diff -Nru libtpms-0.8.0~dev1/debian/changelog libtpms-0.8.0~dev1/debian/changelog
--- libtpms-0.8.0~dev1/debian/changelog	2020-08-08 17:31:09.000000000 +0000
+++ libtpms-0.8.0~dev1/debian/changelog	2020-12-09 19:31:25.000000000 +0000
@@ -1,3 +1,10 @@
+libtpms (0.8.0~dev1-1.2ubuntu1) hirsute; urgency=medium
+
+  * debian/patches/uninitialized-variable.patch: fix issues of variables
+    that may be used before initialization.
+
+ -- Steve Langasek <steve.langasek@ubuntu.com>  Wed, 09 Dec 2020 19:31:25 +0000
+
 libtpms (0.8.0~dev1-1.2) unstable; urgency=medium
 
   *Fix a non-reproducible bug caused by the invalid path (Closes: #964768)
diff -Nru libtpms-0.8.0~dev1/debian/control libtpms-0.8.0~dev1/debian/control
--- libtpms-0.8.0~dev1/debian/control	2020-08-08 17:31:09.000000000 +0000
+++ libtpms-0.8.0~dev1/debian/control	2020-12-09 19:31:18.000000000 +0000
@@ -1,5 +1,6 @@
 Source: libtpms
-Maintainer: Seunghun Han <kkamagui@gmail.com>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Seunghun Han <kkamagui@gmail.com>
 Section: libs
 Priority: optional
 Standards-Version: 4.5.0
diff -Nru libtpms-0.8.0~dev1/debian/patches/series libtpms-0.8.0~dev1/debian/patches/series
--- libtpms-0.8.0~dev1/debian/patches/series	2020-08-08 17:31:09.000000000 +0000
+++ libtpms-0.8.0~dev1/debian/patches/series	2020-12-09 16:57:06.000000000 +0000
@@ -2,3 +2,4 @@
 0002-fix-man-page-longline-typo.patch
 0003-set-man-page-date-to-last-changelog.patch
 0004-fix-ftbfs-bug.patch
+uninitialized-variable.patch
diff -Nru libtpms-0.8.0~dev1/debian/patches/uninitialized-variable.patch libtpms-0.8.0~dev1/debian/patches/uninitialized-variable.patch
--- libtpms-0.8.0~dev1/debian/patches/uninitialized-variable.patch	1970-01-01 00:00:00.000000000 +0000
+++ libtpms-0.8.0~dev1/debian/patches/uninitialized-variable.patch	2020-12-09 19:31:11.000000000 +0000
@@ -0,0 +1,31 @@
+Description: fix issues of variables that may be used before initialization
+ Detected by gcc on Ubuntu/s390x
+Author: Steve Langasek <steve.langasek@ubuntu.com>
+Last-Update: 2020-12-09
+
+Index: libtpms-0.8.0~dev1/src/tpm12/tpm_nvram.c
+===================================================================
+--- libtpms-0.8.0~dev1.orig/src/tpm12/tpm_nvram.c
++++ libtpms-0.8.0~dev1/src/tpm12/tpm_nvram.c
+@@ -1997,7 +1997,7 @@
+     TPM_BOOL			done = FALSE;
+     TPM_BOOL			dir = FALSE;
+     TPM_BOOL			writeAllNV = FALSE;	/* flag to write back NV */
+-    TPM_NV_DATA_SENSITIVE	*d1NvdataSensitive;
++    TPM_NV_DATA_SENSITIVE	*d1NvdataSensitive = NULL;
+     uint32_t			s1Last;
+     TPM_BOOL			physicalPresence;
+     TPM_BOOL			isGPIO = FALSE;
+Index: libtpms-0.8.0~dev1/src/tpm2/Marshal.c
+===================================================================
+--- libtpms-0.8.0~dev1.orig/src/tpm2/Marshal.c
++++ libtpms-0.8.0~dev1/src/tpm2/Marshal.c
+@@ -2219,7 +2219,7 @@
+ TPM2B_CREATION_DATA_Marshal(TPM2B_CREATION_DATA *source, BYTE **buffer, INT32 *size)
+ {
+     UINT16 written = 0;
+-    BYTE *sizePtr;
++    BYTE *sizePtr = NULL;
+ 
+     if (buffer != NULL) {
+ 	sizePtr = *buffer;