_total.patch b/Fix-intermediate-overflow-in-op_pcm_total.patch
new file mode 100644
index 0000000..cb98765
--- /dev/null
+++ b/Fix-intermediate-overflow-in-op_pcm_total.patch
@@ -0,0 +1,32 @@
+From 82adfb611d2c8c7f070297210c2b9854490887e5 Mon Sep 17 00:00:00 2001
+From: "Timothy B. Terriberry" <tterribe@xiph.org>
+Date: Tue, 15 Dec 2020 16:23:16 -0800
+Subject: [PATCH] Fix intermediate overflow in op_pcm_total().
+
+Although link enumeration ensures the return value is in range, the
+ order of operations allows the intermediate value pcm_total+diff
+ to overflow the range of a 64-bit int.
+Add parentheses to ensure this does not happen.
+Thanks to Felcia Lim for the report.
+
+Fixes #2330
+---
+ src/opusfile.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/opusfile.c b/src/opusfile.c
+index 5bf9f91..144e02c 100644
+--- a/src/opusfile.c
++++ b/src/opusfile.c
+@@ -1753,7 +1753,7 @@ ogg_int64_t op_pcm_total(const OggOpusFile *_of,int _li){
+   }
+   OP_ALWAYS_TRUE(!op_granpos_diff(&diff,
+    links[_li].pcm_end,links[_li].pcm_start));
+-  return pcm_total+diff-links[_li].head.pre_skip;
++  return pcm_total+(diff-links[_li].head.pre_skip);
+ }
+ 
+ const OpusHead *op_head(const OggOpusFile *_of,int _li){
+-- 
+2.27.0
+
diff --git a/opusfile.spec b/opusfile.spec
index 5fd18cc..fb22683 100644
--- a/opusfile.spec
+++ b/opusfile.spec
@@ -1,6 +1,6 @@
 Name:          opusfile
 Version:       0.11
-Release:       5
+Release:       6
 Summary:       A high-level API provides seeking, decode, and playback of Opus streams
 License:       BSD
 URL:           http://www.opus-codec.org/
@@ -8,6 +8,7 @@ Source0:       http://downloads.xiph.org/releases/opus/%{name}-%{version}.tar.gz
 Patch0000:     0001-fix-MemorySanitizer-use-of-uninitialized-value.patch
 Patch0001:     Fix-short-circuit-test-when-seeking-in-short-files.patch
 Patch0002:     fix-left-shift.patch
+Patch0003:     Fix-intermediate-overflow-in-op_pcm_total.patch
 
 BuildRequires: libogg-devel openssl-devel opus-devel
 
@@ -52,6 +53,9 @@ Development package for opusfile package.
 %{_libdir}/{libopusfile.so,libopusurl.so}
 
 %changelog
+* Wed Dec 22 2021 xu_ping <xuping33@huawei.com> -  0.11-6
+- Fix intermediate overflow in op_pcm_total
+
 * Tue Dec 14 2021 caodongxia <caodongxia@huawei.com> -  0.11-5
 - Fix left shift