diff --git a/src/libs/utils/mimetypes/mimedatabase.cpp b/src/libs/utils/mimetypes/mimedatabase.cpp
index 656797c44fd..35e0257e5e7 100644
--- a/src/libs/utils/mimetypes/mimedatabase.cpp
+++ b/src/libs/utils/mimetypes/mimedatabase.cpp
@@ -738,6 +738,8 @@ MimeType Utils::mimeTypeForFile(const QFileInfo &fileInfo, MimeMatchMode mode)
 MimeType Utils::mimeTypeForFile(const FilePath &filePath, MimeMatchMode mode)
 {
     MimeDatabase mdb;
+    if (filePath.needsDevice())
+        return mdb.mimeTypeForUrl(filePath.toUrl());
     return mdb.mimeTypeForFile(filePath.toString(), MimeDatabase::MatchMode(mode));
 }
 
diff --git a/src/plugins/docker/dockerdevice.cpp b/src/plugins/docker/dockerdevice.cpp
index eda67d973f9..cf355fed182 100644
--- a/src/plugins/docker/dockerdevice.cpp
+++ b/src/plugins/docker/dockerdevice.cpp
@@ -1733,7 +1733,7 @@ QString DockerDevicePrivate::outputForRunInShell(const CommandLine &cmd) const
     LOG("Run command in shell:" << cmd.toUserOutput() << "output size:" << output.size());
     if (QTC_GUARD(output.endsWith(markerWithNewLine)))
         output.chop(markerWithNewLine.size());
-    return QString::fromUtf8(output);
+    return QString::fromUtf8(output, output.size());
 }
 
 // Factory
diff --git a/src/plugins/remotelinux/linuxdevice.cpp b/src/plugins/remotelinux/linuxdevice.cpp
index 2fa40838e50..abf8667018f 100644
--- a/src/plugins/remotelinux/linuxdevice.cpp
+++ b/src/plugins/remotelinux/linuxdevice.cpp
@@ -270,7 +270,7 @@ public:
         if (pos >= 0)
             output = output.left(pos);
         DEBUG("CHOPPED2 " << output);
-        return QString::fromUtf8(output);
+        return QString::fromUtf8(output, output.size());
     }
 
     bool isRunning() const { return m_shell; }