diff -Nru ocserv-0.12.2/debian/changelog ocserv-0.12.2/debian/changelog
--- ocserv-0.12.2/debian/changelog	2019-02-21 04:09:36.000000000 +0800
+++ ocserv-0.12.2/debian/changelog	2019-04-13 15:00:59.000000000 +0800
@@ -1,3 +1,10 @@
+ocserv (0.12.2-3) unstable; urgency=medium
+
+  * d/patches: fix ocserv-worker segfault
+    - 0003-Fix-the-bug-of-ocserv-worker-segfault-at-0-ip-b76d67.patch
+
+ -- Aron Xu <aron@debian.org>  Sat, 13 Apr 2019 15:00:59 +0800
+
 ocserv (0.12.2-2) unstable; urgency=medium
 
   * d/patches: upstream patch for AC-DTLS12 and stability with
diff -Nru ocserv-0.12.2/debian/patches/0003-Fix-the-bug-of-ocserv-worker-segfault-at-0-ip-b76d67.patch ocserv-0.12.2/debian/patches/0003-Fix-the-bug-of-ocserv-worker-segfault-at-0-ip-b76d67.patch
--- ocserv-0.12.2/debian/patches/0003-Fix-the-bug-of-ocserv-worker-segfault-at-0-ip-b76d67.patch	1970-01-01 08:00:00.000000000 +0800
+++ ocserv-0.12.2/debian/patches/0003-Fix-the-bug-of-ocserv-worker-segfault-at-0-ip-b76d67.patch	2019-04-13 14:59:10.000000000 +0800
@@ -0,0 +1,32 @@
+From d3cb2e8f53eb36ae007c6dd5cfa6a8455d741b5e Mon Sep 17 00:00:00 2001
+From: Frank Huang <chuang213@gmail.com>
+Date: Sun, 17 Feb 2019 08:12:42 +0000
+Subject: [PATCH 09/15] Fix the bug of "ocserv-worker: segfault at 0 ip
+ b76d6747 sp bf851c70", https://gitlab.com/openconnect/ocserv/issues/197
+
+It must be some caller does not add extra size for null at the end
+
+Signed-off-by: Frank Huang <chuang213@gmail.com>
+---
+ src/str.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/str.c b/src/str.c
+index c95c54f6..91d955bf 100644
+--- a/src/str.c
++++ b/src/str.c
+@@ -103,9 +103,9 @@ int str_append_size(str_st * dest, size_t data_size)
+  */
+ int str_append_data(str_st * dest, const void *data, size_t data_size)
+ {
+-int ret;
++    int ret;
+ 
+-	ret = str_append_size(dest, data_size);
++	ret = str_append_size(dest, data_size+1);
+ 	if (ret < 0)
+ 		return ret;
+ 	
+-- 
+2.11.0
+
diff -Nru ocserv-0.12.2/debian/patches/series ocserv-0.12.2/debian/patches/series
--- ocserv-0.12.2/debian/patches/series	2019-02-21 04:08:03.000000000 +0800
+++ ocserv-0.12.2/debian/patches/series	2019-04-13 15:00:41.000000000 +0800
@@ -1,3 +1,4 @@
 legacy_pidfile.patch
 0001-worker-allow-negotiating-AC-DTLS12-with-openconnect.patch
 0002-worker-added-safety-check-for-selected-DTLS-ciphersu.patch
+0003-Fix-the-bug-of-ocserv-worker-segfault-at-0-ip-b76d67.patch