diff -Nru tgt-1.0.63/debian/changelog tgt-1.0.63/debian/changelog
--- tgt-1.0.63/debian/changelog	2016-03-30 06:34:21.000000000 +0000
+++ tgt-1.0.63/debian/changelog	2016-04-25 07:15:55.000000000 +0000
@@ -1,3 +1,10 @@
+tgt (1:1.0.63-1ubuntu2) yakkety; urgency=medium
+
+  * debian/patches/util_strtoull_errno.patch by Stas Sergeev
+    - Fix errno handling for number * parsing (LP: #1547060)
+
+ -- Ryan Harper <ryan.harper@canonical.com>  Thu, 21 Apr 2016 09:13:09 -0500
+
 tgt (1:1.0.63-1ubuntu1) xenial; urgency=medium
 
   * Merge from Debian (LP: #1555700). Remaining changes:
diff -Nru tgt-1.0.63/debian/patches/series tgt-1.0.63/debian/patches/series
--- tgt-1.0.63/debian/patches/series	2016-03-30 06:20:59.000000000 +0000
+++ tgt-1.0.63/debian/patches/series	2016-04-25 07:15:44.000000000 +0000
@@ -3,3 +3,4 @@
 use-dpkg-buildflags.patch
 do-not-build-html-manpages.patch
 fix-aio-detection.patch
+util_strtoull_errno.patch
diff -Nru tgt-1.0.63/debian/patches/util_strtoull_errno.patch tgt-1.0.63/debian/patches/util_strtoull_errno.patch
--- tgt-1.0.63/debian/patches/util_strtoull_errno.patch	1970-01-01 00:00:00.000000000 +0000
+++ tgt-1.0.63/debian/patches/util_strtoull_errno.patch	2016-04-25 07:15:44.000000000 +0000
@@ -0,0 +1,37 @@
+Description: fix errno check in util.h preventing numeric arg parsing
+ From 3f3991ee3345f9728928711f6be7a0020568faf6 Mon Sep 17 00:00:00 2001
+ From: Stas Sergeev <stsp@users.sourceforge.net>
+ Date: Thu, 18 Feb 2016 18:35:23 +0300
+ Subject: [PATCH] fix errno check
+
+ errno can only be checked if the return value indicates an error.
+ The result of this bug is the following:
+
+  ./tgtd -d 1
+  -d argument value '1' invalid
+  Try `tgtd --help' for more information.
+
+  As can be seen, it rejects the valid parameter because errno just
+  happens to be non-zero.
+Author: Stas Sergeev <stsp@users.sourceforge.net>
+Origin: https://github.com/fujita/tgt/pull/18/commits/3f3991ee3345f9728928711f6be7a0020568faf6
+Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/tgt/+bug/1547060
+Last-Update: 20160421
+
+---
+ usr/util.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/usr/util.h b/usr/util.h
+index 0e34c35..019ff1c 100644
+--- a/usr/util.h
++++ b/usr/util.h
+@@ -148,7 +148,7 @@ struct signalfd_siginfo {
+ 	unsigned long long ull_val;     		\
+ 	ull_val = strtoull(str, &ptr, 0);       	\
+ 	val = (typeof(val)) ull_val;    		\
+-	if (errno || ptr == str)			\
++	if (ull_val == ULONG_MAX || ptr == str)		\
+ 		ret = EINVAL;   			\
+ 	else if (val != ull_val)			\
+ 		ret = ERANGE;   			\