show plugins with soname + cursor protocol - RockDB - MSAN use-of-uninitialized-value

CURRENT_TEST: plugins.show_all_plugins + --cursor-protocol

mysqltest: At line 30: query 'show plugins soname where library = '$HA_EXAMPLE_SO'' failed: <Unknown> (2013): Lost connection to server during query

The result from queries just before the failure was:

< snip >

Opened_plugin_libraries	1

show plugins soname 'ha_example.so';

Name	Status	Type	Library	License

EXAMPLE	NOT INSTALLED	STORAGE ENGINE	ha_example.so	GPL

UNUSABLE	NOT INSTALLED	DAEMON	ha_example.so	GPL

show status like '%libraries%';

Variable_name	Value

Opened_plugin_libraries	2

show plugins soname like '%example%';

Name	Status	Type	Library	License

EXAMPLE	NOT INSTALLED	STORAGE ENGINE	ha_example.so	GPL

UNUSABLE	NOT INSTALLED	DAEMON	ha_example.so	GPL

daemon_example	NOT INSTALLED	DAEMON	libdaemon_example.so	GPL

example_key_management	NOT INSTALLED	ENCRYPTION	example_key_management.so	GPL

three_attempts	NOT INSTALLED	AUTHENTICATION	dialog_examples.so	GPL

two_questions	NOT INSTALLED	AUTHENTICATION	dialog_examples.so	GPL

show status like '%libraries%';

Variable_name	Value

Opened_plugin_libraries	7

show plugins soname where library = 'ha_example.so';

More results from queries before failure can be found in /build/mysql-test/var/2/log/show_all_plugins.log

Server [mysqld.1 - pid: 168401, winpid: 168401, exit: 256] failed during test run

Server log from this test:

----------SERVER LOG START-----------

==168403==WARNING: MemorySanitizer: use-of-uninitialized-value

    #0 0x7fa5028cc37b in rocksdb::ThreadLocalPtr::StaticMeta::StaticMeta()::A::~A() /source/storage/rocksdb/rocksdb/util/thread_local.cc:335:11

    #1 0x5625db315adb in MSanCxaAtExitWrapper(void*) (/build/sql/mariadbd+0x7f5adb) (BuildId: 95dd86fd864dbf36c350626486138589cbe8a174)

    #2 0x7fa50d48dff6 in __cxa_finalize (/lib/x86_64-linux-gnu/libc.so.6+0x3dff6) (BuildId: 79005c16293efa45b441fed45f4f29b138557e9e)

  Uninitialized value was created by a heap allocation

    #0 0x5625db314ca2 in malloc (/build/sql/mariadbd+0x7f4ca2) (BuildId: 95dd86fd864dbf36c350626486138589cbe8a174)

    #1 0x7fa50e371dfd  (/lib64/ld-linux-x86-64.so.2+0x10dfd) (BuildId: 3cbc62ba7dc05b522c3e7be640288b1197a92ae3)

SUMMARY: MemorySanitizer: use-of-uninitialized-value /source/storage/rocksdb/rocksdb/util/thread_local.cc:335:11 in rocksdb::ThreadLocalPtr::StaticMeta::StaticMeta()::A::~A()

Exiting