diff --git a/numactl-2.0.3-nodes_allowed_list_obo.patch b/numactl-2.0.3-nodes_allowed_list_obo.patch
new file mode 100644
index 0000000..469a136
--- /dev/null
+++ b/numactl-2.0.3-nodes_allowed_list_obo.patch
@@ -0,0 +1,12 @@
+diff -up numactl-2.0.3/libnuma.c.orig numactl-2.0.3/libnuma.c
+--- numactl-2.0.3/libnuma.c.orig	2009-08-10 07:02:12.000000000 -0400
++++ numactl-2.0.3/libnuma.c	2009-08-10 07:02:39.000000000 -0400
+@@ -464,7 +464,7 @@ set_thread_constraints(void)
+ 			nodes_allowed_list = malloc(strlen(buffer)-18);
+ 			strncpy(nodes_allowed_list, buffer + 19,
+ 				strlen(buffer) - 19);
+-			nodes_allowed_list[strlen(nodes_allowed_list)-1] = '\0';
++			nodes_allowed_list[strlen(buffer)-19] = '\0';
+ 		}
+ 	}
+ 	fclose(f);
diff --git a/numactl.spec b/numactl.spec
index e327b46..5f4b1e0 100644
--- a/numactl.spec
+++ b/numactl.spec
@@ -1,7 +1,7 @@
 Name:		numactl
 Summary:	Library for tuning for Non Uniform Memory Access machines
 Version:	2.0.3
-Release:	5%{dist} 
+Release:	6%{dist} 
 License:	LGPLv2/GPLv2
 Group: 		System Environment/Base
 URL:		ftp://oss.sgi.com/www/projects/libnuma/download
@@ -10,6 +10,7 @@ Buildroot:	%{_tmppath}/%{name}-buildroot
 
 Patch0: numactl-2.0.3-rc3-distance_parsing.patch
 Patch1: numactl-2.0.3-rc3-no-nodes-warning.patch
+Patch2: numactl-2.0.3-nodes_allowed_list_obo.patch
 
 ExcludeArch: s390 s390x
 
@@ -30,6 +31,7 @@ Provides development headers for numa library calls
 %setup -q -n %{name}-%{version}
 %patch0 -p1
 %patch1 -p1
+%patch2 -p1
 
 %build
 make CFLAGS="$RPM_OPT_FLAGS -I."
@@ -71,6 +73,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_mandir}/man3/*.3*
 
 %changelog
+* Mon Aug 10 2009 Neil Horman <nhorman@redhat.com> - 2.0.3-6
+- Fix obo in nodes_allowed_list strncpy (bz 516223)
+
 * Sat Jul 25 2009 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 2.0.3-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_12_Mass_Rebuild