This is a regression introduced with commit
cb142954c5 that changed the code from
using QString:fromUtf8(name, propertyLength) to QString::fromUtf8(name),
assuming that the property name is a zero-terminated string. That
however is not correct.
ASAN trace:
==4039==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60400001e0b4 at pc 0x7f3383c7d66e bp 0x7ffdc8e3d9b0 sp 0x7ffdc8e3d158
READ of size 5 at 0x60400001e0b4 thread T0
#0 0x7f3383c7d66d (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x5166d)
#1 0x7f337602f32a in QString::fromUtf8(char const*, int) ../../../../include/QtCore/../../src/corelib/tools/qstring.h:569
#2 0x7f337602f32a in QXcbWindow::windowTitle(QXcbConnection const*, unsigned int) /home/simon/dev/qt-5.11/qtbase/src/plugins/platforms/xcb/qxcbwindow.cpp:2861
[...]
0x60400001e0b4 is located 0 bytes to the right of 36-byte region [0x60400001e090,0x60400001e0b4)
allocated by thread T1 (QXcbEventReader) here:
#0 0x7f3383d0ab50 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb50)
#1 0x7f337b397e2b (/usr/lib/x86_64-linux-gnu/libxcb.so.1+0xde2b)
Change-Id: Ia5024602d3aacb924b5dcd3956672da2a8f10feb
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2a80c04d3b