3 files changed, 6 insertions, 3 deletions
diff --git a/src/gui/image/qpixmap_blitter.cpp b/src/gui/image/qpixmap_blitter.cpp
index de32327071..d694352fc1 100644
--- a/src/gui/image/qpixmap_blitter.cpp
+++ b/src/gui/image/qpixmap_blitter.cpp
@@ -41,6 +41,7 @@
 
 #include <qpainter.h>
 #include <qimage.h>
+#include <qrandom.h>
 #include <qscreen.h>
 
 #include <private/qguiapplication_p.h>
@@ -252,7 +253,7 @@ QImage *QBlittablePlatformPixmap::overlay()
         m_rasterOverlay->size() != QSize(w,h)){
         m_rasterOverlay = new QImage(w,h,QImage::Format_ARGB32_Premultiplied);
         m_rasterOverlay->fill(0x00000000);
-        uint color = (qrand() % 11)+7;
+        uint color = QRandomGenerator::global()->bounded(11)+7;
         m_overlayColor = QColor(Qt::GlobalColor(color));
         m_overlayColor.setAlpha(0x88);
 
diff --git a/src/gui/opengl/qopenglgradientcache.cpp b/src/gui/opengl/qopenglgradientcache.cpp
index 58dcbed50a..3aa4c0d2e6 100644
--- a/src/gui/opengl/qopenglgradientcache.cpp
+++ b/src/gui/opengl/qopenglgradientcache.cpp
@@ -42,6 +42,7 @@
 #include <private/qopenglcontext_p.h>
 #include <private/qrgba64_p.h>
 #include <QtCore/qmutex.h>
+#include <QtCore/qrandom.h>
 #include "qopenglfunctions.h"
 #include "qopenglextensions_p.h"
 
@@ -137,7 +138,7 @@ GLuint QOpenGL2GradientCache::addCacheElement(quint64 hash_val, const QGradient
 {
     QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions();
     if (cache.size() == maxCacheSize()) {
-        int elem_to_remove = qrand() % maxCacheSize();
+        int elem_to_remove = QRandomGenerator::global()->bounded(maxCacheSize());
         quint64 key = cache.keys()[elem_to_remove];
 
         // need to call glDeleteTextures on each removed cache entry:
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp
index 68554c6579..d0d948bbb7 100644
--- a/src/gui/painting/qpaintengine_raster.cpp
+++ b/src/gui/painting/qpaintengine_raster.cpp
@@ -50,6 +50,7 @@
 #include <qdebug.h>
 #include <qbitmap.h>
 #include <qmath.h>
+#include <qrandom.h>
 
 //   #include <private/qdatabuffer_p.h>
 //   #include <private/qpainter_p.h>
@@ -4229,7 +4230,7 @@ protected:
     QSharedPointer<const CacheInfo> addCacheElement(quint64 hash_val, const QGradient &gradient, int opacity) {
         if (cache.size() == maxCacheSize()) {
             // may remove more than 1, but OK
-            cache.erase(cache.begin() + (qrand() % maxCacheSize()));
+            cache.erase(cache.begin() + QRandomGenerator::global()->bounded(maxCacheSize()));
         }
         auto cache_entry = QSharedPointer<CacheInfo>::create(gradient.stops(), opacity, gradient.interpolationMode());
         generateGradientColorTable(gradient, cache_entry->buffer64, paletteSize(), opacity);