ASAN: use-after-poison in wkb_get_double in sql/spatial.cc on SELECT ST_GEOMFROMWKB

SELECT ST_GEOMFROMWKB (0x01070000000100000002010000000000000000000000);

==2565397==ERROR: AddressSanitizer: use-after-poison on address 0x629000087a2e at pc 0x5592d62b66f8 bp 0x153438dd7020 sp 0x153438dd7010

SUMMARY: AddressSanitizer: use-after-poison /test/10.7_opt_san/sql/spatial.cc:432 in wkb_get_double

==2565397==ERROR: AddressSanitizer: use-after-poison on address 0x629000087a2e at pc 0x5592d62b66f8 bp 0x153438dd7020 sp 0x153438dd7010

READ of size 8 at 0x629000087a2e thread T12

    #0 0x5592d62b66f7 in wkb_get_double /test/10.7_opt_san/sql/spatial.cc:432

    #1 0x5592d62b66f7 in Gis_point::init_from_wkb(char const*, unsigned int, Geometry::wkbByteOrder, String*) /test/10.7_opt_san/sql/spatial.cc:935

    #2 0x5592d62ccf7a in Gis_geometry_collection::init_from_wkb(char const*, unsigned int, Geometry::wkbByteOrder, String*) /test/10.7_opt_san/sql/spatial.cc:3390

    #3 0x5592d62db2f6 in Geometry::create_from_wkb(Geometry_buffer*, char const*, unsigned int, String*) /test/10.7_opt_san/sql/spatial.cc:483

    #4 0x5592d5b84137 in Item_func_geometry_from_wkb::val_str(String*) /test/10.7_opt_san/sql/item_geofunc.cc:112

    #5 0x5592d4dd42fd in Type_handler::Item_send_str(Item*, Protocol*, st_value*) const /test/10.7_opt_san/sql/sql_type.cc:7455

    #6 0x5592d3a4b791 in Protocol::send_result_set_row(List<Item>*) /test/10.7_opt_san/sql/protocol.cc:1327

    #7 0x5592d3db3839 in select_send::send_data(List<Item>&) /test/10.7_opt_san/sql/sql_class.cc:3072

    #8 0x5592d4479b77 in JOIN::exec_inner() /test/10.7_opt_san/sql/sql_select.cc:4601

    #9 0x5592d447db99 in JOIN::exec() /test/10.7_opt_san/sql/sql_select.cc:4513

    #10 0x5592d446d705 in mysql_select(THD*, TABLE_LIST*, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) /test/10.7_opt_san/sql/sql_select.cc:4991

    #11 0x5592d44715b3 in handle_select(THD*, LEX*, select_result*, unsigned long) /test/10.7_opt_san/sql/sql_select.cc:545

    #12 0x5592d40adf4f in execute_sqlcom_select /test/10.7_opt_san/sql/sql_parse.cc:6253

    #13 0x5592d40eda53 in mysql_execute_command(THD*, bool) /test/10.7_opt_san/sql/sql_parse.cc:3944

    #14 0x5592d407dfe8 in mysql_parse(THD*, char*, unsigned int, Parser_state*) /test/10.7_opt_san/sql/sql_parse.cc:8028

    #15 0x5592d40d3655 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /test/10.7_opt_san/sql/sql_parse.cc:1894

    #16 0x5592d40dee52 in do_command(THD*, bool) /test/10.7_opt_san/sql/sql_parse.cc:1402

    #17 0x5592d498a7bd in do_handle_one_connection(CONNECT*, bool) /test/10.7_opt_san/sql/sql_connect.cc:1418

    #18 0x5592d498d2b4 in handle_one_connection /test/10.7_opt_san/sql/sql_connect.cc:1312

    #19 0x5592d6955ce1 in pfs_spawn_thread /test/10.7_opt_san/storage/perfschema/pfs.cc:2201

    #20 0x15345931e608 in start_thread /build/glibc-eX1tMB/glibc-2.31/nptl/pthread_create.c:477

    #21 0x153458594292 in __clone (/lib/x86_64-linux-gnu/libc.so.6+0x122292)

0x629000087a2e is located 2094 bytes inside of 16400-byte region [0x629000087200,0x62900008b210)

allocated by thread T12 here:

    #0 0x5592d386fab8 in __interceptor_malloc (/test/UBASAN_MD300921-mariadb-10.7.1-linux-x86_64-opt/bin/mariadbd+0x7b60ab8)

    #1 0x5592d81544cb in my_malloc /test/10.7_opt_san/mysys/my_malloc.c:90

    #2 0x5592d812ff30 in root_alloc /test/10.7_opt_san/mysys/my_alloc.c:66

    #3 0x5592d812ff30 in reset_root_defaults /test/10.7_opt_san/mysys/my_alloc.c:243

    #4 0x5592d3d7ae23 in THD::init_for_queries() /test/10.7_opt_san/sql/sql_class.cc:1405

    #5 0x5592d4984695 in prepare_new_connection_state(THD*) /test/10.7_opt_san/sql/sql_connect.cc:1240

    #6 0x5592d4985fd7 in thd_prepare_connection(THD*) /test/10.7_opt_san/sql/sql_connect.cc:1333

    #7 0x5592d4985fd7 in thd_prepare_connection(THD*) /test/10.7_opt_san/sql/sql_connect.cc:1322

    #8 0x5592d4989674 in do_handle_one_connection(CONNECT*, bool) /test/10.7_opt_san/sql/sql_connect.cc:1408

    #9 0x5592d498d2b4 in handle_one_connection /test/10.7_opt_san/sql/sql_connect.cc:1312

    #10 0x5592d6955ce1 in pfs_spawn_thread /test/10.7_opt_san/storage/perfschema/pfs.cc:2201

    #11 0x15345931e608 in start_thread /build/glibc-eX1tMB/glibc-2.31/nptl/pthread_create.c:477

Thread T12 created by T0 here:

    #0 0x5592d379c725 in __interceptor_pthread_create (/test/UBASAN_MD300921-mariadb-10.7.1-linux-x86_64-opt/bin/mariadbd+0x7a8d725)

    #1 0x5592d696e0cf in my_thread_create /test/10.7_opt_san/storage/perfschema/my_thread.h:48

    #2 0x5592d696e0cf in pfs_spawn_thread_v1 /test/10.7_opt_san/storage/perfschema/pfs.cc:2252

    #3 0x5592d38c3805 in inline_mysql_thread_create /test/10.7_opt_san/include/mysql/psi/mysql_thread.h:1139

    #4 0x5592d38c3805 in create_thread_to_handle_connection(CONNECT*) /test/10.7_opt_san/sql/mysqld.cc:5952

    #5 0x5592d38d7510 in handle_accepted_socket(st_mysql_socket, st_mysql_socket) /test/10.7_opt_san/sql/mysqld.cc:6073

    #6 0x5592d38d878b in handle_connections_sockets() /test/10.7_opt_san/sql/mysqld.cc:6197

    #7 0x5592d38dc409 in mysqld_main(int, char**) /test/10.7_opt_san/sql/mysqld.cc:5847

    #8 0x1534584990b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x270b2)

SUMMARY: AddressSanitizer: use-after-poison /test/10.7_opt_san/sql/spatial.cc:432 in wkb_get_double

Shadow bytes around the buggy address:

  0x0c5280008ef0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x0c5280008f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x0c5280008f10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x0c5280008f20: 00 00 00 00 00 00 f7 00 00 f7 00 07 f7 00 00 00

  0x0c5280008f30: 00 00 05 f7 00 00 00 00 00 00 00 00 00 00 00 00

=>0x0c5280008f40: 00 00 f7 00 00[07]f7 00 00 00 00 00 07 f7 00 00

  0x0c5280008f50: 00 f7 00 00 f7 00 00 00 00 00 00 00 00 00 00 00

  0x0c5280008f60: 00 00 00 00 00 00 00 00 00 00 f7 00 00 f7 00 00

  0x0c5280008f70: 00 00 00 00 00 00 f7 00 00 f7 00 00 00 00 00 00

  0x0c5280008f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x0c5280008f90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Shadow byte legend (one shadow byte represents 8 application bytes):

  Addressable:           00

  Partially addressable: 01 02 03 04 05 06 07

  Heap left redzone:       fa

  Freed heap region:       fd

  Stack left redzone:      f1

  Stack mid redzone:       f2

  Stack right redzone:     f3

  Stack after return:      f5

  Stack use after scope:   f8

  Global redzone:          f9

  Global init order:       f6

  Poisoned by user:        f7

  Container overflow:      fc

  Array cookie:            ac

  Intra object redzone:    bb

  ASan internal:           fe

  Left alloca redzone:     ca

  Right alloca redzone:    cb

  Shadow gap:              cc

Compiled with GCC >=7.5.0 (I use GCC 9.3.0) and:

    -DWITH_ASAN=ON -DWITH_ASAN_SCOPE=ON -DWITH_UBSAN=ON -DWITH_RAPID=OFF -DWSREP_LIB_WITH_ASAN=ON

Set before execution:

    export ASAN_OPTIONS=quarantine_size_mb=512:atexit=1:detect_invalid_pointer_pairs=3:dump_instruction_bytes=1:abort_on_error=1