ASAN heap-use-after-poison in row_merge_spatial_rows() with PRIMARY KEY on column prefix

--source include/have_innodb.inc

CREATE TABLE t (id INT, f VARCHAR(8192), s POINT NOT NULL DEFAULT POINT(0,0), PRIMARY KEY(id,f(8)), SPATIAL(s)) ENGINE=InnoDB;

INSERT INTO t (id,f) VALUES (1,REPEAT('x',8067));

INSERT INTO t (id,f) VALUES (2,'');

ALTER TABLE t FORCE;

# Cleanup

DROP TABLE t;

==3901273==ERROR: AddressSanitizer: use-after-poison on address 0x63100008c9d0 at pc 0x7f2a5c459983 bp 0x7f2a451ee140 sp 0x7f2a451ed8f0

READ of size 8 at 0x63100008c9d0 thread T27

    #0 0x7f2a5c459982 in __interceptor_memcpy ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:806

    #1 0x56212087568e in rec_convert_dtuple_to_rec_comp<false> /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/innobase/rem/rem0rec.cc:1597

    #2 0x56212086a750 in rec_convert_dtuple_to_rec_new /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/innobase/rem/rem0rec.cc:1633

    #3 0x56212086aa99 in rec_convert_dtuple_to_rec(unsigned char*, dict_index_t const*, dtuple_t const*, unsigned long) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/innobase/rem/rem0rec.cc:1662

    #4 0x562120b3c6dc in page_cur_tuple_insert /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/innobase/include/page0cur.inl:277

    #5 0x562120b541af in btr_cur_optimistic_insert(unsigned long, btr_cur_t*, unsigned short**, mem_block_info_t**, dtuple_t*, unsigned char**, big_rec_t**, unsigned long, que_thr_t*, mtr_t*) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/innobase/btr/btr0cur.cc:3457

    #6 0x5621208fc6ee in index_tuple_info_t::insert(unsigned long, mem_block_info_t*, btr_pcur_t*, mtr_t*) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/innobase/row/row0merge.cc:186

    #7 0x5621208e2e30 in row_merge_spatial_rows /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/innobase/row/row0merge.cc:1594

    #8 0x5621208e4e7c in row_merge_read_clustered_index /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/innobase/row/row0merge.cc:1949

    #9 0x5621208f7ab2 in row_merge_build_indexes(trx_t*, dict_table_t*, dict_table_t*, bool, dict_index_t**, unsigned long const*, unsigned long, TABLE*, dtuple_t const*, unsigned long const*, unsigned long, ib_sequence_t&, bool, ut_stage_alter_t*, dict_add_v_col_t const*, TABLE*, bool) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/innobase/row/row0merge.cc:4736

    #10 0x56212069ebec in ha_innobase::inplace_alter_table(TABLE*, Alter_inplace_info*) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/innobase/handler/handler0alter.cc:7209

    #11 0x56211fc33395 in handler::ha_inplace_alter_table(TABLE*, Alter_inplace_info*) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/handler.h:4147

    #12 0x56211fc183c6 in mysql_inplace_alter_table /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_table.cc:7774

    #13 0x56211fc2845e in mysql_alter_table(THD*, st_mysql_const_lex_string const*, st_mysql_const_lex_string const*, HA_CREATE_INFO*, TABLE_LIST*, Alter_info*, unsigned int, st_order*, bool) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_table.cc:10159

    #14 0x56211fd70a41 in Sql_cmd_alter_table::execute(THD*) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_alter.cc:512

    #15 0x56211fa0b459 in mysql_execute_command(THD*) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_parse.cc:6076

    #16 0x56211fa16017 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_parse.cc:7855

    #17 0x56211f9ef291 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_parse.cc:1852

    #18 0x56211f9ec4d6 in do_command(THD*) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_parse.cc:1398

    #19 0x56211fd61f98 in do_handle_one_connection(CONNECT*) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_connect.cc:1403

    #20 0x56211fd61894 in handle_one_connection /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_connect.cc:1308

    #21 0x562121218e6c in pfs_spawn_thread /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/perfschema/pfs.cc:1869

    #22 0x7f2a5bbc3ea6 in start_thread nptl/pthread_create.c:477

    #23 0x7f2a5bae3aee in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xfcaee)

0x63100008c9d0 is located 464 bytes inside of 65664-byte region [0x63100008c800,0x63100009c880)

allocated by thread T27 here:

    #0 0x7f2a5c4c9e8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145

    #1 0x5621207a507f in mem_heap_create_block_func(mem_block_info_t*, unsigned long, char const*, unsigned int, unsigned long) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/innobase/mem/mem0mem.cc:277

    #2 0x5621208cf916 in mem_heap_create_func /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/innobase/include/mem0mem.inl:375

    #3 0x5621208e4a01 in row_merge_read_clustered_index /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/innobase/row/row0merge.cc:1891

    #4 0x5621208f7ab2 in row_merge_build_indexes(trx_t*, dict_table_t*, dict_table_t*, bool, dict_index_t**, unsigned long const*, unsigned long, TABLE*, dtuple_t const*, unsigned long const*, unsigned long, ib_sequence_t&, bool, ut_stage_alter_t*, dict_add_v_col_t const*, TABLE*, bool) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/innobase/row/row0merge.cc:4736

    #5 0x56212069ebec in ha_innobase::inplace_alter_table(TABLE*, Alter_inplace_info*) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/innobase/handler/handler0alter.cc:7209

    #6 0x56211fc33395 in handler::ha_inplace_alter_table(TABLE*, Alter_inplace_info*) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/handler.h:4147

    #7 0x56211fc183c6 in mysql_inplace_alter_table /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_table.cc:7774

    #8 0x56211fc2845e in mysql_alter_table(THD*, st_mysql_const_lex_string const*, st_mysql_const_lex_string const*, HA_CREATE_INFO*, TABLE_LIST*, Alter_info*, unsigned int, st_order*, bool) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_table.cc:10159

    #9 0x56211fd70a41 in Sql_cmd_alter_table::execute(THD*) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_alter.cc:512

    #10 0x56211fa0b459 in mysql_execute_command(THD*) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_parse.cc:6076

    #11 0x56211fa16017 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_parse.cc:7855

    #12 0x56211f9ef291 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_parse.cc:1852

    #13 0x56211f9ec4d6 in do_command(THD*) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_parse.cc:1398

    #14 0x56211fd61f98 in do_handle_one_connection(CONNECT*) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_connect.cc:1403

    #15 0x56211fd61894 in handle_one_connection /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/sql_connect.cc:1308

    #16 0x562121218e6c in pfs_spawn_thread /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/perfschema/pfs.cc:1869

    #17 0x7f2a5bbc3ea6 in start_thread nptl/pthread_create.c:477

Thread T27 created by T0 here:

    #0 0x7f2a5c4752a2 in __interceptor_pthread_create ../../../../src/libsanitizer/asan/asan_interceptors.cpp:214

    #1 0x562121219259 in spawn_thread_v1 /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/storage/perfschema/pfs.cc:1919

    #2 0x56211f763d76 in inline_mysql_thread_create /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/include/mysql/psi/mysql_thread.h:1275

    #3 0x56211f779d43 in create_thread_to_handle_connection(CONNECT*) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/mysqld.cc:6678

    #4 0x56211f77a2df in create_new_thread /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/mysqld.cc:6748

    #5 0x56211f77b34c in handle_connections_sockets() /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/mysqld.cc:7006

    #6 0x56211f7794bd in mysqld_main(int, char**) /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/mysqld.cc:6300

    #7 0x56211f762604 in main /home/jenkins/workspace/sandbox-elenst/Nightly-Build-CS/src/sql/main.cc:25

    #8 0x7f2a5ba0ad09 in __libc_start_main ../csu/libc-start.c:308

SUMMARY: AddressSanitizer: use-after-poison ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:806 in __interceptor_memcpy

Shadow bytes around the buggy address:

  0x0c62800098e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

  0x0c62800098f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

  0x0c6280009900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x0c6280009910: f7 00 00 00 00 02 f7 00 00 00 00 00 00 00 00 00

  0x0c6280009920: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

=>0x0c6280009930: f7 00 00 00 00 00 00 03 f7 f7[f7]f7 f7 f7 f7 f7

  0x0c6280009940: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c6280009950: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c6280009960: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c6280009970: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c6280009980: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

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

==3901273==ABORTING