Details
P1: Critical Description
The ASAN report:
/home/jcelerier/libs/qt5/qtbase/src/plugins/platforms/xcb/qxcbdrag.cpp:1054:9: runtime error: load of misaligned address 0x504002eea79c for type 'const unsigned long', which requires 8 byte alignment
The code:
const unsigned long *l = (const unsigned long *)event->data.data32;
Most likely this just needs to be memcpy'd or std::bit_cast if that's available in Qt nowadays