[MDEV-20619] AddressSanitizer: heap-use-after-free in my_strnncollsp_simple or my_strnncoll_binary upon SELECT with partitions and virtual columns - Jira

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Type: Bug
Status: Closed (View Workflow)
Priority: Major
Resolution: Cannot Reproduce
Affects Version/s: 10.2(EOL), 10.3(EOL), 10.4(EOL), 10.5
Fix Version/s: N/A
Component/s: Data types, Partitioning, Virtual Columns
Labels:
None

Description

--source include/have_partition.inc

CREATE TABLE t1 (

    pk INT,

    f1 INT,

    f2 INT AS (f1) VIRTUAL,

    f3 TEXT,

    f4 TINYTEXT AS (f3),

    f5 INT DEFAULT 0,

    PRIMARY KEY (pk),

    KEY (f2,f5)

) ENGINE=MyISAM;

INSERT IGNORE INTO t1 (pk,f3,f1) VALUES

    (1,REPEAT('a',49602),4),

    (2,REPEAT('b',28272),5),

    (3,REPEAT('c',34639),6);

ALTER TABLE t1 PARTITION BY KEY() PARTITIONS 5;

SELECT * FROM t1 WHERE f2 != 8 AND f4 = 'foo' ORDER BY f5;

# Cleanup

DROP TABLE t1;

10.2 ASAN fb3e3a6a
==21543==ERROR: AddressSanitizer: heap-use-after-free on address 0x62c000040270 at pc 0x564761a3293c bp 0x7fe014ac0370 sp 0x7fe014ac0368
READ of size 1 at 0x62c000040270 thread T5
#0 0x564761a3293b in my_strnncollsp_simple /data/src/10.2/strings/ctype-simple.c:182
#1 0x564760548911 in sortcmp(String const, String const, charset_info_st const*) /data/src/10.2/sql/sql_string.cc:804
#2 0x5647609f03d8 in Arg_comparator::compare_string() /data/src/10.2/sql/item_cmpfunc.cc:833
#3 0x564760a2c3d3 in Arg_comparator::compare() /data/src/10.2/sql/item_cmpfunc.h:87
#4 0x5647609fb681 in Item_func_eq::val_int() /data/src/10.2/sql/item_cmpfunc.cc:1799
#5 0x564760980c28 in Item::val_bool() /data/src/10.2/sql/item.cc:112
#6 0x564760a1a18e in Item_cond_and::val_int() /data/src/10.2/sql/item_cmpfunc.cc:5082
#7 0x5647605cf5bc in SQL_SELECT::skip_record(THD*) /data/src/10.2/sql/opt_range.h:1632
#8 0x564760942ae5 in find_all_keys /data/src/10.2/sql/filesort.cc:835
#9 0x56476093f022 in filesort(THD, TABLE, Filesort, Filesort_tracker, JOIN*, unsigned long long) /data/src/10.2/sql/filesort.cc:274
#10 0x56476049695d in create_sort_index(THD, JOIN, st_join_table, Filesort) /data/src/10.2/sql/sql_select.cc:22039
#11 0x5647604876f8 in st_join_table::sort_table() /data/src/10.2/sql/sql_select.cc:19804
#12 0x564760486d1b in join_init_read_record(st_join_table*) /data/src/10.2/sql/sql_select.cc:19745
#13 0x5647604809c8 in sub_select(JOIN, st_join_table, bool) /data/src/10.2/sql/sql_select.cc:18836
#14 0x56476047ef9b in do_select /data/src/10.2/sql/sql_select.cc:18383
#15 0x56476041f9ea in JOIN::exec_inner() /data/src/10.2/sql/sql_select.cc:3623
#16 0x56476041d7b7 in JOIN::exec() /data/src/10.2/sql/sql_select.cc:3418
#17 0x564760420a2d in mysql_select(THD, TABLE_LIST, unsigned int, List<Item>&, Item, unsigned int, st_order, st_order, Item, st_order, unsigned long long, select_result, st_select_lex_unit, st_select_lex) /data/src/10.2/sql/sql_select.cc:3818
#18 0x5647603ffd81 in handle_select(THD, LEX, select_result*, unsigned long) /data/src/10.2/sql/sql_select.cc:361
#19 0x564760385b6a in execute_sqlcom_select /data/src/10.2/sql/sql_parse.cc:6225
#20 0x564760373ebf in mysql_execute_command(THD*) /data/src/10.2/sql/sql_parse.cc:3532
#21 0x56476038e4aa in mysql_parse(THD, char, unsigned int, Parser_state*, bool, bool) /data/src/10.2/sql/sql_parse.cc:7759
#22 0x56476036a6aa in dispatch_command(enum_server_command, THD, char, unsigned int, bool, bool) /data/src/10.2/sql/sql_parse.cc:1831
#23 0x5647603676c0 in do_command(THD*) /data/src/10.2/sql/sql_parse.cc:1384
#24 0x5647606a07c9 in do_handle_one_connection(CONNECT*) /data/src/10.2/sql/sql_connect.cc:1336
#25 0x5647606a0199 in handle_one_connection /data/src/10.2/sql/sql_connect.cc:1241
#26 0x5647618d4502 in pfs_spawn_thread /data/src/10.2/storage/perfschema/pfs.cc:1862
#27 0x7fe0203924a3 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x74a3)
#28 0x7fe01e8dad0e in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xe8d0e)

0x62c000040270 is located 112 bytes inside of 28396-byte region [0x62c000040200,0x62c0000470ec)
freed by thread T5 here:
#0 0x7fe020669a10 in free (/usr/lib/x86_64-linux-gnu/libasan.so.3+0xc1a10)
#1 0x5647619da365 in free_memory /data/src/10.2/mysys/safemalloc.c:279
#2 0x5647619d99df in sf_free /data/src/10.2/mysys/safemalloc.c:197
#3 0x5647619aa7eb in my_free /data/src/10.2/mysys/my_malloc.c:218
#4 0x5647601913b1 in String::free() /data/src/10.2/sql/sql_string.h:347
#5 0x5647601cf036 in String::set(char const, unsigned int, charset_info_st const) /data/src/10.2/sql/sql_string.h:270
#6 0x564760911c40 in Field_blob::val_str(String, String) /data/src/10.2/sql/field.cc:8344
#7 0x5647601b3b5f in Field::val_str(String*) /data/src/10.2/sql/field.h:869
#8 0x56476092fe2c in Field_blob::store_field(Field*) /data/src/10.2/sql/field.h:3357
#9 0x56476093cd0b in field_conv_incompatible /data/src/10.2/sql/field_conv.cc:831
#10 0x56476093cda8 in field_conv(Field, Field) /data/src/10.2/sql/field_conv.cc:842
#11 0x5647609ae752 in save_field_in_field /data/src/10.2/sql/item.cc:6288
#12 0x5647609aec62 in Item_field::save_in_field(Field*, bool) /data/src/10.2/sql/item.cc:6334
#13 0x564760616893 in TABLE::update_virtual_fields(handler*, enum_vcol_update_mode) /data/src/10.2/sql/table.cc:7679
#14 0x5647609604f5 in handler::ha_index_next(unsigned char*) /data/src/10.2/sql/handler.cc:2768
#15 0x564760970c43 in handler::read_range_next() /data/src/10.2/sql/handler.cc:5505
#16 0x56476192d445 in ha_partition::handle_ordered_next(unsigned char*, bool) /data/src/10.2/sql/ha_partition.cc:6374
#17 0x5647619296be in ha_partition::read_range_next() /data/src/10.2/sql/ha_partition.cc:5832
#18 0x56476073a7cb in handler::multi_range_read_next(void**) /data/src/10.2/sql/multi_range_read.cc:270
#19 0x564760ca4375 in QUICK_RANGE_SELECT::get_next() /data/src/10.2/sql/opt_range.cc:11459
#20 0x564760942598 in find_all_keys /data/src/10.2/sql/filesort.cc:781
#21 0x56476093f022 in filesort(THD, TABLE, Filesort, Filesort_tracker, JOIN*, unsigned long long) /data/src/10.2/sql/filesort.cc:274
#22 0x56476049695d in create_sort_index(THD, JOIN, st_join_table, Filesort) /data/src/10.2/sql/sql_select.cc:22039
#23 0x5647604876f8 in st_join_table::sort_table() /data/src/10.2/sql/sql_select.cc:19804
#24 0x564760486d1b in join_init_read_record(st_join_table*) /data/src/10.2/sql/sql_select.cc:19745
#25 0x5647604809c8 in sub_select(JOIN, st_join_table, bool) /data/src/10.2/sql/sql_select.cc:18836
#26 0x56476047ef9b in do_select /data/src/10.2/sql/sql_select.cc:18383
#27 0x56476041f9ea in JOIN::exec_inner() /data/src/10.2/sql/sql_select.cc:3623
#28 0x56476041d7b7 in JOIN::exec() /data/src/10.2/sql/sql_select.cc:3418
#29 0x564760420a2d in mysql_select(THD, TABLE_LIST, unsigned int, List<Item>&, Item, unsigned int, st_order, st_order, Item, st_order, unsigned long long, select_result, st_select_lex_unit, st_select_lex) /data/src/10.2/sql/sql_select.cc:3818

previously allocated by thread T5 here:
#0 0x7fe020669d28 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.3+0xc1d28)
#1 0x5647619d93b6 in sf_malloc /data/src/10.2/mysys/safemalloc.c:118
#2 0x5647619a9f4e in my_malloc /data/src/10.2/mysys/my_malloc.c:101
#3 0x564760544369 in String::realloc_raw(unsigned long) /data/src/10.2/sql/sql_string.cc:102
#4 0x5647601914ca in String::realloc(unsigned long) /data/src/10.2/sql/sql_string.h:363
#5 0x564760544aff in String::copy() /data/src/10.2/sql/sql_string.cc:158
#6 0x56476092ff35 in Field_blob::store_field(Field*) /data/src/10.2/sql/field.h:3360
#7 0x56476093cd0b in field_conv_incompatible /data/src/10.2/sql/field_conv.cc:831
#8 0x56476093cda8 in field_conv(Field, Field) /data/src/10.2/sql/field_conv.cc:842
#9 0x5647609ae752 in save_field_in_field /data/src/10.2/sql/item.cc:6288
#10 0x5647609aec62 in Item_field::save_in_field(Field*, bool) /data/src/10.2/sql/item.cc:6334
#11 0x564760616893 in TABLE::update_virtual_fields(handler*, enum_vcol_update_mode) /data/src/10.2/sql/table.cc:7679
#12 0x56476095f541 in handler::ha_index_read_map(unsigned char, unsigned char const, unsigned long, ha_rkey_function) /data/src/10.2/sql/handler.cc:2718
#13 0x564760970826 in handler::read_range_first(st_key_range const, st_key_range const, bool, bool) /data/src/10.2/sql/handler.cc:5458
#14 0x56476192bc6c in ha_partition::handle_ordered_index_scan(unsigned char*, bool) /data/src/10.2/sql/ha_partition.cc:6180
#15 0x564761927c51 in ha_partition::common_index_read(unsigned char*, bool) /data/src/10.2/sql/ha_partition.cc:5527
#16 0x564761929465 in ha_partition::read_range_first(st_key_range const, st_key_range const, bool, bool) /data/src/10.2/sql/ha_partition.cc:5810
#17 0x56476073aa4c in handler::multi_range_read_next(void**) /data/src/10.2/sql/multi_range_read.cc:298
#18 0x564760ca4375 in QUICK_RANGE_SELECT::get_next() /data/src/10.2/sql/opt_range.cc:11459
#19 0x564760942598 in find_all_keys /data/src/10.2/sql/filesort.cc:781
#20 0x56476093f022 in filesort(THD, TABLE, Filesort, Filesort_tracker, JOIN*, unsigned long long) /data/src/10.2/sql/filesort.cc:274
#21 0x56476049695d in create_sort_index(THD, JOIN, st_join_table, Filesort) /data/src/10.2/sql/sql_select.cc:22039
#22 0x5647604876f8 in st_join_table::sort_table() /data/src/10.2/sql/sql_select.cc:19804
#23 0x564760486d1b in join_init_read_record(st_join_table*) /data/src/10.2/sql/sql_select.cc:19745
#24 0x5647604809c8 in sub_select(JOIN, st_join_table, bool) /data/src/10.2/sql/sql_select.cc:18836
#25 0x56476047ef9b in do_select /data/src/10.2/sql/sql_select.cc:18383
#26 0x56476041f9ea in JOIN::exec_inner() /data/src/10.2/sql/sql_select.cc:3623
#27 0x56476041d7b7 in JOIN::exec() /data/src/10.2/sql/sql_select.cc:3418
#28 0x564760420a2d in mysql_select(THD, TABLE_LIST, unsigned int, List<Item>&, Item, unsigned int, st_order, st_order, Item, st_order, unsigned long long, select_result, st_select_lex_unit, st_select_lex) /data/src/10.2/sql/sql_select.cc:3818
#29 0x5647603ffd81 in handle_select(THD, LEX, select_result*, unsigned long) /data/src/10.2/sql/sql_select.cc:361

Thread T5 created by T0 here:
#0 0x7fe0205d8f59 in __interceptor_pthread_create (/usr/lib/x86_64-linux-gnu/libasan.so.3+0x30f59)
#1 0x5647618d493e in spawn_thread_v1 /data/src/10.2/storage/perfschema/pfs.cc:1912
#2 0x56476016fbb2 in inline_mysql_thread_create /data/src/10.2/include/mysql/psi/mysql_thread.h:1239
#3 0x5647601841ae in create_thread_to_handle_connection(CONNECT*) /data/src/10.2/sql/mysqld.cc:6508
#4 0x564760184891 in create_new_thread /data/src/10.2/sql/mysqld.cc:6578
#5 0x5647601858a9 in handle_connections_sockets() /data/src/10.2/sql/mysqld.cc:6853
#6 0x564760183719 in mysqld_main(int, char**) /data/src/10.2/sql/mysqld.cc:6127
#7 0x56476016e53f in main /data/src/10.2/sql/main.cc:25
#8 0x7fe01e8122e0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202e0)

SUMMARY: AddressSanitizer: heap-use-after-free /data/src/10.2/strings/ctype-simple.c:182 in my_strnncollsp_simple
Shadow bytes around the buggy address:
0x0c587ffffff0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c5880000000: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c5880000010: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c5880000020: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c5880000030: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x0c5880000040: fd fd fd fd fd fd fd fd fd fd fd fd fd fd[fd]fd
0x0c5880000050: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c5880000060: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c5880000070: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c5880000080: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c5880000090: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
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
Heap right redzone: fb
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack partial redzone: f4
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
==21543==ABORTING

Similar test case, the only difference is TINYBLOB instead of TINYTEXT as a type of the virtual column:

--source include/have_partition.inc

CREATE TABLE t1 (

    pk INT,

    f1 INT,

    f2 INT AS (f1) VIRTUAL,

    f3 TEXT,

    f4 TINYBLOB AS (f3),

    f5 INT DEFAULT 0,

    PRIMARY KEY (pk),

    KEY (f2,f5)

) ENGINE=MyISAM;

INSERT IGNORE INTO t1 (pk,f3,f1) VALUES

    (1,REPEAT('a',49602),4),

    (2,REPEAT('b',28272),5),

    (3,REPEAT('c',34639),6);

ALTER TABLE t1 PARTITION BY KEY() PARTITIONS 5;

SELECT * FROM t1 WHERE f2 != 8 AND f4 = 'foo' ORDER BY f5;

# Cleanup

DROP TABLE t1;

10.2 ASAN fb3e3a6a
==1666==ERROR: AddressSanitizer: heap-use-after-free on address 0x62c000040270 at pc 0x7f1a2dfbe6ff bp 0x7f1a22445340 sp 0x7f1a22444af0
READ of size 3 at 0x62c000040270 thread T5
#0 0x7f1a2dfbe6fe (/usr/lib/x86_64-linux-gnu/libasan.so.3+0x8d6fe)
#1 0x5597bcc9a960 in my_strnncoll_binary /data/src/10.2/strings/ctype-bin.c:85
#2 0x5597bcc9a9e3 in my_strnncollsp_binary /data/src/10.2/strings/ctype-bin.c:124
#3 0x5597bb7cb911 in sortcmp(String const, String const, charset_info_st const*) /data/src/10.2/sql/sql_string.cc:804
#4 0x5597bbc733d8 in Arg_comparator::compare_string() /data/src/10.2/sql/item_cmpfunc.cc:833
#5 0x5597bbcaf3d3 in Arg_comparator::compare() /data/src/10.2/sql/item_cmpfunc.h:87
#6 0x5597bbc7e681 in Item_func_eq::val_int() /data/src/10.2/sql/item_cmpfunc.cc:1799
#7 0x5597bbc03c28 in Item::val_bool() /data/src/10.2/sql/item.cc:112
#8 0x5597bbc9d18e in Item_cond_and::val_int() /data/src/10.2/sql/item_cmpfunc.cc:5082
#9 0x5597bb8525bc in SQL_SELECT::skip_record(THD*) /data/src/10.2/sql/opt_range.h:1632
#10 0x5597bbbc5ae5 in find_all_keys /data/src/10.2/sql/filesort.cc:835
#11 0x5597bbbc2022 in filesort(THD, TABLE, Filesort, Filesort_tracker, JOIN*, unsigned long long) /data/src/10.2/sql/filesort.cc:274
#12 0x5597bb71995d in create_sort_index(THD, JOIN, st_join_table, Filesort) /data/src/10.2/sql/sql_select.cc:22039
#13 0x5597bb70a6f8 in st_join_table::sort_table() /data/src/10.2/sql/sql_select.cc:19804
#14 0x5597bb709d1b in join_init_read_record(st_join_table*) /data/src/10.2/sql/sql_select.cc:19745
#15 0x5597bb7039c8 in sub_select(JOIN, st_join_table, bool) /data/src/10.2/sql/sql_select.cc:18836
#16 0x5597bb701f9b in do_select /data/src/10.2/sql/sql_select.cc:18383
#17 0x5597bb6a29ea in JOIN::exec_inner() /data/src/10.2/sql/sql_select.cc:3623
#18 0x5597bb6a07b7 in JOIN::exec() /data/src/10.2/sql/sql_select.cc:3418
#19 0x5597bb6a3a2d in mysql_select(THD, TABLE_LIST, unsigned int, List<Item>&, Item, unsigned int, st_order, st_order, Item, st_order, unsigned long long, select_result, st_select_lex_unit, st_select_lex) /data/src/10.2/sql/sql_select.cc:3818
#20 0x5597bb682d81 in handle_select(THD, LEX, select_result*, unsigned long) /data/src/10.2/sql/sql_select.cc:361
#21 0x5597bb608b6a in execute_sqlcom_select /data/src/10.2/sql/sql_parse.cc:6225
#22 0x5597bb5f6ebf in mysql_execute_command(THD*) /data/src/10.2/sql/sql_parse.cc:3532
#23 0x5597bb6114aa in mysql_parse(THD, char, unsigned int, Parser_state*, bool, bool) /data/src/10.2/sql/sql_parse.cc:7759
#24 0x5597bb5ed6aa in dispatch_command(enum_server_command, THD, char, unsigned int, bool, bool) /data/src/10.2/sql/sql_parse.cc:1831
#25 0x5597bb5ea6c0 in do_command(THD*) /data/src/10.2/sql/sql_parse.cc:1384
#26 0x5597bb9237c9 in do_handle_one_connection(CONNECT*) /data/src/10.2/sql/sql_connect.cc:1336
#27 0x5597bb923199 in handle_one_connection /data/src/10.2/sql/sql_connect.cc:1241
#28 0x5597bcb57502 in pfs_spawn_thread /data/src/10.2/storage/perfschema/pfs.cc:1862
#29 0x7f1a2dd1b4a3 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x74a3)
#30 0x7f1a2c263d0e in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xe8d0e)

0x62c000040270 is located 112 bytes inside of 28396-byte region [0x62c000040200,0x62c0000470ec)
freed by thread T5 here:
#0 0x7f1a2dff2a10 in free (/usr/lib/x86_64-linux-gnu/libasan.so.3+0xc1a10)
#1 0x5597bcc5d365 in free_memory /data/src/10.2/mysys/safemalloc.c:279
#2 0x5597bcc5c9df in sf_free /data/src/10.2/mysys/safemalloc.c:197
#3 0x5597bcc2d7eb in my_free /data/src/10.2/mysys/my_malloc.c:218
#4 0x5597bb4143b1 in String::free() /data/src/10.2/sql/sql_string.h:347
#5 0x5597bb452036 in String::set(char const, unsigned int, charset_info_st const) /data/src/10.2/sql/sql_string.h:270
#6 0x5597bbb94c40 in Field_blob::val_str(String, String) /data/src/10.2/sql/field.cc:8344
#7 0x5597bb436b5f in Field::val_str(String*) /data/src/10.2/sql/field.h:869
#8 0x5597bbbb2e2c in Field_blob::store_field(Field*) /data/src/10.2/sql/field.h:3357
#9 0x5597bbbbfd0b in field_conv_incompatible /data/src/10.2/sql/field_conv.cc:831
#10 0x5597bbbbfda8 in field_conv(Field, Field) /data/src/10.2/sql/field_conv.cc:842
#11 0x5597bbc31752 in save_field_in_field /data/src/10.2/sql/item.cc:6288
#12 0x5597bbc31c62 in Item_field::save_in_field(Field*, bool) /data/src/10.2/sql/item.cc:6334
#13 0x5597bb899893 in TABLE::update_virtual_fields(handler*, enum_vcol_update_mode) /data/src/10.2/sql/table.cc:7679
#14 0x5597bbbe34f5 in handler::ha_index_next(unsigned char*) /data/src/10.2/sql/handler.cc:2768
#15 0x5597bbbf3c43 in handler::read_range_next() /data/src/10.2/sql/handler.cc:5505
#16 0x5597bcbb0445 in ha_partition::handle_ordered_next(unsigned char*, bool) /data/src/10.2/sql/ha_partition.cc:6374
#17 0x5597bcbac6be in ha_partition::read_range_next() /data/src/10.2/sql/ha_partition.cc:5832
#18 0x5597bb9bd7cb in handler::multi_range_read_next(void**) /data/src/10.2/sql/multi_range_read.cc:270
#19 0x5597bbf27375 in QUICK_RANGE_SELECT::get_next() /data/src/10.2/sql/opt_range.cc:11459
#20 0x5597bbbc5598 in find_all_keys /data/src/10.2/sql/filesort.cc:781
#21 0x5597bbbc2022 in filesort(THD, TABLE, Filesort, Filesort_tracker, JOIN*, unsigned long long) /data/src/10.2/sql/filesort.cc:274
#22 0x5597bb71995d in create_sort_index(THD, JOIN, st_join_table, Filesort) /data/src/10.2/sql/sql_select.cc:22039
#23 0x5597bb70a6f8 in st_join_table::sort_table() /data/src/10.2/sql/sql_select.cc:19804
#24 0x5597bb709d1b in join_init_read_record(st_join_table*) /data/src/10.2/sql/sql_select.cc:19745
#25 0x5597bb7039c8 in sub_select(JOIN, st_join_table, bool) /data/src/10.2/sql/sql_select.cc:18836
#26 0x5597bb701f9b in do_select /data/src/10.2/sql/sql_select.cc:18383
#27 0x5597bb6a29ea in JOIN::exec_inner() /data/src/10.2/sql/sql_select.cc:3623
#28 0x5597bb6a07b7 in JOIN::exec() /data/src/10.2/sql/sql_select.cc:3418
#29 0x5597bb6a3a2d in mysql_select(THD, TABLE_LIST, unsigned int, List<Item>&, Item, unsigned int, st_order, st_order, Item, st_order, unsigned long long, select_result, st_select_lex_unit, st_select_lex) /data/src/10.2/sql/sql_select.cc:3818

previously allocated by thread T5 here:
#0 0x7f1a2dff2d28 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.3+0xc1d28)
#1 0x5597bcc5c3b6 in sf_malloc /data/src/10.2/mysys/safemalloc.c:118
#2 0x5597bcc2cf4e in my_malloc /data/src/10.2/mysys/my_malloc.c:101
#3 0x5597bb7c7369 in String::realloc_raw(unsigned long) /data/src/10.2/sql/sql_string.cc:102
#4 0x5597bb4144ca in String::realloc(unsigned long) /data/src/10.2/sql/sql_string.h:363
#5 0x5597bb7c7aff in String::copy() /data/src/10.2/sql/sql_string.cc:158
#6 0x5597bbbb2f35 in Field_blob::store_field(Field*) /data/src/10.2/sql/field.h:3360
#7 0x5597bbbbfd0b in field_conv_incompatible /data/src/10.2/sql/field_conv.cc:831
#8 0x5597bbbbfda8 in field_conv(Field, Field) /data/src/10.2/sql/field_conv.cc:842
#9 0x5597bbc31752 in save_field_in_field /data/src/10.2/sql/item.cc:6288
#10 0x5597bbc31c62 in Item_field::save_in_field(Field*, bool) /data/src/10.2/sql/item.cc:6334
#11 0x5597bb899893 in TABLE::update_virtual_fields(handler*, enum_vcol_update_mode) /data/src/10.2/sql/table.cc:7679
#12 0x5597bbbe2541 in handler::ha_index_read_map(unsigned char, unsigned char const, unsigned long, ha_rkey_function) /data/src/10.2/sql/handler.cc:2718
#13 0x5597bbbf3826 in handler::read_range_first(st_key_range const, st_key_range const, bool, bool) /data/src/10.2/sql/handler.cc:5458
#14 0x5597bcbaec6c in ha_partition::handle_ordered_index_scan(unsigned char*, bool) /data/src/10.2/sql/ha_partition.cc:6180
#15 0x5597bcbaac51 in ha_partition::common_index_read(unsigned char*, bool) /data/src/10.2/sql/ha_partition.cc:5527
#16 0x5597bcbac465 in ha_partition::read_range_first(st_key_range const, st_key_range const, bool, bool) /data/src/10.2/sql/ha_partition.cc:5810
#17 0x5597bb9bda4c in handler::multi_range_read_next(void**) /data/src/10.2/sql/multi_range_read.cc:298
#18 0x5597bbf27375 in QUICK_RANGE_SELECT::get_next() /data/src/10.2/sql/opt_range.cc:11459
#19 0x5597bbbc5598 in find_all_keys /data/src/10.2/sql/filesort.cc:781
#20 0x5597bbbc2022 in filesort(THD, TABLE, Filesort, Filesort_tracker, JOIN*, unsigned long long) /data/src/10.2/sql/filesort.cc:274
#21 0x5597bb71995d in create_sort_index(THD, JOIN, st_join_table, Filesort) /data/src/10.2/sql/sql_select.cc:22039
#22 0x5597bb70a6f8 in st_join_table::sort_table() /data/src/10.2/sql/sql_select.cc:19804
#23 0x5597bb709d1b in join_init_read_record(st_join_table*) /data/src/10.2/sql/sql_select.cc:19745
#24 0x5597bb7039c8 in sub_select(JOIN, st_join_table, bool) /data/src/10.2/sql/sql_select.cc:18836
#25 0x5597bb701f9b in do_select /data/src/10.2/sql/sql_select.cc:18383
#26 0x5597bb6a29ea in JOIN::exec_inner() /data/src/10.2/sql/sql_select.cc:3623
#27 0x5597bb6a07b7 in JOIN::exec() /data/src/10.2/sql/sql_select.cc:3418
#28 0x5597bb6a3a2d in mysql_select(THD, TABLE_LIST, unsigned int, List<Item>&, Item, unsigned int, st_order, st_order, Item, st_order, unsigned long long, select_result, st_select_lex_unit, st_select_lex) /data/src/10.2/sql/sql_select.cc:3818
#29 0x5597bb682d81 in handle_select(THD, LEX, select_result*, unsigned long) /data/src/10.2/sql/sql_select.cc:361

Thread T5 created by T0 here:
#0 0x7f1a2df61f59 in __interceptor_pthread_create (/usr/lib/x86_64-linux-gnu/libasan.so.3+0x30f59)
#1 0x5597bcb5793e in spawn_thread_v1 /data/src/10.2/storage/perfschema/pfs.cc:1912
#2 0x5597bb3f2bb2 in inline_mysql_thread_create /data/src/10.2/include/mysql/psi/mysql_thread.h:1239
#3 0x5597bb4071ae in create_thread_to_handle_connection(CONNECT*) /data/src/10.2/sql/mysqld.cc:6508
#4 0x5597bb407891 in create_new_thread /data/src/10.2/sql/mysqld.cc:6578
#5 0x5597bb4088a9 in handle_connections_sockets() /data/src/10.2/sql/mysqld.cc:6853
#6 0x5597bb406719 in mysqld_main(int, char**) /data/src/10.2/sql/mysqld.cc:6127
#7 0x5597bb3f153f in main /data/src/10.2/sql/main.cc:25
#8 0x7f1a2c19b2e0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202e0)

SUMMARY: AddressSanitizer: heap-use-after-free (/usr/lib/x86_64-linux-gnu/libasan.so.3+0x8d6fe)
Shadow bytes around the buggy address:
0x0c587ffffff0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c5880000000: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c5880000010: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c5880000020: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c5880000030: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x0c5880000040: fd fd fd fd fd fd fd fd fd fd fd fd fd fd[fd]fd
0x0c5880000050: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c5880000060: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c5880000070: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c5880000080: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c5880000090: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
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
Heap right redzone: fb
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack partial redzone: f4
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
==1666==ABORTING

Reproducible on 10.2+.
The test case uses MyISAM, but similar failures were observed with more complicated test cases using InnoDB.
No obvious immediate effect on a non-ASAN build.

Attachments

Issue Links

relates to

MDEV-16699 heap-use-after-free in group_concat with compressed or GIS columns

Closed

MDEV-18414 Server crash or ASAN heap-use-after-free in my_strtod_int / Value_source::Converter_strntod::Converter_strntod

Closed

MDEV-18900 ASAN heap-use-after-free in my_strnncoll_binary upon a mix of char functions

Confirmed

MDEV-28384 UBSAN: null pointer passed as argument 1, which is declared to never be null in my_strnncoll_binary on SELECT ... COUNT or GROUP_CONCAT

Closed

MDEV-18449 ASAN heap-use-after-free in my_strnncollsp_simple

Closed

Activity

People

Assignee:: Nikita Malyavin

Reporter:: Elena Stepanova

Votes:: 0 Vote for this issue

Watchers:: 4 Start watching this issue

Dates

Created:: 2019-09-18 12:47

Updated:: 2023-04-27 22:25

Resolved:: 2023-04-27 11:01

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