[MDEV-21247] ASAN use-after-poison in create_tmp_table upon SELECT from view with subquery and left join Created: 2019-12-07  Updated: 2021-02-21  Resolved: 2021-02-21

Status: Closed
Project: MariaDB Server
Component/s: Data Manipulation - Subquery, Views
Affects Version/s: 10.3
Fix Version/s: 10.3.24, 10.4.14, 10.5.5

Type: Bug Priority: Major
Reporter: Elena Stepanova Assignee: Unassigned
Resolution: Fixed Votes: 0
Labels: None


 Description    

CREATE TABLE t1 (a BIGINT, b BIT(1) NOT NULL) ENGINE=MyISAM;
 
CREATE VIEW v1 AS SELECT * FROM t1;
 
INSERT INTO t1 VALUES (1,b'0'),(2,b'0');
 
 
 
CREATE TABLE t2 (c INT) ENGINE=MyISAM;
 
INSERT INTO t2 VALUES (3),(4);
 
 
 
SELECT * FROM t2 LEFT JOIN ( SELECT * FROM v1 ) sq ON (c = a);
 
 
 
# Cleanup
 
DROP VIEW v1;
 
DROP TABLE t1, t2;

10.3 ASAN e5e58777

 
==18554==ERROR: AddressSanitizer: use-after-poison on address 0x61900008ad51 at pc 0x7f8bc12c7f7f bp 0x7f8bb561e060 sp 0x7f8bb561d810
 
READ of size 1 at 0x61900008ad51 thread T5
 
    #0 0x7f8bc12c7f7e  (/usr/lib/x86_64-linux-gnu/libasan.so.3+0x5cf7e)
 
    #1 0x560146b7f5ff in create_tmp_table(THD*, TMP_TABLE_PARAM*, List<Item>&, st_order*, bool, bool, unsigned long long, unsigned long long, st_mysql_const_lex_string const*, bool, bool) /data/src/10.3/sql/sql_select.cc:17852
 
    #2 0x560146cc66c3 in select_unit::create_result_table(THD*, List<Item>*, bool, unsigned long long, st_mysql_const_lex_string const*, bool, bool, bool, unsigned int) /data/src/10.3/sql/sql_union.cc:372
 
    #3 0x5601469bf93a in mysql_derived_prepare(THD*, LEX*, TABLE_LIST*) /data/src/10.3/sql/sql_derived.cc:799
 
    #4 0x5601469bc5e2 in mysql_handle_single_derived(LEX*, TABLE_LIST*, unsigned int) /data/src/10.3/sql/sql_derived.cc:199
 
    #5 0x560146d42ca8 in TABLE_LIST::handle_derived(LEX*, unsigned int) /data/src/10.3/sql/table.cc:8287
 
    #6 0x5601469fc10f in LEX::handle_list_of_derived(TABLE_LIST*, unsigned int) /data/src/10.3/sql/sql_lex.h:4019
 
    #7 0x560146a1bb62 in st_select_lex::handle_derived(LEX*, unsigned int) /data/src/10.3/sql/sql_lex.cc:4132
 
    #8 0x560146b073a4 in JOIN::prepare(TABLE_LIST*, unsigned int, Item*, unsigned int, st_order*, bool, st_order*, Item*, st_order*, st_select_lex*, st_select_lex_unit*) /data/src/10.3/sql/sql_select.cc:1036
 
    #9 0x560146b27153 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/10.3/sql/sql_select.cc:4269
 
    #10 0x560146b013f7 in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.3/sql/sql_select.cc:370
 
    #11 0x560146a83136 in execute_sqlcom_select /data/src/10.3/sql/sql_parse.cc:6294
 
    #12 0x560146a7293b in mysql_execute_command(THD*) /data/src/10.3/sql/sql_parse.cc:3821
 
    #13 0x560146a8c172 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /data/src/10.3/sql/sql_parse.cc:7818
 
    #14 0x560146a66e5e in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.3/sql/sql_parse.cc:1856
 
    #15 0x560146a63d3d in do_command(THD*) /data/src/10.3/sql/sql_parse.cc:1401
 
    #16 0x560146dd99fa in do_handle_one_connection(CONNECT*) /data/src/10.3/sql/sql_connect.cc:1403
 
    #17 0x560146dd93c1 in handle_one_connection /data/src/10.3/sql/sql_connect.cc:1308
 
    #18 0x56014823e5ff in pfs_spawn_thread /data/src/10.3/storage/perfschema/pfs.cc:1862
 
    #19 0x7f8bc10554a3 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x74a3)
 
    #20 0x7f8bbf59cd0e in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xe8d0e)
 
 
 
0x61900008ad51 is located 209 bytes inside of 1100-byte region [0x61900008ac80,0x61900008b0cc)
 
allocated by thread T5 here:
 
    #0 0x7f8bc132cd28 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.3+0xc1d28)
 
    #1 0x56014836e3a7 in sf_malloc /data/src/10.3/mysys/safemalloc.c:118
 
    #2 0x560148340230 in my_malloc /data/src/10.3/mysys/my_malloc.c:101
 
    #3 0x560148320961 in alloc_root /data/src/10.3/mysys/my_alloc.c:250
 
    #4 0x560148321dcf in memdup_root /data/src/10.3/mysys/my_alloc.c:492
 
    #5 0x560146d0c22e in TABLE_SHARE::init_from_binary_frm_image(THD*, bool, unsigned char const*, unsigned long) /data/src/10.3/sql/table.cc:1286
 
    #6 0x560146d07648 in open_table_def(THD*, TABLE_SHARE*, unsigned int) /data/src/10.3/sql/table.cc:677
 
    #7 0x560146f8f59c in tdc_acquire_share(THD*, TABLE_LIST*, unsigned int, TABLE**) /data/src/10.3/sql/table_cache.cc:840
 
    #8 0x560146917100 in open_table(THD*, TABLE_LIST*, Open_table_context*) /data/src/10.3/sql/sql_base.cc:1839
 
    #9 0x56014691fc7f in open_and_process_table /data/src/10.3/sql/sql_base.cc:3675
 
    #10 0x560146921f0a in open_tables(THD*, DDL_options_st const&, TABLE_LIST**, unsigned int*, unsigned int, Prelocking_strategy*) /data/src/10.3/sql/sql_base.cc:4144
 
    #11 0x560146926ce9 in open_and_lock_tables(THD*, DDL_options_st const&, TABLE_LIST*, bool, unsigned int, Prelocking_strategy*) /data/src/10.3/sql/sql_base.cc:5032
 
    #12 0x560146898a4d in open_and_lock_tables(THD*, TABLE_LIST*, bool, unsigned int) /data/src/10.3/sql/sql_base.h:505
 
    #13 0x560146cf4297 in mysql_create_view(THD*, TABLE_LIST*, enum_view_create_mode) /data/src/10.3/sql/sql_view.cc:450
 
    #14 0x560146a7ff01 in mysql_execute_command(THD*) /data/src/10.3/sql/sql_parse.cc:5852
 
    #15 0x560146a8c172 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /data/src/10.3/sql/sql_parse.cc:7818
 
    #16 0x560146a66e5e in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.3/sql/sql_parse.cc:1856
 
    #17 0x560146a63d3d in do_command(THD*) /data/src/10.3/sql/sql_parse.cc:1401
 
    #18 0x560146dd99fa in do_handle_one_connection(CONNECT*) /data/src/10.3/sql/sql_connect.cc:1403
 
    #19 0x560146dd93c1 in handle_one_connection /data/src/10.3/sql/sql_connect.cc:1308
 
    #20 0x56014823e5ff in pfs_spawn_thread /data/src/10.3/storage/perfschema/pfs.cc:1862
 
    #21 0x7f8bc10554a3 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x74a3)
 
 
 
Thread T5 created by T0 here:
 
    #0 0x7f8bc129bf59 in __interceptor_pthread_create (/usr/lib/x86_64-linux-gnu/libasan.so.3+0x30f59)
 
    #1 0x56014823ea3b in spawn_thread_v1 /data/src/10.3/storage/perfschema/pfs.cc:1912
 
    #2 0x5601467d0bb0 in inline_mysql_thread_create /data/src/10.3/include/mysql/psi/mysql_thread.h:1268
 
    #3 0x5601467e5ebc in create_thread_to_handle_connection(CONNECT*) /data/src/10.3/sql/mysqld.cc:6600
 
    #4 0x5601467e659f in create_new_thread /data/src/10.3/sql/mysqld.cc:6670
 
    #5 0x5601467e75b7 in handle_connections_sockets() /data/src/10.3/sql/mysqld.cc:6945
 
    #6 0x5601467e538c in mysqld_main(int, char**) /data/src/10.3/sql/mysqld.cc:6222
 
    #7 0x5601467cf2cf in main /data/src/10.3/sql/main.cc:25
 
    #8 0x7f8bbf4d42e0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202e0)
 
 
 
SUMMARY: AddressSanitizer: use-after-poison (/usr/lib/x86_64-linux-gnu/libasan.so.3+0x5cf7e) 
Shadow bytes around the buggy address:
 
  0x0c3280009550: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
 
  0x0c3280009560: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
 
  0x0c3280009570: f7 f7 f7 f7 f7 f7 f7 f7 f7 04 fa fa fa fa fa fa
 
  0x0c3280009580: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
 
  0x0c3280009590: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 
=>0x0c32800095a0: 00 f7 00 00 f7 01 f7 02 f7 00[01]f7 01 f7 00 00
 
  0x0c32800095b0: 00 00 00 00 00 00 00 f7 00 00 00 00 00 00 00 00
 
  0x0c32800095c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 
  0x0c32800095d0: 00 00 00 f7 00 00 00 00 00 00 00 00 00 00 00 00
 
  0x0c32800095e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 
  0x0c32800095f0: 00 f7 04 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
 
  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
 
==18554==ABORTING

Couldn't reproduce on 10.2 or 10.4.
No obvious immediate effect on a non-ASAN build.
Reproducible with MyISAM and Aria, couldn't reproduce with InnoDB.
Data in the test case is optional, reproducible with empty tables as well.

 Comments   
Comment by Elena Stepanova [ 2021-02-21 ]

The failure stopped happening on 10.3 after this commit:

commit 65f831d17c84900c1faea49164688e2f5ce59563 (HEAD)
 
Author: Monty
 
Date:   Sun Jun 28 20:07:32 2020 +0300
 
 
 
    Fixed bugs found by valgrind

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