2 files changed, 2 insertions, 1 deletions
diff --git a/src/corelib/io/qurl.cpp b/src/corelib/io/qurl.cpp
index 74e5f74..a131d6c 100644
--- a/src/corelib/io/qurl.cpp
+++ b/src/corelib/io/qurl.cpp
@@ -5932,7 +5932,7 @@ void QUrl::detach()
 */
 bool QUrl::isDetached() const
 {
-    return d && d->ref == 1;
+    return !d || d->ref == 1;
 }
 
 
diff --git a/src/corelib/tools/qbytearray.cpp b/src/corelib/tools/qbytearray.cpp
index 4049925..556093f 100644
--- a/src/corelib/tools/qbytearray.cpp
+++ b/src/corelib/tools/qbytearray.cpp
@@ -561,6 +561,7 @@ QByteArray qUncompress(const uchar* data, int nbytes)
             d->ref = 1;
             d->alloc = d->size = len;
             d->data = d->array;
+            d->array[len] = 0;
 
             return QByteArray(d.take(), 0, 0);