diff --git a/poky/bitbake/bin/bitbake-diffsigs b/poky/bitbake/bin/bitbake-diffsigs
index 6646dcc..cf4cc70 100755
--- a/poky/bitbake/bin/bitbake-diffsigs
+++ b/poky/bitbake/bin/bitbake-diffsigs
@@ -60,7 +60,7 @@
 
     if sig1 and sig2:
         sigfiles = find_siginfo(bbhandler, pn, taskname, [sig1, sig2])
-        if len(sigfiles) == 0:
+        if not sigfiles:
             logger.error('No sigdata files found matching %s %s matching either %s or %s' % (pn, taskname, sig1, sig2))
             sys.exit(1)
         elif not sig1 in sigfiles:
@@ -86,7 +86,7 @@
     hashfiles = find_siginfo(tinfoil, key, None, hashes)
 
     recout = []
-    if len(hashfiles) == 0:
+    if not hashfiles:
         recout.append("Unable to find matching sigdata for %s with hashes %s or %s" % (key, hash1, hash2))
     elif not hash1 in hashfiles:
         recout.append("Unable to find matching sigdata for %s with hash %s" % (key, hash1))
diff --git a/poky/bitbake/bin/bitbake-worker b/poky/bitbake/bin/bitbake-worker
index bf96207..3aaf3c2 100755
--- a/poky/bitbake/bin/bitbake-worker
+++ b/poky/bitbake/bin/bitbake-worker
@@ -152,6 +152,10 @@
     fakeenv = {}
     umask = None
 
+    uid = os.getuid()
+    gid = os.getgid()
+
+
     taskdep = workerdata["taskdeps"][fn]
     if 'umask' in taskdep and taskname in taskdep['umask']:
         umask = taskdep['umask'][taskname]
@@ -257,6 +261,10 @@
 
                 bb.utils.set_process_name("%s:%s" % (the_data.getVar("PN"), taskname.replace("do_", "")))
 
+                if not the_data.getVarFlag(taskname, 'network', False):
+                    logger.debug("Attempting to disable network")
+                    bb.utils.disable_network(uid, gid)
+
                 # exported_vars() returns a generator which *cannot* be passed to os.environ.update() 
                 # successfully. We also need to unset anything from the environment which shouldn't be there 
                 exports = bb.data.exported_vars(the_data)