From 25d9bf39d9d63710a04a4e8ee7fd89cc234f726b Mon Sep 17 00:00:00 2001
From: Allan Sandfeld Jensen <allan.jensen@qt.io>
Date: Thu, 22 Apr 2021 13:47:21 +0200
Subject: Do not access internal allThreads data unlocked

Change-Id: I54eb67571fff07ffdbf9d2b77c96bb85e3fae5e0
Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit ffb5635c1a34d23d85e3cb42310e14a81fa24f6e)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 src/corelib/thread/qthreadpool.cpp | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src')

diff --git a/src/corelib/thread/qthreadpool.cpp b/src/corelib/thread/qthreadpool.cpp
index 6d258af9df..4aebbcc8cb 100644
--- a/src/corelib/thread/qthreadpool.cpp
+++ b/src/corelib/thread/qthreadpool.cpp
@@ -756,6 +756,7 @@ bool QThreadPool::contains(const QThread *thread) const
     const QThreadPoolThread *poolThread = qobject_cast<const QThreadPoolThread *>(thread);
     if (!poolThread)
         return false;
+    QMutexLocker locker(&d->mutex);
     return d->allThreads.contains(const_cast<QThreadPoolThread *>(poolThread));
 }
 
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