[MDEV-14929] AddressSanitizer: memcpy-param-overlap in Field_longstr::compress Created: 2018-01-11  Updated: 2018-04-02  Resolved: 2018-04-02

Status: Closed
Project: MariaDB Server
Component/s: Server
Affects Version/s: 10.3
Fix Version/s: 10.3.6

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

Sprint: 10.3.6-1

 Description    

CREATE TABLE t1 (b BLOB COMPRESSED);
 
INSERT INTO t1 VALUES ('foo'),('bar');
 
 
 
SET SESSION optimizer_switch = 'derived_merge=off';
 
SELECT * FROM ( SELECT * FROM t1 ) AS sq;
 
 
 
# Cleanup
 
DROP TABLE t1;

10.3 21239bb0fd2 ASAN

 
==27270==ERROR: AddressSanitizer: memcpy-param-overlap: memory ranges [0x60c00000cef1,0x60c00000cef4) and [0x60c00000cef0, 0x60c00000cef3) overlap
 
    #0 0x7faa1946d91f (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x2e91f)
 
    #1 0x559fc80b01c7 in Field_longstr::compress(char*, unsigned int*, char const*, unsigned int, charset_info_st const*) /data/src/10.3/sql/field.cc:7838
 
    #2 0x559fc80b8891 in Field_blob_compressed::store(char const*, unsigned int, charset_info_st const*) /data/src/10.3/sql/field.cc:8515
 
    #3 0x559fc80da59a in Field_blob::store_field(Field*) /data/src/10.3/sql/field.h:3412
 
    #4 0x559fc80e8737 in field_conv_incompatible /data/src/10.3/sql/field_conv.cc:835
 
    #5 0x559fc80e87d4 in field_conv(Field*, Field*) /data/src/10.3/sql/field_conv.cc:848
 
    #6 0x559fc81675be in save_field_in_field /data/src/10.3/sql/item.cc:6724
 
    #7 0x559fc8167aba in Item_field::save_in_field(Field*, bool) /data/src/10.3/sql/item.cc:6770
 
    #8 0x559fc7929689 in fill_record(THD*, TABLE*, Field**, List<Item>&, bool, bool) /data/src/10.3/sql/sql_base.cc:8398
 
    #9 0x559fc7c819cd in select_unit::send_data(List<Item>&) /data/src/10.3/sql/sql_union.cc:128
 
    #10 0x559fc7b5ca32 in end_send /data/src/10.3/sql/sql_select.cc:19968
 
    #11 0x559fc7b54dd2 in evaluate_join_record /data/src/10.3/sql/sql_select.cc:19019
 
    #12 0x559fc7b539a8 in sub_select(JOIN*, st_join_table*, bool) /data/src/10.3/sql/sql_select.cc:18799
 
    #13 0x559fc7b51cc4 in do_select /data/src/10.3/sql/sql_select.cc:18339
 
    #14 0x559fc7aefe20 in JOIN::exec_inner() /data/src/10.3/sql/sql_select.cc:3636
 
    #15 0x559fc7aeda5d in JOIN::exec() /data/src/10.3/sql/sql_select.cc:3431
 
    #16 0x559fc7af0f5d 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:3835
 
    #17 0x559fc79acfc5 in mysql_derived_fill(THD*, LEX*, TABLE_LIST*) /data/src/10.3/sql/sql_derived.cc:1134
 
    #18 0x559fc79a76c6 in mysql_handle_single_derived(LEX*, TABLE_LIST*, unsigned int) /data/src/10.3/sql/sql_derived.cc:197
 
    #19 0x559fc7b291d0 in st_join_table::preread_init() /data/src/10.3/sql/sql_select.cc:12066
 
    #20 0x559fc7b5345c in sub_select(JOIN*, st_join_table*, bool) /data/src/10.3/sql/sql_select.cc:18767
 
    #21 0x559fc7b51cc4 in do_select /data/src/10.3/sql/sql_select.cc:18339
 
    #22 0x559fc7aefe20 in JOIN::exec_inner() /data/src/10.3/sql/sql_select.cc:3636
 
    #23 0x559fc7aeda5d in JOIN::exec() /data/src/10.3/sql/sql_select.cc:3431
 
    #24 0x559fc7af0f5d 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:3835
 
    #25 0x559fc7acfc7a in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.3/sql/sql_select.cc:375
 
    #26 0x559fc7a52406 in execute_sqlcom_select /data/src/10.3/sql/sql_parse.cc:6499
 
    #27 0x559fc7a4084d in mysql_execute_command(THD*) /data/src/10.3/sql/sql_parse.cc:3739
 
    #28 0x559fc7a5a77b in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /data/src/10.3/sql/sql_parse.cc:7956
 
    #29 0x559fc7a35278 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.3/sql/sql_parse.cc:1825
 
    #30 0x559fc7a322d9 in do_command(THD*) /data/src/10.3/sql/sql_parse.cc:1369
 
    #31 0x559fc7d86139 in do_handle_one_connection(CONNECT*) /data/src/10.3/sql/sql_connect.cc:1401
 
    #32 0x559fc7d85b4e in handle_one_connection /data/src/10.3/sql/sql_connect.cc:1307
 
    #33 0x559fc88a4556 in pfs_spawn_thread /data/src/10.3/storage/perfschema/pfs.cc:1863
 
    #34 0x7faa19229493 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x7493)
 
    #35 0x7faa1760f93e in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xe893e)
 
 
 
0x60c00000cef1 is located 113 bytes inside of 124-byte region [0x60c00000ce80,0x60c00000cefc)
 
allocated by thread T5 here:
 
    #0 0x7faa1949373f in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x5473f)
 
    #1 0x559fc929b360 in sf_malloc /data/src/10.3/mysys/safemalloc.c:118
 
    #2 0x559fc926a061 in my_malloc /data/src/10.3/mysys/my_malloc.c:101
 
    #3 0x559fc7c183df in String::realloc_raw(unsigned long) /data/src/10.3/sql/sql_string.cc:101
 
    #4 0x559fc78256e6 in String::realloc(unsigned long) /data/src/10.3/sql/sql_string.h:376
 
    #5 0x559fc7c191f5 in String::copy() /data/src/10.3/sql/sql_string.cc:212
 
    #6 0x559fc80da4b5 in Field_blob::store_field(Field*) /data/src/10.3/sql/field.h:3411
 
    #7 0x559fc80e8737 in field_conv_incompatible /data/src/10.3/sql/field_conv.cc:835
 
    #8 0x559fc80e87d4 in field_conv(Field*, Field*) /data/src/10.3/sql/field_conv.cc:848
 
    #9 0x559fc81675be in save_field_in_field /data/src/10.3/sql/item.cc:6724
 
    #10 0x559fc8167aba in Item_field::save_in_field(Field*, bool) /data/src/10.3/sql/item.cc:6770
 
    #11 0x559fc7929689 in fill_record(THD*, TABLE*, Field**, List<Item>&, bool, bool) /data/src/10.3/sql/sql_base.cc:8398
 
    #12 0x559fc7c819cd in select_unit::send_data(List<Item>&) /data/src/10.3/sql/sql_union.cc:128
 
    #13 0x559fc7b5ca32 in end_send /data/src/10.3/sql/sql_select.cc:19968
 
    #14 0x559fc7b54dd2 in evaluate_join_record /data/src/10.3/sql/sql_select.cc:19019
 
    #15 0x559fc7b539a8 in sub_select(JOIN*, st_join_table*, bool) /data/src/10.3/sql/sql_select.cc:18799
 
    #16 0x559fc7b51cc4 in do_select /data/src/10.3/sql/sql_select.cc:18339
 
    #17 0x559fc7aefe20 in JOIN::exec_inner() /data/src/10.3/sql/sql_select.cc:3636
 
    #18 0x559fc7aeda5d in JOIN::exec() /data/src/10.3/sql/sql_select.cc:3431
 
    #19 0x559fc7af0f5d 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:3835
 
    #20 0x559fc79acfc5 in mysql_derived_fill(THD*, LEX*, TABLE_LIST*) /data/src/10.3/sql/sql_derived.cc:1134
 
    #21 0x559fc79a76c6 in mysql_handle_single_derived(LEX*, TABLE_LIST*, unsigned int) /data/src/10.3/sql/sql_derived.cc:197
 
    #22 0x559fc7b291d0 in st_join_table::preread_init() /data/src/10.3/sql/sql_select.cc:12066
 
    #23 0x559fc7b5345c in sub_select(JOIN*, st_join_table*, bool) /data/src/10.3/sql/sql_select.cc:18767
 
    #24 0x559fc7b51cc4 in do_select /data/src/10.3/sql/sql_select.cc:18339
 
    #25 0x559fc7aefe20 in JOIN::exec_inner() /data/src/10.3/sql/sql_select.cc:3636
 
    #26 0x559fc7aeda5d in JOIN::exec() /data/src/10.3/sql/sql_select.cc:3431
 
    #27 0x559fc7af0f5d 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:3835
 
    #28 0x559fc7acfc7a in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.3/sql/sql_select.cc:375
 
    #29 0x559fc7a52406 in execute_sqlcom_select /data/src/10.3/sql/sql_parse.cc:6499
 
 
 
Thread T5 created by T0 here:
 
    #0 0x7faa19462bba in pthread_create (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x23bba)
 
    #1 0x559fc88a4b1e in spawn_thread_v1 /data/src/10.3/storage/perfschema/pfs.cc:1913
 
    #2 0x559fc7802cef in inline_mysql_thread_create /data/src/10.3/include/mysql/psi/mysql_thread.h:1239
 
    #3 0x559fc7817f6a in create_thread_to_handle_connection(CONNECT*) /data/src/10.3/sql/mysqld.cc:6517
 
    #4 0x559fc781866f in create_new_thread /data/src/10.3/sql/mysqld.cc:6587
 
    #5 0x559fc7819680 in handle_connections_sockets() /data/src/10.3/sql/mysqld.cc:6862
 
    #6 0x559fc7817422 in mysqld_main(int, char**) /data/src/10.3/sql/mysqld.cc:6135
 
    #7 0x559fc780121f in main /data/src/10.3/sql/main.cc:25
 
    #8 0x7faa175472b0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202b0)
 
 
 
0x60c00000cef0 is located 112 bytes inside of 124-byte region [0x60c00000ce80,0x60c00000cefc)
 
    #0 0x7faa1949373f in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x5473f)
 
    #1 0x559fc929b360 in sf_malloc /data/src/10.3/mysys/safemalloc.c:118
 
    #2 0x559fc926a061 in my_malloc /data/src/10.3/mysys/my_malloc.c:101
 
    #3 0x559fc7c183df in String::realloc_raw(unsigned long) /data/src/10.3/sql/sql_string.cc:101
 
    #4 0x559fc78256e6 in String::realloc(unsigned long) /data/src/10.3/sql/sql_string.h:376
 
    #5 0x559fc7c191f5 in String::copy() /data/src/10.3/sql/sql_string.cc:212
 
    #6 0x559fc80da4b5 in Field_blob::store_field(Field*) /data/src/10.3/sql/field.h:3411
 
    #7 0x559fc80e8737 in field_conv_incompatible /data/src/10.3/sql/field_conv.cc:835
 
    #8 0x559fc80e87d4 in field_conv(Field*, Field*) /data/src/10.3/sql/field_conv.cc:848
 
    #9 0x559fc81675be in save_field_in_field /data/src/10.3/sql/item.cc:6724
 
    #10 0x559fc8167aba in Item_field::save_in_field(Field*, bool) /data/src/10.3/sql/item.cc:6770
 
    #11 0x559fc7929689 in fill_record(THD*, TABLE*, Field**, List<Item>&, bool, bool) /data/src/10.3/sql/sql_base.cc:8398
 
    #12 0x559fc7c819cd in select_unit::send_data(List<Item>&) /data/src/10.3/sql/sql_union.cc:128
 
    #13 0x559fc7b5ca32 in end_send /data/src/10.3/sql/sql_select.cc:19968
 
    #14 0x559fc7b54dd2 in evaluate_join_record /data/src/10.3/sql/sql_select.cc:19019
 
    #15 0x559fc7b539a8 in sub_select(JOIN*, st_join_table*, bool) /data/src/10.3/sql/sql_select.cc:18799
 
    #16 0x559fc7b51cc4 in do_select /data/src/10.3/sql/sql_select.cc:18339
 
    #17 0x559fc7aefe20 in JOIN::exec_inner() /data/src/10.3/sql/sql_select.cc:3636
 
    #18 0x559fc7aeda5d in JOIN::exec() /data/src/10.3/sql/sql_select.cc:3431
 
    #19 0x559fc7af0f5d 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:3835
 
    #20 0x559fc79acfc5 in mysql_derived_fill(THD*, LEX*, TABLE_LIST*) /data/src/10.3/sql/sql_derived.cc:1134
 
    #21 0x559fc79a76c6 in mysql_handle_single_derived(LEX*, TABLE_LIST*, unsigned int) /data/src/10.3/sql/sql_derived.cc:197
 
    #22 0x559fc7b291d0 in st_join_table::preread_init() /data/src/10.3/sql/sql_select.cc:12066
 
    #23 0x559fc7b5345c in sub_select(JOIN*, st_join_table*, bool) /data/src/10.3/sql/sql_select.cc:18767
 
    #24 0x559fc7b51cc4 in do_select /data/src/10.3/sql/sql_select.cc:18339
 
    #25 0x559fc7aefe20 in JOIN::exec_inner() /data/src/10.3/sql/sql_select.cc:3636
 
    #26 0x559fc7aeda5d in JOIN::exec() /data/src/10.3/sql/sql_select.cc:3431
 
    #27 0x559fc7af0f5d 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:3835
 
    #28 0x559fc7acfc7a in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.3/sql/sql_select.cc:375
 
    #29 0x559fc7a52406 in execute_sqlcom_select /data/src/10.3/sql/sql_parse.cc:6499
 
 
 
SUMMARY: AddressSanitizer: memcpy-param-overlap ??:0 ??



 Comments   
Comment by Sergey Vojtovich [ 2018-03-21 ]

serg, please review https://github.com/MariaDB/server/commit/6de643a580b4e706e0201927e43a033f5cb98970

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