Prevent buffer overflow in QXcbWindow.

Thanks to Janne Kulmala for noticing this and informing about the fix.

Task-number: QTBUG-27123
Change-Id: Idd3cfd74fb7be277b6d805446aea5784b8fdf2f6
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>

diff --git a/src/plugins/platforms/xcb/qxcbwindow.cpp b/src/plugins/platforms/xcb/qxcbwindow.cpp
index e1e8c9e..53bf9f6 100644 (file)
--- a/src/plugins/platforms/xcb/qxcbwindow.cpp
+++ b/src/plugins/platforms/xcb/qxcbwindow.cpp
@@ -306,7 +306,7 @@ void QXcbWindow::create()
 
     propagateSizeHints();
 
-    xcb_atom_t properties[4];
+    xcb_atom_t properties[5];
     int propertyCount = 0;
     properties[propertyCount++] = atom(QXcbAtom::WM_DELETE_WINDOW);
     properties[propertyCount++] = atom(QXcbAtom::WM_TAKE_FOCUS);