Spawned zombie subprocesses not reaped

The child watch source attached to thread context didn't work due to the release of it's main loop and context outside. So we attach the source to the global default main context to make it work and avoid zombies.

polkit.spec

@@ -6,7 +6,7 @@
 Summary: An authorization framework
 Name: polkit
 Version: 0.115
-Release: 3%{?dist}
+Release: 4%{?dist}
 License: LGPLv2+
 URL: http://www.freedesktop.org/wiki/Software/polkit
 Source0: http://www.freedesktop.org/software/polkit/releases/%{name}-%{version}.tar.gz
@@ -16,6 +16,7 @@ Group: System Environment/Libraries
 Patch1: polkitagentlistener-freed-server-returned.patch
 Patch2: pkttyagent-rescue-target-error-msg.patch
 Patch3: bus-conn-msg-ssh.patch
+Patch4: spawning-zombie-processes.patch
 
 
 BuildRequires: gcc-c++
@@ -181,6 +182,9 @@ exit 0
 %{_libdir}/girepository-1.0/*.typelib
 
 %changelog
+* Mon Aug 13 2018 Jan Rybar <jrybar@redhat.com> - 0.115-4
+- Leaking zombie processess started by rules
+
 * Fri Jul 20 2018 Jan Rybar <jrybar@redhat.com> - 0.115-3
 - Warning raised by polkit when disconnected from ssh
 - polkitagentlistener: resource leak - pointer to 'server'

spawning-zombie-processes.patch

@@ -0,0 +1,13 @@
+diff -up ./src/polkitbackend/polkitbackendjsauthority.cpp.ori ./src/polkitbackend/polkitbackendjsauthority.cpp
+--- ./src/polkitbackend/polkitbackendjsauthority.cpp.ori	2018-04-03 22:57:57.000000000 +0200
++++ ./src/polkitbackend/polkitbackendjsauthority.cpp	2018-08-14 16:47:48.416993302 +0200
+@@ -1595,7 +1595,8 @@ utils_spawn_data_free (UtilsSpawnData *d
+                              (GSourceFunc) utils_child_watch_from_release_cb,
+                              source,
+                              (GDestroyNotify) g_source_destroy);
+-      g_source_attach (source, data->main_context);
++      /* attach source to the global default main context */
++      g_source_attach (source, NULL);
+       g_source_unref (source);
+       data->child_pid = 0;
+     }