Details
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Bug
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Status: Closed (View Workflow)
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Critical
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Resolution: Fixed
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10.2(EOL)
Description
The failure started happening after the same commit as MDEV-28393, but the tentative patch from MDEV-28393 doesn't fix it.
CREATE TABLE t (a BLOB DEFAULT 'x'); |
CREATE VIEW v AS SELECT * FROM t; |
INSERT INTO t () VALUES (); |
UPDATE t SET a = DEFAULT; |
SELECT * FROM information_schema.columns WHERE table_name = 'v'; |
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# Cleanup
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DROP VIEW v; |
DROP TABLE t; |
10.2 a7923b37 |
==3075970==ERROR: AddressSanitizer: heap-use-after-free on address 0x602000004398 at pc 0x7f8a43182983 bp 0x7f8a3806c170 sp 0x7f8a3806b920
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READ of size 1 at 0x602000004398 thread T5
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#0 0x7f8a43182982 in __interceptor_memcpy ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:806
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#1 0x55a15aec676a in String::copy(char const*, unsigned long, charset_info_st const*) /data/src/10.2/sql/sql_string.cc:200
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#2 0x55a15aec7179 in String::copy(char const*, unsigned int, charset_info_st const*, charset_info_st const*, unsigned int*) /data/src/10.2/sql/sql_string.cc:387
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#3 0x55a15ae5dc2c in get_field_default_value /data/src/10.2/sql/sql_show.cc:1823
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#4 0x55a15ae7f57f in get_schema_column_record /data/src/10.2/sql/sql_show.cc:5740
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#5 0x55a15ae60b9a in fill_schema_table_by_open /data/src/10.2/sql/sql_show.cc:4475
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#6 0x55a15ae9a429 in get_all_tables(THD*, TABLE_LIST*, Item*) /data/src/10.2/sql/sql_show.cc:5101
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#7 0x55a15aea14f3 in get_schema_tables_result(JOIN*, enum_schema_table_state) /data/src/10.2/sql/sql_show.cc:8573
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#8 0x55a15ae499a4 in JOIN::exec_inner() /data/src/10.2/sql/sql_select.cc:3615
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#9 0x55a15ae4bc79 in JOIN::exec() /data/src/10.2/sql/sql_select.cc:3446
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#10 0x55a15ae4c073 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:3849
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#11 0x55a15ae4ea7a in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.2/sql/sql_select.cc:361
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#12 0x55a15acf49a7 in execute_sqlcom_select /data/src/10.2/sql/sql_parse.cc:6271
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#13 0x55a15ad1aee1 in mysql_execute_command(THD*) /data/src/10.2/sql/sql_parse.cc:3582
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#14 0x55a15ad23747 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /data/src/10.2/sql/sql_parse.cc:7793
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#15 0x55a15ad29b8e in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.2/sql/sql_parse.cc:1827
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#16 0x55a15ad2da2d in do_command(THD*) /data/src/10.2/sql/sql_parse.cc:1381
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#17 0x55a15b0109f6 in do_handle_one_connection(CONNECT*) /data/src/10.2/sql/sql_connect.cc:1336
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#18 0x55a15b01112a in handle_one_connection /data/src/10.2/sql/sql_connect.cc:1241
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#19 0x55a15c1a2324 in pfs_spawn_thread /data/src/10.2/storage/perfschema/pfs.cc:1869
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#20 0x7f8a42c7bea6 in start_thread nptl/pthread_create.c:477
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#21 0x7f8a42880dee in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xfddee)
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0x602000004398 is located 8 bytes inside of 16-byte region [0x602000004390,0x6020000043a0)
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freed by thread T5 here:
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#0 0x7f8a431f2b6f in __interceptor_free ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:123
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#1 0x55a15b2689d5 in String::free() /data/src/10.2/sql/sql_string.h:351
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#2 0x55a15b2689d5 in String::~String() /data/src/10.2/sql/sql_string.h:187
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#3 0x55a15b2689d5 in Field_blob::~Field_blob() /data/src/10.2/sql/field.h:3308
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#4 0x55a15b2689d5 in Field_blob::~Field_blob() /data/src/10.2/sql/field.h:3308
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#5 0x55a15b2b67fa in Item_default_value::cleanup() /data/src/10.2/sql/item.cc:9064
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#6 0x55a15ac5bf33 in Item::delete_self() /data/src/10.2/sql/item.h:1964
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#7 0x55a15ac5bf33 in Query_arena::free_items() /data/src/10.2/sql/sql_class.cc:3642
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#8 0x55a15ac63532 in THD::cleanup_after_query() /data/src/10.2/sql/sql_class.cc:2097
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#9 0x55a15ad2337e in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /data/src/10.2/sql/sql_parse.cc:7815
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#10 0x55a15ad29b8e in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.2/sql/sql_parse.cc:1827
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#11 0x55a15ad2da2d in do_command(THD*) /data/src/10.2/sql/sql_parse.cc:1381
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#12 0x55a15b0109f6 in do_handle_one_connection(CONNECT*) /data/src/10.2/sql/sql_connect.cc:1336
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#13 0x55a15b01112a in handle_one_connection /data/src/10.2/sql/sql_connect.cc:1241
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#14 0x55a15c1a2324 in pfs_spawn_thread /data/src/10.2/storage/perfschema/pfs.cc:1869
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#15 0x7f8a42c7bea6 in start_thread nptl/pthread_create.c:477
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previously allocated by thread T5 here:
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#0 0x7f8a431f2e8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
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#1 0x55a15c25a9a2 in my_malloc /data/src/10.2/mysys/my_malloc.c:101
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#2 0x55a15aec5e23 in String::real_alloc(unsigned long) /data/src/10.2/sql/sql_string.cc:45
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#3 0x55a15b25d98c in String::alloc(unsigned long) /data/src/10.2/sql/sql_string.h:361
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#4 0x55a15b25d98c in Field_blob::store(char const*, unsigned int, charset_info_st const*) /data/src/10.2/sql/field.cc:8305
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#5 0x55a15b2239b3 in Field::set_default() /data/src/10.2/sql/field.cc:2457
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#6 0x55a15b2f8c72 in Item_default_value::save_in_field(Field*, bool) /data/src/10.2/sql/item.cc:9133
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#7 0x55a15ac2c516 in fill_record(THD*, TABLE*, List<Item>&, List<Item>&, bool, bool) /data/src/10.2/sql/sql_base.cc:8118
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#8 0x55a15ac2d2b9 in fill_record_n_invoke_before_triggers(THD*, TABLE*, List<Item>&, List<Item>&, bool, trg_event_type) /data/src/10.2/sql/sql_base.cc:8263
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#9 0x55a15af4f7ed in mysql_update(THD*, TABLE_LIST*, List<Item>&, List<Item>&, Item*, unsigned int, st_order*, unsigned long long, enum_duplicates, bool, unsigned long long*, unsigned long long*) /data/src/10.2/sql/sql_update.cc:766
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#10 0x55a15ad15ddd in mysql_execute_command(THD*) /data/src/10.2/sql/sql_parse.cc:4056
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#11 0x55a15ad23747 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /data/src/10.2/sql/sql_parse.cc:7793
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#12 0x55a15ad29b8e in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.2/sql/sql_parse.cc:1827
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#13 0x55a15ad2da2d in do_command(THD*) /data/src/10.2/sql/sql_parse.cc:1381
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#14 0x55a15b0109f6 in do_handle_one_connection(CONNECT*) /data/src/10.2/sql/sql_connect.cc:1336
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#15 0x55a15b01112a in handle_one_connection /data/src/10.2/sql/sql_connect.cc:1241
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#16 0x55a15c1a2324 in pfs_spawn_thread /data/src/10.2/storage/perfschema/pfs.cc:1869
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#17 0x7f8a42c7bea6 in start_thread nptl/pthread_create.c:477
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Thread T5 created by T0 here:
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#0 0x7f8a4319e2a2 in __interceptor_pthread_create ../../../../src/libsanitizer/asan/asan_interceptors.cpp:214
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#1 0x55a15c1a75aa in spawn_thread_v1 /data/src/10.2/storage/perfschema/pfs.cc:1919
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#2 0x55a15ab1eecf in inline_mysql_thread_create /data/src/10.2/include/mysql/psi/mysql_thread.h:1246
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#3 0x55a15ab1eecf in create_thread_to_handle_connection(CONNECT*) /data/src/10.2/sql/mysqld.cc:6580
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#4 0x55a15ab2f26c in create_new_thread /data/src/10.2/sql/mysqld.cc:6650
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#5 0x55a15ab2f26c in handle_connections_sockets() /data/src/10.2/sql/mysqld.cc:6908
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#6 0x55a15ab3179f in mysqld_main(int, char**) /data/src/10.2/sql/mysqld.cc:6199
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#7 0x7f8a427a9d09 in __libc_start_main ../csu/libc-start.c:308
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SUMMARY: AddressSanitizer: heap-use-after-free ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:806 in __interceptor_memcpy
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Shadow bytes around the buggy address:
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0x0c047fff8820: fa fa fd fd fa fa fd fd fa fa fd fd fa fa fd fd
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0x0c047fff8830: fa fa fd fd fa fa fd fd fa fa fd fd fa fa 00 00
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0x0c047fff8840: fa fa 00 00 fa fa fd fd fa fa 00 00 fa fa 00 00
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0x0c047fff8850: fa fa 00 00 fa fa 00 00 fa fa 00 00 fa fa fd fd
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0x0c047fff8860: fa fa fd fd fa fa fd fd fa fa 00 00 fa fa 00 00
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=>0x0c047fff8870: fa fa fd[fd]fa fa 00 00 fa fa fa fa fa fa fa fa
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0x0c047fff8880: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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0x0c047fff8890: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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0x0c047fff88a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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0x0c047fff88b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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0x0c047fff88c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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Shadow byte legend (one shadow byte represents 8 application bytes):
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Addressable: 00
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Partially addressable: 01 02 03 04 05 06 07
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Heap left redzone: fa
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Freed heap region: fd
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Stack left redzone: f1
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Stack mid redzone: f2
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Stack right redzone: f3
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Stack after return: f5
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Stack use after scope: f8
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Global redzone: f9
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Global init order: f6
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Poisoned by user: f7
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Container overflow: fc
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Array cookie: ac
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Intra object redzone: bb
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ASan internal: fe
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Left alloca redzone: ca
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Right alloca redzone: cb
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Shadow gap: cc
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==3075970==ABORTING
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