Details
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Bug
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Status: Closed (View Workflow)
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Blocker
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Resolution: Duplicate
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10.5, 10.6, 10.9.0, 10.2(EOL), 10.3(EOL), 10.4(EOL), 10.7(EOL)
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None
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Linux jie-2 5.4.143-1-pve #1 SMP PVE 5.4.143-1 (Tue, 28 Sep 2021 09:10:37 +0200) x86_64 x86_64 x86_64 GNU/Linux
Description
PoC:
CREATE TABLE v0 ( v1 INT UNIQUE PRIMARY KEY ) ;
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DROP EVENT IF EXISTS v0 ;
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UPDATE v0 SET v1 = -1 WHERE v1 = 'x' ORDER BY 'x' DESC LIMIT 93 ;
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ALTER TABLE v0 ADD COLUMN ( MEMORY TINYBLOB DEFAULT ( v1 IN ( DAYNAME ( v1 ) , '' , 'x' 'x' 'x' ) ) UNIQUE ) ;
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UPDATE v0 SET v1 = NULL WHERE ( IF ( v1 AND v1 , 72 , 30 ) ) ;
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INSERT IGNORE INTO v0 SET v1 = ( '' ) + ( ( 'x' / NULL = INET_ATON ( ( v1 OR 'x' ) ) ) ) ;
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report (compiled with ASAN):
=================================================================
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==9569==ERROR: AddressSanitizer: use-after-poison on address 0x629000088404 at pc 0x0000009086a1 bp 0x7f2f01fad0d0 sp 0x7f2f01fad0c8
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READ of size 1 at 0x629000088404 thread T14
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#0 0x9086a0 in Binary_string::free_buffer() /root/mariadb/sql/sql_string.h:224:9
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#1 0x9086a0 in Binary_string::free() /root/mariadb/sql/sql_string.h:680:5
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#2 0x9086a0 in Binary_string::~Binary_string() /root/mariadb/sql/sql_string.h:271:5
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#3 0x9086a0 in Arg_comparator::~Arg_comparator() /root/mariadb/sql/item_cmpfunc.h:45:7
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#4 0x171733a in Item_bool_rowready_func2::~Item_bool_rowready_func2() /root/mariadb/sql/item_cmpfunc.h:535:7
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#5 0x171733a in Item_func_eq::~Item_func_eq() /root/mariadb/sql/item_cmpfunc.h:751:7
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#6 0xaefe90 in Item::delete_self() /root/mariadb/sql/item.h:2522:5
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#7 0xaefe90 in Query_arena::free_items() /root/mariadb/sql/sql_class.cc:3833:16
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#8 0xaefe90 in THD::cleanup_after_query() /root/mariadb/sql/sql_class.cc:2292:3
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#9 0xc41ba9 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /root/mariadb/sql/sql_parse.cc:1894:7
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#10 0xc4b74b in do_command(THD*, bool) /root/mariadb/sql/sql_parse.cc:1402:17
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#11 0x111f9f2 in do_handle_one_connection(CONNECT*, bool) /root/mariadb/sql/sql_connect.cc:1418:11
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#12 0x111f248 in handle_one_connection /root/mariadb/sql/sql_connect.cc:1312:5
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#13 0x1f3f9dd in pfs_spawn_thread /root/mariadb/storage/perfschema/pfs.cc:2201:3
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#14 0x7f2f26f57608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477:8
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#15 0x7f2f26c6d162 in clone /build/glibc-sMfBJT/glibc-2.31/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:95
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0x629000088404 is located 4612 bytes inside of 16400-byte region [0x629000087200,0x62900008b210)
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allocated by thread T14 here:
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#0 0x80f99d in malloc (/usr/local/mysql/bin/mariadbd+0x80f99d)
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#1 0x2a76878 in my_malloc /root/mariadb/mysys/my_malloc.c:90:29
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#2 0x2a582eb in root_alloc /root/mariadb/mysys/my_alloc.c:66:10
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#3 0x2a582eb in reset_root_defaults /root/mariadb/mysys/my_alloc.c:243:30
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#4 0xae83b5 in THD::init_for_queries() /root/mariadb/sql/sql_class.cc:1393:3
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#5 0x111e580 in prepare_new_connection_state(THD*) /root/mariadb/sql/sql_connect.cc:1240:8
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#6 0x1120266 in thd_prepare_connection(THD*) /root/mariadb/sql/sql_connect.cc:1333:3
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#7 0x111f8cc in do_handle_one_connection(CONNECT*, bool) /root/mariadb/sql/sql_connect.cc:1408:9
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#8 0x111f248 in handle_one_connection /root/mariadb/sql/sql_connect.cc:1312:5
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#9 0x1f3f9dd in pfs_spawn_thread /root/mariadb/storage/perfschema/pfs.cc:2201:3
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#10 0x7f2f26f57608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477:8
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Thread T14 created by T0 here:
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#0 0x7f9cfc in pthread_create (/usr/local/mysql/bin/mariadbd+0x7f9cfc)
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#1 0x1f3fd39 in my_thread_create(unsigned long*, pthread_attr_t const*, void* (*)(void*), void*) /root/mariadb/storage/perfschema/my_thread.h:52:10
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#2 0x1f3fd39 in pfs_spawn_thread_v1 /root/mariadb/storage/perfschema/pfs.cc:2252:15
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#3 0x85cef4 in inline_mysql_thread_create(unsigned int, unsigned long*, pthread_attr_t const*, void* (*)(void*), void*) /root/mariadb/include/mysql/psi/mysql_thread.h:1139:11
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#4 0x85cef4 in create_thread_to_handle_connection(CONNECT*) /root/mariadb/sql/mysqld.cc:5975:19
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#5 0x85e72a in create_new_thread(CONNECT*) /root/mariadb/sql/mysqld.cc:6034:3
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#6 0x85e72a in handle_accepted_socket(st_mysql_socket, st_mysql_socket) /root/mariadb/sql/mysqld.cc:6096:5
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#7 0x85a34c in handle_connections_sockets() /root/mariadb/sql/mysqld.cc:6220:9
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#8 0x84e9ef in mysqld_main(int, char**) /root/mariadb/sql/mysqld.cc:5870:3
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#9 0x7f2f26b720b2 in __libc_start_main /build/glibc-sMfBJT/glibc-2.31/csu/../csu/libc-start.c:308:16
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SUMMARY: AddressSanitizer: use-after-poison /root/mariadb/sql/sql_string.h:224:9 in Binary_string::free_buffer()
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Shadow bytes around the buggy address:
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0x0c5280009030: 00 f7 00 00 00 f7 00 00 f7 00 00 00 00 00 00 00
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0x0c5280009040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f7 00
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0x0c5280009050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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0x0c5280009060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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0x0c5280009070: 00 00 00 00 00 00 00 00 00 00 00 00 00 f7 f7 f7
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=>0x0c5280009080:[f7]f7 f7 f7 00 00 00 00 00 00 00 00 00 00 00 00
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0x0c5280009090: 00 00 00 00 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
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0x0c52800090a0: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 00 00 f7 00
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0x0c52800090b0: 00 f7 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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0x0c52800090c0: 00 00 00 00 00 00 f7 00 00 00 00 00 00 00 00 00
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0x0c52800090d0: 00 00 00 00 00 00 00 f7 00 00 00 00 00 00 00 00
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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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==9569==ABORTING
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Attachments
Issue Links
- duplicates
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MDEV-24176 Server crashes after insert in the table with virtual column generated using date_format() and if()
- Closed
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MDEV-26407 Server crashes in Item_func_in::cleanup/Item::cleanup_processor
- Closed
- relates to
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MDEV-23597 Assertion `marked_for_read()' failed while evaluating DEFAULT
- Closed
- links to