diff --git a/2b32735a-virCommand-env.patch b/2b32735a-virCommand-env.patch
new file mode 100644
index 0000000..d30eeb6
--- /dev/null
+++ b/2b32735a-virCommand-env.patch
@@ -0,0 +1,38 @@
+commit 2b32735af480055e27400068d27364d521071117
+Author: Richard W.M. Jones <rjones@redhat.com>
+Date:   Mon Sep 24 17:35:47 2012 +0100
+
+    command: Change virCommandAddEnv so it replaces existing environment variables.
+
+Index: libvirt-0.10.2/src/util/command.c
+===================================================================
+--- libvirt-0.10.2.orig/src/util/command.c
++++ libvirt-0.10.2/src/util/command.c
+@@ -985,11 +985,26 @@ virCommandNonblockingFDs(virCommandPtr c
+ }
+ 
+ /* Add an environment variable to the cmd->env list.  'env' is a
+- * string like "name=value".
++ * string like "name=value".  If the named environment variable is
++ * already set, then it is replaced in the list.
+  */
+ static inline void
+ virCommandAddEnv(virCommandPtr cmd, char *env)
+ {
++    size_t namelen;
++    size_t i;
++
++    /* Search for the name in the existing environment. */
++    namelen = strcspn(env, "=");
++    for (i = 0; i < cmd->nenv; ++i) {
++        /* + 1 because we want to match the '=' character too. */
++        if (STREQLEN(cmd->env[i], env, namelen + 1)) {
++            VIR_FREE(cmd->env[i]);
++            cmd->env[i] = env;
++            return;
++        }
++    }
++
+     /* Arg plus trailing NULL. */
+     if (VIR_RESIZE_N(cmd->env, cmd->maxenv, cmd->nenv, 1 + 1) < 0) {
+         VIR_FREE(env);
diff --git a/f644361b-virCommand-env.patch b/f644361b-virCommand-env.patch
new file mode 100644
index 0000000..628a51d
--- /dev/null
+++ b/f644361b-virCommand-env.patch
@@ -0,0 +1,88 @@
+commit f644361b1eeb78fd59be4cd7ec85567bbf300506
+Author: Richard W.M. Jones <rjones@redhat.com>
+Date:   Mon Sep 24 17:30:18 2012 +0100
+
+    command: Move environ-adding code to common function virCommandAddEnv.
+    
+    This is just code motion.  The semantics of the code should be
+    identical after this change.
+
+Index: libvirt-0.10.2/src/util/command.c
+===================================================================
+--- libvirt-0.10.2.orig/src/util/command.c
++++ libvirt-0.10.2/src/util/command.c
+@@ -984,6 +984,22 @@ virCommandNonblockingFDs(virCommandPtr c
+     cmd->flags |= VIR_EXEC_NONBLOCK;
+ }
+ 
++/* Add an environment variable to the cmd->env list.  'env' is a
++ * string like "name=value".
++ */
++static inline void
++virCommandAddEnv(virCommandPtr cmd, char *env)
++{
++    /* Arg plus trailing NULL. */
++    if (VIR_RESIZE_N(cmd->env, cmd->maxenv, cmd->nenv, 1 + 1) < 0) {
++        VIR_FREE(env);
++        cmd->has_error = ENOMEM;
++        return;
++    }
++
++    cmd->env[cmd->nenv++] = env;
++}
++
+ /**
+  * virCommandAddEnvFormat:
+  * @cmd: the command to modify
+@@ -1009,14 +1025,7 @@ virCommandAddEnvFormat(virCommandPtr cmd
+     }
+     va_end(list);
+ 
+-    /* Arg plus trailing NULL. */
+-    if (VIR_RESIZE_N(cmd->env, cmd->maxenv, cmd->nenv, 1 + 1) < 0) {
+-        VIR_FREE(env);
+-        cmd->has_error = ENOMEM;
+-        return;
+-    }
+-
+-    cmd->env[cmd->nenv++] = env;
++    virCommandAddEnv(cmd, env);
+ }
+ 
+ /**
+@@ -1056,14 +1065,7 @@ virCommandAddEnvString(virCommandPtr cmd
+         return;
+     }
+ 
+-    /* env plus trailing NULL */
+-    if (VIR_RESIZE_N(cmd->env, cmd->maxenv, cmd->nenv, 1 + 1) < 0) {
+-        VIR_FREE(env);
+-        cmd->has_error = ENOMEM;
+-        return;
+-    }
+-
+-    cmd->env[cmd->nenv++] = env;
++    virCommandAddEnv(cmd, env);
+ }
+ 
+ 
+@@ -1084,9 +1086,7 @@ virCommandAddEnvBuffer(virCommandPtr cmd
+         return;
+     }
+ 
+-    /* env plus trailing NULL. */
+-    if (virBufferError(buf) ||
+-        VIR_RESIZE_N(cmd->env, cmd->maxenv, cmd->nenv, 1 + 1) < 0) {
++    if (virBufferError(buf)) {
+         cmd->has_error = ENOMEM;
+         virBufferFreeAndReset(buf);
+         return;
+@@ -1096,7 +1096,7 @@ virCommandAddEnvBuffer(virCommandPtr cmd
+         return;
+     }
+ 
+-    cmd->env[cmd->nenv++] = virBufferContentAndReset(buf);
++    virCommandAddEnv(cmd, virBufferContentAndReset(buf));
+ }
+ 
+ 
diff --git a/libvirt.changes b/libvirt.changes
index 333fdfc..d7e3e34 100644
--- a/libvirt.changes
+++ b/libvirt.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Thu Oct 11 08:34:36 MDT 2012 - jfehlig@suse.com
+
+- Add upstream patches to support latest libguestfs
+  f644361b-virCommand-env.patch
+  2b32735a-virCommand-env.patch
+
 -------------------------------------------------------------------
 Thu Sep 27 10:35:25 MDT 2012 - jfehlig@suse.com
 
diff --git a/libvirt.spec b/libvirt.spec
index a31fcdb..7844cf6 100644
--- a/libvirt.spec
+++ b/libvirt.spec
@@ -413,6 +413,8 @@ Source99:       baselibs.conf
 # Upstream patches
 Patch0:         371ddc98-xen-sysctl-9.patch
 Patch1:         416eca18-xenstore-header-fix.patch
+Patch2:         f644361b-virCommand-env.patch
+Patch3:         2b32735a-virCommand-env.patch
 # Need to go upstream
 Patch100:       xen-name-for-devid.patch
 Patch101:       clone.patch
@@ -550,6 +552,8 @@ Authors:
 %setup -q
 %patch0 -p1
 %patch1 -p1
+%patch2 -p1
+%patch3 -p1
 %patch100 -p1
 %patch101
 %patch102 -p1