From: Lars Knoll <lars.knoll@digia.com>
Date: Mon, 4 Aug 2014 10:46:50 +0000 (+0200)
Subject: Fix uninitialized memory read
X-Git-Tag: v5.3.99+beta1~214
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5e504b36a1bc17df09fa28f1a26703023466f440;p=platform%2Fupstream%2Fqtdeclarative.git

Fix uninitialized memory read

Explicitly initialize the markBit to 0. This is important
for stack based execution contexts that can have uninitialized
data in the bit.

Change-Id: I50f1286949f1b4732e3a31b83b238bc7dcf7c7a7
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
---

diff --git a/src/qml/jsruntime/qv4managed_p.h b/src/qml/jsruntime/qv4managed_p.h
index b88531d..cc58983 100644
--- a/src/qml/jsruntime/qv4managed_p.h
+++ b/src/qml/jsruntime/qv4managed_p.h
@@ -191,6 +191,7 @@ struct Q_QML_PRIVATE_EXPORT Managed
         Data() {}
         Data(InternalClass *internal)
             : internalClass(internal)
+            , markBit(0)
             , inUse(1)
             , extensible(1)
         {