Details
-
Bug
-
Resolution: Done
-
P3: Somewhat important
-
5.14.0
-
None
-
Linux/X11
-
9459abbe957ec1d083cebf24e90ebd19a1726d09 (qt/qtbase/5.15)
Description
The memory sanitizer complained about uninitialized value being sent to X server - the source of the uninitialized data is the "xcb_client_message_event_t finished". We got our tests to pass, but it looks like there are other cases where uninitialized memory is being used.
--- src/plugins/platforms/xcb/qxcbdrag.cpp 2020-09-01 10:10:51.369595517 -0700
+++ src/plugins/platforms/xcb/qxcbdrag.cpp 2020-09-01 10:11:20.564197019 -0700
@@ -1066,7 +1066,7 @@
setExecutedDropAction(response.acceptedAction());
- xcb_client_message_event_t finished;
+ xcb_client_message_event_t finished = {};
finished.response_type = XCB_CLIENT_MESSAGE;
finished.sequence = 0;
finished.window = xdnd_dragsource;