unit.mf_iocache failed in buildbot with ASAN stack-buffer-overflow

unit.mf_iocache                          w4 [ fail ]

        Test ended at 2019-09-11 12:55:52

CURRENT_TEST: unit.mf_iocache

1..277

# temp io_cache with encryption

ok 1 - open_cached_file, pos_in_file = 0, pos_in_mem = 0

ok 2 - small write, pos_in_file = 0, pos_in_mem = 100

ok 3 - large write, pos_in_file = 16384, pos_in_mem = 300

ok 4 - reinit with rewind, pos_in_file = 0, pos_in_mem = 250

ok 5 - large write, pos_in_file = 16384, pos_in_mem = 450

ok 6 - flush, pos_in_file = 16834, pos_in_mem = 0

ok 7 - reinit READ_CACHE, pos_in_file = 0, pos_in_mem = 0

ok 8 - file must be unreadable

ok 9 - small read, pos_in_file = 0, pos_in_mem = 50

ok 10 - large read, pos_in_file = 16384, pos_in_mem = 250

# temp io_cache without encryption

ok 11 - open_cached_file, pos_in_file = 0, pos_in_mem = 0

ok 12 - small write, pos_in_file = 0, pos_in_mem = 100

ok 13 - large write, pos_in_file = 16384, pos_in_mem = 300

ok 14 - reinit with rewind, pos_in_file = 250, pos_in_mem = 0

ok 15 - large write, pos_in_file = 16384, pos_in_mem = 450

ok 16 - flush, pos_in_file = 16834, pos_in_mem = 0

ok 17 - reinit READ_CACHE, pos_in_file = 0, pos_in_mem = 0

ok 18 - file must be readable

ok 19 - small read, pos_in_file = 0, pos_in_mem = 50

ok 20 - large read, pos_in_file = 16384, pos_in_mem = 250

# MDEV-9044 Binlog corruption in Galera

ok 21 - open_cached_file, pos_in_file = 0, pos_in_mem = 0

ok 22 - first write, pos_in_file = 0, pos_in_mem = 12

ok 23 - flush, pos_in_file = 12, pos_in_mem = 0

ok 24 - reinit WRITE_CACHE, pos_in_file = 0, pos_in_mem = 0

ok 25 - second write, pos_in_file = 0, pos_in_mem = 13

ok 26 - reinit READ_CACHE, pos_in_file = 0, pos_in_mem = 0

ok 27 - fill, pos_in_file = 0, pos_in_mem = 13

ok 28 - reinit READ_CACHE, pos_in_file = 0, pos_in_mem = 0

ok 29 - read 'second write'

# MDEV-10259- mysqld crash with certain statement length and order with Galera and encrypt-tmp-files=1

ok 30 - open_cached_file, pos_in_file = 0, pos_in_mem = 0

ok 31 - 200 write, pos_in_file = 0, pos_in_mem = 200

ok 32 - flush, pos_in_file = 200, pos_in_mem = 0

ok 33 - reinit READ_CACHE, pos_in_file = 0, pos_in_mem = 0

ok 34 - fill, pos_in_file = 0, pos_in_mem = 0

ok 35 - fill, pos_in_file = 0, pos_in_mem = 200

ok 36 - fill, pos_in_file = 0, pos_in_mem = 200

ok 37 - reinit WRITE_CACHE, pos_in_file = 0, pos_in_mem = 200

ok 38 - reinit READ_CACHE, pos_in_file = 0, pos_in_mem = 0

ok 39 - my_b_bytes_in_cache == 200

ok 40 - fill, pos_in_file = 0, pos_in_mem = 200

ok 41 - fill, pos_in_file = 0, pos_in_mem = 200

ok 42 - fill, pos_in_file = 0, pos_in_mem = 200

ok 43 - reinit WRITE_CACHE, pos_in_file = 0, pos_in_mem = 200

ok 44 - reinit READ_CACHE, pos_in_file = 0, pos_in_mem = 0

ok 45 - my_b_bytes_in_cache == 200

ok 46 - large read, pos_in_file = 0, pos_in_mem = 200

# MDEV-14014 Dump thread reads past last 'officially' written byte

ok 47 - open_cached_file, pos_in_file = 0, pos_in_mem = 0

ok 48 - buffer is written, pos_in_file = 0, pos_in_mem = 200

ok 49 - flush, pos_in_file = 200, pos_in_mem = 0

ok 50 - reinit READ_CACHE, pos_in_file = 0, pos_in_mem = 0

ok 51 - short read leaves buf_i[100..200-1] == 0

# MDEV-17133 Dump thread reads from the past

ok 52 - open_cached_file, pos_in_file = 0, pos_in_mem = 0

ok 53 - buffer is written, pos_in_file = 262144, pos_in_mem = 0

ok 54 - cache size as expected

ok 55 - flush, pos_in_file = 262144, pos_in_mem = 0

ok 56 - reinit READ_CACHE, pos_in_file = 0, pos_in_mem = 0

ok 57 - read of 19

ok 58 - rest of read 20392

ok 59 - read correct data

ok 60 - read of 19

ok 61 - rest of read 12564

ok 62 - read correct data

ok 63 - read of 19

ok 64 - rest of read 14416

ok 65 - read correct data

ok 66 - read of 19

ok 67 - rest of read 1868

ok 68 - read correct data

ok 69 - cache is read up to eof

ok 70 - total matches eof

ok 71 - read of 19

ok 72 - rest of read 19717

ok 73 - read correct data

ok 74 - read of 19

ok 75 - rest of read 13932

ok 76 - read correct data

ok 77 - read of 19

ok 78 - rest of read 15651

ok 79 - read correct data

ok 80 - read of 19

ok 81 - rest of read 18446744073709551597

ok 82 - read correct data

ok 83 - cache is read up to eof

ok 84 - total matches eof

ok 85 - read of 19

ok 86 - rest of read 13165

ok 87 - read correct data

ok 88 - read of 19

ok 89 - rest of read 17186

ok 90 - read correct data

ok 91 - read of 19

ok 92 - rest of read 13138

ok 93 - read correct data

ok 94 - read of 19

ok 95 - rest of read 13613

ok 96 - read correct data

ok 97 - cache is read up to eof

ok 98 - total matches eof

ok 99 - read of 19

ok 100 - rest of read 12451

ok 101 - read correct data

ok 102 - read of 19

ok 103 - rest of read 12924

ok 104 - read correct data

ok 105 - read of 19

ok 106 - rest of read 12531

ok 107 - read correct data

ok 108 - read of 19

ok 109 - rest of read 68311

=================================================================

==14694==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffcc7d4cb60 at pc 0x7fa5e0e80bec bp 0x7ffcc7d3cae0 sp 0x7ffcc7d3c288

WRITE of size 68330 at 0x7ffcc7d4cb60 thread T0

    #0 0x7fa5e0e80beb in __asan_memset (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x8cbeb)

    #1 0x406ab0 in mdev17133() /home/buildbot/buildbot/build/mariadb-10.3.19/unittest/sql/mf_iocache-t.cc:366

    #2 0x407394 in main /home/buildbot/buildbot/build/mariadb-10.3.19/unittest/sql/mf_iocache-t.cc:468

    #3 0x7fa5dfe5282f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)

    #4 0x403dc8 in _start (/home/buildbot/buildbot/build/mariadb-10.3.19/unittest/sql/mf_iocache-t+0x403dc8)

Address 0x7ffcc7d4cb60 is located in stack of thread T0 at offset 65568 in frame

    #0 0x40637e in mdev17133() /home/buildbot/buildbot/build/mariadb-10.3.19/unittest/sql/mf_iocache-t.cc:296

  This frame has 3 object(s):

    [32, 65568) 'buf_check'

    [65600, 327744) 'buf_i' <== Memory access at offset 65568 partially underflows this variable

    [327776, 589920) 'buf_o'

HINT: this may be a false positive if your program uses some custom stack unwind mechanism or swapcontext

      (longjmp and C++ exceptions *are* supported)

SUMMARY: AddressSanitizer: stack-buffer-overflow ??:0 __asan_memset

Shadow bytes around the buggy address:

  0x100018fa1910: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x100018fa1920: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x100018fa1930: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x100018fa1940: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x100018fa1950: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

=>0x100018fa1960: 00 00 00 00 00 00 00 00 00 00 00 00[f2]f2 f2 f2

  0x100018fa1970: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x100018fa1980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x100018fa1990: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x100018fa19a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x100018fa19b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

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

==14694==ABORTING

Bail out! Signal 6 thrown

# 277 tests planned,  0 failed,  109 was last executed

mysqltest failed with unexpected return code 255