Crash on mthd_stmt_read_all_rows when SELECT has lots of field

I have a rather long SELECT query that retrieves data from multiple tables - a query that crashes when it is executed.

I've attached the windows minidump. Plus some analysis data from BoundsChecker,

backtrace:
1 libmariadb.dll!net_field_length(unsigned char * * packet=0x0018e128)
*2 libmariadb.dll!mthd_stmt_read_all_rows(st_mysql_stmt * stmt=0x032c7ce8)
3 libmariadb.dll!mysql_stmt_store_result(st_mysql_stmt * stmt=0x032c7ce8)
4 qsqlmysql.dll!QMYSQLResult::exec()

Easily reproducible - please let me know what you need more.