[Draft] Error: Freeing overrun buffer and Assertion `(fwd->size & 0x4) == 0' failed

Error: Freeing overrun buffer 0x7fa354119490 at 0x563f824be620, 0x563f824ac3ea, mysys/safemalloc.c:194, mysys/my_malloc.c:224, sql/sp_head.cc:1379, sql/sp_head.cc:2293, sql/sql_parse.cc:2945, sql/sql_parse.cc:3187

Allocated at sql/sql_parse.cc:6279, mysys/my_alloc.c:249, sql/sql_class.h:1028, sql/sql_parse.cc:2679, sql/sp_head.cc:3486, sql/sp_head.cc:1353, sql/sp_head.cc:2293, sql/sql_parse.cc:2945

mysqld: malloc.c:3542: _int_malloc: Assertion `(fwd->size & 0x4) == 0' failed.

180618  2:59:08 [ERROR] mysqld got signal 6 ;

#2  <signal handler called>

#3  0x00007fa3a2af9ceb in ?? () from /lib/x86_64-linux-gnu/libc.so.6

#4  0x00007fa3a2a730da in ?? () from /lib/x86_64-linux-gnu/libc.so.6

#5  0x00007fa3a2a70ad5 in malloc () from /lib/x86_64-linux-gnu/libc.so.6

#6  0x0000563f824be379 in sf_malloc (size=80, my_flags=4120) at /home/travis/src/mysys/safemalloc.c:118

#7  0x0000563f824abf2d in my_malloc (size=80, my_flags=4120) at /home/travis/src/mysys/my_malloc.c:101

#8  0x0000563f818feeea in ilink::operator new (size=80) at /home/travis/src/sql/sql_list.h:611

#9  0x0000563f818f8c86 in handle_connections_sockets () at /home/travis/src/sql/mysqld.cc:6868

#10 0x0000563f818f7b9b in mysqld_main (argc=20, argv=0x563f853381e8) at /home/travis/src/sql/mysqld.cc:6179

#11 0x0000563f818ebc95 in main (argc=20, argv=0x7fffefebc6d8) at /home/travis/src/sql/main.cc:25

# 2018-06-18T02:56:59 [23204] Final command line: # 2018-06-18T02:56:59 [23204] perl /home/travis/rqg/runall-new.pl --vardir=/home/travis/logs/vardir --basedir=/home/travis/server --duration=350 --threads=6 --seed=1529290619 --reporters=Backtrace,ErrorLog,Deadlock --validators=TransformerNoComparator --views --redefine=conf/mariadb/versioning.yy --redefine=conf/mariadb/alter_table.yy --redefine=conf/mariadb/bulk_insert.yy --redefine=conf/mariadb/sequences.yy --mysqld=--log_output=FILE --mysqld=--max-statement-time=30 --mysqld=--lock-wait-timeout=10 --mysqld=--loose-innodb-lock-wait-timeout=5 --mysqld=--loose-debug_assert_on_not_freed_memory=0 --grammar=conf/runtime/information_schema.yy --transformers=ExecuteAsCTE,ExecuteAsDeleteReturning,ExecuteAsExcept,ExecuteAsExecuteImmediate,ExecuteAsInsertSelect,ExecuteAsIntersect,ExecuteAsUnion,ExecuteAsUpdateDelete,ExecuteAsView,ExecuteAsPreparedTwice,ExecuteAsSPTwice