From ce55667b62e77902c18d9a2a62e5e323516159d7 Mon Sep 17 00:00:00 2001
From: Andy Shaw <andy.shaw@qt.io>
Date: Fri, 21 Feb 2020 15:05:09 +0100
Subject: [PATCH] Set the size of the buffer so it is big enough to hold the
 contents

This will prevent a crash later on when it tries to assign to an index
in a QString that has not been allocated.

Fixes: QTBUG-81950
Change-Id: Ia0b5648a18f15594eeca07d234bedadcfeb266ac
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
---
 src/widgets/widgets/qlcdnumber.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/widgets/widgets/qlcdnumber.cpp b/src/widgets/widgets/qlcdnumber.cpp
index 282714843c..8ac7040ea7 100644
--- a/src/widgets/widgets/qlcdnumber.cpp
+++ b/src/widgets/widgets/qlcdnumber.cpp
@@ -713,7 +713,7 @@ void QLCDNumber::paintEvent(QPaintEvent *)
 void QLCDNumberPrivate::internalSetString(const QString& s)
 {
     Q_Q(QLCDNumber);
-    QString buffer;
+    QString buffer(ndigits, QChar());
     int i;
     int len = s.length();
     QBitArray newPoints(ndigits);