addressSanitier issue with coverage-pspmod-vxworks_sysmon-testrunner

running addressSanitizer causes the following error:

==17384==ERROR: AddressSanitizer: global-buffer-overflow on address 0x556f8597a0c8 at pc 0x7f8af48bdf26 bp 0x7ffd76300bb0 sp 0x7ffd76300358
WRITE of size 32 at 0x556f8597a0c8 thread T0
    #0 0x7f8af48bdf25 in __interceptor_memset ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:795
    #1 0x556f8595bc20 in PCS_memset /home/vboxuser/Desktop/cFS/psp/unit-test-coverage/ut-stubs/src/libc-string-stubs.c:36
    #2 0x556f85959687 in vxworks_sysmon_update_stat /home/vboxuser/Desktop/cFS/psp/fsw/modules/vxworks_sysmon/vxworks_sysmon.c:66
    #3 0x556f85958ee2 in Test_UpdateStat_Nominal /home/vboxuser/Desktop/cFS/psp/unit-test-coverage/modules/vxworks_sysmon/src/coveragetest-vxworks_sysmon.c:302
    #4 0x556f85966190 in UtTest_Run /home/vboxuser/Desktop/cFS/osal/ut_assert/src/uttest.c:172
    #5 0x556f85966bdd in OS_Application_Run /home/vboxuser/Desktop/cFS/osal/ut_assert/src/utbsp.c:230
    #6 0x556f85967c4a in main /home/vboxuser/Desktop/cFS/osal/src/bsp/generic-linux/src/bsp_start.c:244
    #7 0x7f8af4683082 in __libc_start_main ../csu/libc-start.c:308
    #8 0x556f85956a5d in _start (/home/vboxuser/Desktop/cFS/build/native/default_cpu1/psp/unit-test-coverage/modules/vxworks_sysmon/coverage-pspmod-vxworks_sysmon-testrunner+0x8a5d)

0x556f8597a0c8 is located 8 bytes to the right of global variable 'vxworks_sysmon_global' defined in '/home/vboxuser/Desktop/cFS/psp/fsw/modules/vxworks_sysmon/vxworks_sysmon.c:45:24' (0x556f8597a080) of size 64
0x556f8597a0c8 is located 24 bytes to the left of global variable '__gcov0.vxworks_sysmon_DevCmd' defined in '<built-in>' (0x556f8597a0e0) of size 40
SUMMARY: AddressSanitizer: global-buffer-overflow ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:795 in __interceptor_memset
Shadow bytes around the buggy address:
  0x0aae70b273c0: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
  0x0aae70b273d0: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
  0x0aae70b273e0: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
  0x0aae70b273f0: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
  0x0aae70b27400: f9 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
=>0x0aae70b27410: 00 00 00 00 00 00 00 00 f9[f9]f9 f9 00 00 00 00
  0x0aae70b27420: 00 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 f9 f9
  0x0aae70b27430: f9 f9 f9 f9 00 00 00 00 00 00 00 00 00 00 00 00
  0x0aae70b27440: 00 00 00 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 f9
  0x0aae70b27450: 00 00 f9 f9 f9 f9 f9 f9 00 00 00 00 f9 f9 f9 f9
  0x0aae70b27460: 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 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
  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
==17384==ABORTING

To Reproduce Steps to reproduce the behavior:

Add in the following option: add_compile_options(-fsanitize=address -g) add_link_options(-fsanitize=address)
Compile and run normally.

Expected behavior A clear and concise description of what you expected to happen.

Code snips If applicable, add references to the software.

System observed on:

Hardware
OS: [e.g. Linux 4.4]
Versions [e.g. cFE 6.6, OSAL 4.2, PSP 1.3 for mcp750, any related apps]

Additional context Add any other context about the problem here.

Reporter Info Full name and company/organization if applicable

Anh Van, GSFC

nasa / PSP

addressSanitier issue with coverage-pspmod-vxworks_sysmon-testrunner #432