AddressSanitizer: stack-buffer-overflow in test (track_object, some_leak)

[pcolberg]

On Ubuntu 20.04 (and Rocky Linux 8 but not other OS) using commit 476fd47, the tests (track_object, link) and (track_object, some_leak) trigger a stack-buffer-overflow in address sanitizer.

export AOCL_BOARD_PACKAGE_ROOT="$PWD"/test/board/a10_ref
mkdir -p build/debug && cd build/debug
cmake -G Ninja ../.. -DCMAKE_BUILD_TYPE=Debug -DACL_WITH_ASAN=ON
ninja && test/acl_test -v

sizeof platform 753160
sizeof context 1648
sizeof command queue 232. Initially allocated 1024 queues
sizeof event 400
sizeof cl_mem 6360
sizeof kernel 248
sizeof device_op_queue 214144
CreateBuffer
CreateBuffer Finished:  623000000100
TEST(acl_usm, memfill_usm)CreateBuffer
CreateBuffer Finished:  623000001d00
CreateBuffer
CreateBuffer Finished:  623000003900
acl_do_physical_buffer_allocation
resizing reserved_allocations, physical_device_id:0, target_size:1 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
 - 16 ms
TEST(acl_usm, memcpy_usm)CreateBuffer
CreateBuffer Finished:  623000005500
CreateBuffer
CreateBuffer Finished:  623000007100
acl_do_physical_buffer_allocation
resizing reserved_allocations, physical_device_id:0, target_size:1 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
CreateBuffer
CreateBuffer Finished:  623000008d00
acl_do_physical_buffer_allocation
resizing reserved_allocations, physical_device_id:0, target_size:1 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20800 - 55555aa20c00 
 - 125 ms
TEST(acl_usm, meminfo_usm)CreateBuffer
CreateBuffer Finished:  623000001d00
CreateBuffer
CreateBuffer Finished:  623000003900
acl_do_physical_buffer_allocation
resizing reserved_allocations, physical_device_id:0, target_size:1 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
CreateBuffer
CreateBuffer Finished:  623000000100
acl_do_physical_buffer_allocation
resizing reserved_allocations, physical_device_id:0, target_size:1 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
 - 1 ms
TEST(acl_usm, alloc_and_free_host_usm)CreateBuffer
CreateBuffer Finished:  62300000a900
CreateBuffer
CreateBuffer Finished:  62300000c500
CreateBuffer
CreateBuffer Finished:  62300000e100
 - 2 ms
TEST(acl_usm, alloc_and_free_shared_usm)CreateBuffer
CreateBuffer Finished:  62300000fd00
 - 1 ms
TEST(acl_usm, buffer_location_usm)CreateBuffer
CreateBuffer Finished:  623000011900
CreateBuffer
CreateBuffer Finished:  623000013500
acl_do_physical_buffer_allocation
resizing reserved_allocations, physical_device_id:0, target_size:1 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
 - 1 ms
TEST(acl_usm, alloc_and_free_device_usm)CreateBuffer
CreateBuffer Finished:  623000015100
CreateBuffer
CreateBuffer Finished:  623000016d00
acl_do_physical_buffer_allocation
resizing reserved_allocations, physical_device_id:0, target_size:1 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
CreateBuffer
CreateBuffer Finished:  623000018900
acl_do_physical_buffer_allocation
resizing reserved_allocations, physical_device_id:0, target_size:1 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
CreateBuffer
CreateBuffer Finished:  62300001a500
acl_do_physical_buffer_allocation
resizing reserved_allocations, physical_device_id:0, target_size:1 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
CreateBuffer
CreateBuffer Finished:  62300001c100
acl_do_physical_buffer_allocation
resizing reserved_allocations, physical_device_id:0, target_size:1 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
CreateBuffer
CreateBuffer Finished:  62300001dd00
acl_do_physical_buffer_allocation
resizing reserved_allocations, physical_device_id:0, target_size:1 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
CreateBuffer
CreateBuffer Finished:  62300001f900
acl_do_physical_buffer_allocation
resizing reserved_allocations, physical_device_id:0, target_size:1 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
CreateBuffer
CreateBuffer Finished:  623000021500
acl_do_physical_buffer_allocation
resizing reserved_allocations, physical_device_id:0, target_size:1 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20800 - 55555aa20c00 
 - 2 ms
TEST(acl_thread, kernel_and_printf_callback)CreateBuffer
CreateBuffer Finished:  623000023100
CreateBuffer
CreateBuffer Finished:  623000024d00
CreateBuffer
CreateBuffer Finished:  623000026900
CreateBuffer
CreateBuffer Finished:  623000028500
kernel args
arg 0 mem_obj 623000024d00 regular buffer needed_physical_id 0 needed_mem_id 0 resizing reserved_allocations, physical_device_id:0, target_size:1 
needs reservation acl_reserve_buffer_block mem:623000024d00, region:55555a38fa68, physical_device_id:0, target_mem_id:0 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
acl_reserve_buffer_block finished block_allocation:60400000e510, range:55555aa20400 - 55555aa20800 
count 1 
arg 1 const
arg 2 mem_obj 623000026900 regular buffer needed_physical_id 0 needed_mem_id 0 resizing reserved_allocations, physical_device_id:0, target_size:1 
needs reservation acl_reserve_buffer_block mem:623000026900, region:55555a38fa68, physical_device_id:0, target_mem_id:0 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20800 - 55555aa20c00 
acl_reserve_buffer_block finished block_allocation:60400000e550, range:55555aa20800 - 55555aa20c00 
count 1 
arg 3 local
arg 4 mem_obj 623000028500 regular buffer needed_physical_id 0 needed_mem_id 0 resizing reserved_allocations, physical_device_id:0, target_size:1 
needs reservation acl_reserve_buffer_block mem:623000028500, region:55555a38fa68, physical_device_id:0, target_mem_id:0 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20c00 - 55555aa21000 
acl_reserve_buffer_block finished block_allocation:60400000e590, range:55555aa20c00 - 55555aa21000 
count 1 
acl_mem_migrate_buffer
object 0, mem 623000024d00, count 1:allocation was deferred
already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_mem_migrate_buffer
object 1, mem 623000026900, count 1:allocation was deferred
already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_mem_migrate_buffer
object 2, mem 623000028500, count 1:allocation was deferred
already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_launch_kernel
 - 1 ms
TEST(envsets, test) - 0 ms
TEST(Min, basic) - 0 ms
TEST(acl_svm, memfill_svm)CreateBuffer
CreateBuffer Finished:  62300002a100
 - 1 ms
TEST(acl_svm, memcpy_svm)CreateBuffer
CreateBuffer Finished:  62300002bd00
 - 1 ms
TEST(acl_svm, alloc_and_free_svm)CreateBuffer
CreateBuffer Finished:  62300002d900
 - 2 ms
TEST(support, glob) - 15 ms
TEST(support, realpath) - 3 ms
TEST(support, make_path_to_dir) - 32 ms
TEST(from_source, link_program)CreateBuffer
CreateBuffer Finished:  62300002f500
CreateBuffer
CreateBuffer Finished:  623000031100
 - 2 ms
TEST(from_source, compile_program)CreateBuffer
CreateBuffer Finished:  623000032d00
CreateBuffer
CreateBuffer Finished:  623000034900
 - 1 ms
TEST(from_source, offline_mode_build_failure)CreateBuffer
CreateBuffer Finished:  623000036500
CreateBuffer
CreateBuffer Finished:  623000038100
 - 1 ms
TEST(from_source, online_mode)CreateBuffer
CreateBuffer Finished:  623000039d00
CreateBuffer
CreateBuffer Finished:  62300003b900
 - 4473 ms
TEST(from_source, make_prog_dir_and_build_command)CreateBuffer
CreateBuffer Finished:  62300003d500
CreateBuffer
CreateBuffer Finished:  62300003f100
 - 4799 ms
TEST(from_source, hash_dir_name)CreateBuffer
CreateBuffer Finished:  623000040d00
 - 1 ms
TEST(acl_program, build_info)CreateBuffer
CreateBuffer Finished:  623000042900
CreateBuffer
CreateBuffer Finished:  623000044500
 - 1 ms
TEST(acl_program, build_good)CreateBuffer
CreateBuffer Finished:  623000046100
CreateBuffer
CreateBuffer Finished:  623000047d00
 - 1 ms
TEST(acl_program, program_info)CreateBuffer
CreateBuffer Finished:  623000049900
CreateBuffer
CreateBuffer Finished:  62300004b500
 - 2 ms
TEST(acl_program, build_ok_probe_data)CreateBuffer
CreateBuffer Finished:  62300004d100
CreateBuffer
CreateBuffer Finished:  62300004ed00
 - 1 ms
TEST(acl_program, build_bad_invalid_bin_loaded)CreateBuffer
CreateBuffer Finished:  623000050900
CreateBuffer
CreateBuffer Finished:  623000052500
 - 1 ms
TEST(acl_program, build_bad)CreateBuffer
CreateBuffer Finished:  623000054100
CreateBuffer
CreateBuffer Finished:  623000055d00
 - 1 ms
TEST(acl_program, create_from_builtin)CreateBuffer
CreateBuffer Finished:  623000057900
CreateBuffer
CreateBuffer Finished:  623000059500
 - 1 ms
TEST(acl_program, create_from_binary)CreateBuffer
CreateBuffer Finished:  62300005b100
CreateBuffer
CreateBuffer Finished:  62300005cd00
 - 1 ms
TEST(acl_program, create_from_binary_bad)CreateBuffer
CreateBuffer Finished:  62300005e900
CreateBuffer
CreateBuffer Finished:  623000060500
 - 1 ms
TEST(acl_program, create_from_source)CreateBuffer
CreateBuffer Finished:  623000062100
CreateBuffer
CreateBuffer Finished:  623000063d00
 - 1 ms
TEST(acl_program, create_from_source_bad)CreateBuffer
CreateBuffer Finished:  623000065900
CreateBuffer
CreateBuffer Finished:  623000067500
 - 1 ms
TEST(acl_program, retain_release_validity)CreateBuffer
CreateBuffer Finished:  623000069100
CreateBuffer
CreateBuffer Finished:  62300006ad00
 - 1 ms
TEST(acl_program, valid)CreateBuffer
CreateBuffer Finished:  62300006c900
CreateBuffer
CreateBuffer Finished:  623000070100
 - 1 ms
TEST(acl_program, link)CreateBuffer
CreateBuffer Finished:  623000071d00
CreateBuffer
CreateBuffer Finished:  623000073900
 - 1 ms
TEST(acl_no_profile, profile_info)CreateBuffer
CreateBuffer Finished:  623000075500
CreateBuffer
CreateBuffer Finished:  623000077100
kernel args
arg 0 mem_obj 623000077100 regular buffer needed_physical_id 0 needed_mem_id 0 resizing reserved_allocations, physical_device_id:0, target_size:1 
needs reservation acl_reserve_buffer_block mem:623000077100, region:55555a38fa68, physical_device_id:0, target_mem_id:0 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
acl_reserve_buffer_block finished block_allocation:604000043950, range:55555aa20400 - 55555aa20800 
count 1 
arg 1 mem_obj 623000077100 regular buffer needed_physical_id 0 needed_mem_id 0 count 2 
arg 2 mem_obj 623000077100 regular buffer needed_physical_id 0 needed_mem_id 0 count 3 
acl_mem_migrate_buffer
object 0, mem 623000077100, count 3:allocation was deferred
already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_mem_migrate_buffer
object 1, mem 623000077100, count 2:already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_mem_migrate_buffer
object 2, mem 623000077100, count 1:already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_launch_kernel
 - 2 ms
TEST(acl_no_profile, no_profiler)CreateBuffer
CreateBuffer Finished:  623000078d00
CreateBuffer
CreateBuffer Finished:  62300007a900
kernel args
arg 0 mem_obj 62300007a900 regular buffer needed_physical_id 0 needed_mem_id 0 resizing reserved_allocations, physical_device_id:0, target_size:1 
needs reservation acl_reserve_buffer_block mem:62300007a900, region:55555a38fa68, physical_device_id:0, target_mem_id:0 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
acl_reserve_buffer_block finished block_allocation:604000049a50, range:55555aa20400 - 55555aa20800 
count 1 
arg 1 mem_obj 62300007a900 regular buffer needed_physical_id 0 needed_mem_id 0 count 2 
arg 2 mem_obj 62300007a900 regular buffer needed_physical_id 0 needed_mem_id 0 count 3 
acl_mem_migrate_buffer
object 0, mem 62300007a900, count 3:allocation was deferred
already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_mem_migrate_buffer
object 1, mem 62300007a900, count 2:already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_mem_migrate_buffer
object 2, mem 62300007a900, count 1:already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_launch_kernel
 - 2 ms
TEST(acl_profile, profile_info)CreateBuffer
CreateBuffer Finished:  62300007c500
CreateBuffer
CreateBuffer Finished:  62300007e100
CreateBuffer
CreateBuffer Finished:  62300007fd00
kernel args
arg 0 mem_obj 62300007fd00 regular buffer needed_physical_id 0 needed_mem_id 0 resizing reserved_allocations, physical_device_id:0, target_size:1 
needs reservation acl_reserve_buffer_block mem:62300007fd00, region:55555a38fa68, physical_device_id:0, target_mem_id:0 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
acl_reserve_buffer_block finished block_allocation:60400004f890, range:55555aa20400 - 55555aa20800 
count 1 
arg 1 mem_obj 62300007fd00 regular buffer needed_physical_id 0 needed_mem_id 0 count 2 
arg 2 mem_obj 62300007fd00 regular buffer needed_physical_id 0 needed_mem_id 0 count 3 
acl_mem_migrate_buffer
object 0, mem 62300007fd00, count 3:allocation was deferred
already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_mem_migrate_buffer
object 1, mem 62300007fd00, count 2:already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_mem_migrate_buffer
object 2, mem 62300007fd00, count 1:already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_launch_kernel
 - 3 ms
TEST(acl_profile, profiler_host_query_api)CreateBuffer
CreateBuffer Finished:  623000081900
CreateBuffer
CreateBuffer Finished:  623000083500
 - 2 ms
TEST(acl_profile, init_profiler)CreateBuffer
CreateBuffer Finished:  623000085100
CreateBuffer
CreateBuffer Finished:  623000086d00
 - 2 ms
TEST(acl_profile, shared_counter_checks)CreateBuffer
CreateBuffer Finished:  623000088900
CreateBuffer
CreateBuffer Finished:  62300008a500
 - 1 ms
TEST(acl_profile, valid_checks)CreateBuffer
CreateBuffer Finished:  62300008c100
CreateBuffer
CreateBuffer Finished:  62300008dd00
 - 1 ms
TEST(acl_profile, op_type_checks)CreateBuffer
CreateBuffer Finished:  62300008f900
CreateBuffer
CreateBuffer Finished:  623000091500
CreateBuffer
CreateBuffer Finished:  623000093100
kernel args
arg 0 mem_obj 623000093100 regular buffer needed_physical_id 0 needed_mem_id 0 resizing reserved_allocations, physical_device_id:0, target_size:1 
needs reservation acl_reserve_buffer_block mem:623000093100, region:55555a38fa68, physical_device_id:0, target_mem_id:0 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
acl_reserve_buffer_block finished block_allocation:6040000648d0, range:55555aa20400 - 55555aa20800 
count 1 
arg 1 mem_obj 623000093100 regular buffer needed_physical_id 0 needed_mem_id 0 count 2 
arg 2 mem_obj 623000093100 regular buffer needed_physical_id 0 needed_mem_id 0 count 3 
acl_mem_migrate_buffer
object 0, mem 623000093100, count 3:allocation was deferred
already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_mem_migrate_buffer
object 1, mem 623000093100, count 2:already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_mem_migrate_buffer
object 2, mem 623000093100, count 1:already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_launch_kernel
 - 2 ms
TEST(acl_profile, open_close_file)CreateBuffer
CreateBuffer Finished:  623000094d00
CreateBuffer
CreateBuffer Finished:  623000096900
CreateBuffer
CreateBuffer Finished:  623000098500
kernel args
arg 0 mem_obj 623000098500 regular buffer needed_physical_id 0 needed_mem_id 0 resizing reserved_allocations, physical_device_id:0, target_size:1 
needs reservation acl_reserve_buffer_block mem:623000098500, region:55555a38fa68, physical_device_id:0, target_mem_id:0 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
acl_reserve_buffer_block finished block_allocation:60400006b450, range:55555aa20400 - 55555aa20800 
count 1 
arg 1 mem_obj 623000098500 regular buffer needed_physical_id 0 needed_mem_id 0 count 2 
arg 2 mem_obj 623000098500 regular buffer needed_physical_id 0 needed_mem_id 0 count 3 
acl_mem_migrate_buffer
object 0, mem 623000098500, count 3:allocation was deferred
already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_mem_migrate_buffer
object 1, mem 623000098500, count 2:already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_mem_migrate_buffer
object 2, mem 623000098500, count 1:already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_launch_kernel
 - 4 ms
TEST(acl_profile, profiler)CreateBuffer
CreateBuffer Finished:  62300009a100
CreateBuffer
CreateBuffer Finished:  62300009bd00
CreateBuffer
CreateBuffer Finished:  62300009d900
kernel args
arg 0 mem_obj 62300009d900 regular buffer needed_physical_id 0 needed_mem_id 0 resizing reserved_allocations, physical_device_id:0, target_size:1 
needs reservation acl_reserve_buffer_block mem:62300009d900, region:55555a38fa68, physical_device_id:0, target_mem_id:0 
acl_allocate_block size:400, working_range:55555aa20400 - 55555ca20400, initial try:55555aa20400 
acl_allocate_block finished: result:1, block_allocation:55555aa20400 - 55555aa20800 
acl_reserve_buffer_block finished block_allocation:604000077c50, range:55555aa20400 - 55555aa20800 
count 1 
arg 1 mem_obj 62300009d900 regular buffer needed_physical_id 0 needed_mem_id 0 count 2 
arg 2 mem_obj 62300009d900 regular buffer needed_physical_id 0 needed_mem_id 0 count 3 
acl_mem_migrate_buffer
object 0, mem 62300009d900, count 3:allocation was deferred
already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_mem_migrate_buffer
object 1, mem 62300009d900, count 2:already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_mem_migrate_buffer
object 2, mem 62300009d900, count 1:already at dest
Memory op is already complete
acl_mem_migrate_buffer finished
acl_launch_kernel
 - 3 ms
TEST(track_object, some_leak)=================================================================
==2507==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7fffffffc7a8 at pc 0x2aaaaab4da7d bp 0x7fffffffb570 sp 0x7fffffffad18
READ of size 14 at 0x7fffffffc7a8 thread T0
    #0 0x2aaaaab4da7c in __interceptor_strlen ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:354
    #1 0x5555557f2262 in std::char_traits<char>::length(char const*) /usr/include/c++/9/bits/char_traits.h:342
    #2 0x5555557f2262 in std::string::assign(char const*) /usr/include/c++/9/bits/basic_string.h:4403
    #3 0x5555557f2262 in std::string::operator=(char const*) /usr/include/c++/9/bits/basic_string.h:3726
    #4 0x5555557f2262 in acl_init_platform ../../src/acl_platform.cpp:311
    #5 0x55555566e6c8 in acl_init_from_hal_discovery ../../src/acl_globals.cpp:211
    #6 0x5555557ec844 in clGetPlatformIDsIntelFPGA ../../src/acl_platform.cpp:134
    #7 0x5555557ec9d5 in clGetPlatformIDs ../../src/acl_platform.cpp:157
    #8 0x555555eb26b7 in CppUTestGrouptrack_object::load_platform() ../../test/acl_platform_test.cpp:444
    #9 0x555555eb26b7 in track_object_some_leak_Test::testBody() ../../test/acl_platform_test.cpp:521
    #10 0x555556057158 in Utest::executePlatformSpecificTestBody() ../../lib/CppUTest/src/UtestPlatformGcc.cpp:82
    #11 0x5555560535e7 in Utest::runInThread() ../../lib/CppUTest/src/Utest.cpp:99
    #12 0x555555ebd034 in track_object_some_leak_Test::runInThreadOnCopy() ../../test/acl_platform_test.cpp:518
    #13 0x5555560574f6 in Utest::executePlatformSpecificRunInThreads() ../../lib/CppUTest/src/UtestPlatformGcc.cpp:175
    #14 0x555556053538 in Utest::run(TestResult&) ../../lib/CppUTest/src/Utest.cpp:83
    #15 0x555556053441 in Utest::runOneTest(TestPlugin*, TestResult&) ../../lib/CppUTest/src/Utest.cpp:69
    #16 0x555556057296 in Utest::executePlatformSpecificRunOneTest(TestPlugin*, TestResult&) ../../lib/CppUTest/src/UtestPlatformGcc.cpp:100
    #17 0x5555560533ac in Utest::runOneTestWithPlugins(TestPlugin*, TestResult&) ../../lib/CppUTest/src/Utest.cpp:63
    #18 0x55555605176d in TestRegistry::runAllTests(TestResult&) ../../lib/CppUTest/src/TestRegistry.cpp:72
    #19 0x555556048175 in CommandLineTestRunner::runAllTests() ../../lib/CppUTest/src/CommandLineTestRunner.cpp:105
    #20 0x555556048502 in CommandLineTestRunner::runAllTestsMain() ../../lib/CppUTest/src/CommandLineTestRunner.cpp:81
    #21 0x555556048757 in CommandLineTestRunner::RunAllTests(int, char const**) ../../lib/CppUTest/src/CommandLineTestRunner.cpp:63
    #22 0x55555600ca1b in main ../../test/acl_test.cpp:90
    #23 0x2aaaab8ea082 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24082)
    #24 0x5555555f12cd in _start (/nfs/site/disks/swuser_work_pcolberg/git/github.com/intel/fpga-runtime-for-opencl/build/debug/test/acl_test+0x9d2cd)

Address 0x7fffffffc7a8 is located in stack of thread T0 at offset 4168 in frame
    #0 0x555555eb200d in track_object_some_leak_Test::testBody() ../../test/acl_platform_test.cpp:518

  This frame has 89 object(s):
    [32, 36) 'num' (line 443)
    [48, 56) '<unknown>'
    [80, 88) '<unknown>'
    [112, 120) '<unknown>'
    [144, 152) '<unknown>'
    [176, 184) '<unknown>'
    [208, 216) '<unknown>'
    [240, 248) '<unknown>'
    [272, 280) '<unknown>'
    [304, 312) '<unknown>'
    [336, 344) '<unknown>'
    [368, 376) '<unknown>'
    [400, 408) '<unknown>'
    [432, 440) '<unknown>'
    [464, 472) '<unknown>'
    [496, 504) '<unknown>'
    [528, 536) '<unknown>'
    [560, 568) '<unknown>'
    [592, 600) '<unknown>'
    [624, 632) '<unknown>'
    [656, 664) '<unknown>'
    [688, 696) '<unknown>'
    [720, 728) '<unknown>'
    [752, 760) '<unknown>'
    [784, 792) '<unknown>'
    [816, 824) '<unknown>'
    [848, 856) '<unknown>'
    [880, 888) '<unknown>'
    [912, 920) '<unknown>'
    [944, 952) '<unknown>'
    [976, 984) '<unknown>'
    [1008, 1016) '<unknown>'
    [1040, 1048) '<unknown>'
    [1072, 1080) '<unknown>'
    [1104, 1112) '<unknown>'
    [1136, 1144) '<unknown>'
    [1168, 1176) '<unknown>'
    [1200, 1208) '<unknown>'
    [1232, 1240) '<unknown>'
    [1264, 1272) '<unknown>'
    [1296, 1304) '<unknown>'
    [1328, 1336) '<unknown>'
    [1360, 1368) '<unknown>'
    [1392, 1400) '<unknown>'
    [1424, 1432) '<unknown>'
    [1456, 1464) '<unknown>'
    [1488, 1496) '<unknown>'
    [1520, 1528) '<unknown>'
    [1552, 1560) '<unknown>'
    [1584, 1592) '<unknown>'
    [1616, 1624) '<unknown>'
    [1648, 1656) '<unknown>'
    [1680, 1688) '<unknown>'
    [1712, 1720) '<unknown>'
    [1744, 1752) '<unknown>'
    [1776, 1784) '<unknown>'
    [1808, 1816) '<unknown>'
    [1840, 1848) '<unknown>'
    [1872, 1880) '<unknown>'
    [1904, 1928) 'live_vec' (line 519)
    [1968, 2008) '_f' (line 525)
    [2048, 2088) '_f' (line 540)
    [2128, 2168) '_f' (line 542)
    [2208, 2248) '_f' (line 543)
    [2288, 2328) '_f' (line 544)
    [2368, 2408) '_f' (line 546)
    [2448, 2488) '_f' (line 547)
    [2528, 2568) '_f' (line 548)
    [2608, 2648) '_f' (line 550)
    [2688, 2728) '_f' (line 551)
    [2768, 2808) '_f' (line 552)
    [2848, 2888) '_f' (line 554)
    [2928, 2968) '_f' (line 555)
    [3008, 3048) '_f' (line 556)
    [3088, 3128) '_f' (line 558)
    [3168, 3208) '_f' (line 559)
    [3248, 3288) '_f' (line 560)
    [3328, 3368) '_f' (line 562)
    [3408, 3448) '_f' (line 563)
    [3488, 3528) '_f' (line 564)
    [3568, 3608) '_f' (line 566)
    [3648, 3688) '_f' (line 567)
    [3728, 3768) '_f' (line 568)
    [3808, 3848) '_f' (line 570)
    [3888, 3928) '_f' (line 571)
    [3968, 4008) '_f' (line 572)
    [4048, 4088) '_f' (line 594)
    [4128, 4168) '_f' (line 444) <== Memory access at offset 4168 overflows this variable
    [4208, 4248) '_f' (line 445)
HINT: this may be a false positive if your program uses some custom stack unwind mechanism, swapcontext or vfork
      (longjmp and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: stack-buffer-overflow ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:354 in __interceptor_strlen
Shadow bytes around the buggy address:
  0x10007fff78a0: 00 00 00 00 00 f2 f2 f2 f2 f2 00 00 00 00 00 f2
  0x10007fff78b0: f2 f2 f2 f2 00 00 00 00 00 f2 f2 f2 f2 f2 00 00
  0x10007fff78c0: 00 00 00 f2 f2 f2 f2 f2 00 00 00 00 00 f2 f2 f2
  0x10007fff78d0: f2 f2 00 00 00 00 00 f2 f2 f2 f2 f2 00 00 00 00
  0x10007fff78e0: 00 f2 f2 f2 f2 f2 00 00 00 00 00 f2 f2 f2 f2 f2
=>0x10007fff78f0: 00 00 00 00 00[f2]f2 f2 f2 f2 00 00 00 00 00 f3
  0x10007fff7900: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
  0x10007fff7910: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x10007fff7920: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x10007fff7930: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1
  0x10007fff7940: 00 00 00 00 00 00 00 00 00 00 00 00 f3 f3 f3 f3
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
==2507==ABORTING

[pcolberg]

The glibc manual is clear about environment variables and multi-threading:

Modifications of environment variables are not allowed in multi-threaded programs.

The unit tests modify environment variables in multi-threaded sections, but they only run a single thread by default; hence it is not clear whether this is causing the issue.

[pcolberg]

When running only the failed test, it passes address sanitizer:

test/acl_test -g track_object -n some_leak

sizeof platform 753160
sizeof context 1648
sizeof command queue 232. Initially allocated 1024 queues
sizeof event 400
sizeof cl_mem 6360
sizeof kernel 248
sizeof device_op_queue 214144
CreateBuffer
CreateBuffer Finished:  623000000100
CreateBuffer
CreateBuffer Finished:  623000001d00
CreateBuffer
resizing reserved_allocations, physical_device_id:0, target_size:1 
CreateBuffer Finished:  623000003900
CreateBuffer
resizing reserved_allocations, physical_device_id:0, target_size:1 
CreateBuffer Finished:  623000005500
.
OK (224 tests, 1 ran, 46 checks, 0 ignored, 223 filtered out, 2 ms)

[pcolberg]

Replacing all occurrences of MT_TEST() and MT_TEST_GROUP() with TEST() and TEST_GROUP(), respectively and eliminating syncThreads(), threadNum(), and ScopedLock to ensure single-threaded tests does not resolve the issue.

[pcolberg]

Commenting the whole test (track_object, some_leak) shifts the issue to (track_object, link):

TEST(track_object, link)=================================================================
==12956==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7fffffffc7a8 at pc 0x2aaaaab4da7d bp 0x7fffffffc4e0 sp 0x7fffffffbc88
READ of size 14 at 0x7fffffffc7a8 thread T0
    #0 0x2aaaaab4da7c in __interceptor_strlen ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:354
    #1 0x5555557f1262 in std::char_traits<char>::length(char const*) /usr/include/c++/9/bits/char_traits.h:342
    #2 0x5555557f1262 in std::string::assign(char const*) /usr/include/c++/9/bits/basic_string.h:4403
    #3 0x5555557f1262 in std::string::operator=(char const*) /usr/include/c++/9/bits/basic_string.h:3726
    #4 0x5555557f1262 in acl_init_platform ../../src/acl_platform.cpp:311
    #5 0x55555566d6c8 in acl_init_from_hal_discovery ../../src/acl_globals.cpp:211
    #6 0x5555557eb844 in clGetPlatformIDsIntelFPGA ../../src/acl_platform.cpp:134
    #7 0x5555557eb9d5 in clGetPlatformIDs ../../src/acl_platform.cpp:157
    #8 0x555555eafead in CppUTestGrouptrack_object::load_platform() ../../test/acl_platform_test.cpp:444
    #9 0x555555eafead in track_object_link_Test::testBody() ../../test/acl_platform_test.cpp:513
    #10 0x55555604e1f2 in Utest::executePlatformSpecificTestBody() ../../lib/CppUTest/src/UtestPlatformGcc.cpp:82
    #11 0x55555604a681 in Utest::runInThread() ../../lib/CppUTest/src/Utest.cpp:99
    #12 0x555555eb56b6 in track_object_link_Test::runInThreadOnCopy() ../../test/acl_platform_test.cpp:512
    #13 0x55555604e590 in Utest::executePlatformSpecificRunInThreads() ../../lib/CppUTest/src/UtestPlatformGcc.cpp:175
    #14 0x55555604a5d2 in Utest::run(TestResult&) ../../lib/CppUTest/src/Utest.cpp:83
    #15 0x55555604a4db in Utest::runOneTest(TestPlugin*, TestResult&) ../../lib/CppUTest/src/Utest.cpp:69
    #16 0x55555604e330 in Utest::executePlatformSpecificRunOneTest(TestPlugin*, TestResult&) ../../lib/CppUTest/src/UtestPlatformGcc.cpp:100
    #17 0x55555604a446 in Utest::runOneTestWithPlugins(TestPlugin*, TestResult&) ../../lib/CppUTest/src/Utest.cpp:63
    #18 0x555556048807 in TestRegistry::runAllTests(TestResult&) ../../lib/CppUTest/src/TestRegistry.cpp:72
    #19 0x55555603f20f in CommandLineTestRunner::runAllTests() ../../lib/CppUTest/src/CommandLineTestRunner.cpp:105
    #20 0x55555603f59c in CommandLineTestRunner::runAllTestsMain() ../../lib/CppUTest/src/CommandLineTestRunner.cpp:81
    #21 0x55555603f7f1 in CommandLineTestRunner::RunAllTests(int, char const**) ../../lib/CppUTest/src/CommandLineTestRunner.cpp:63
    #22 0x555556003ab5 in main ../../test/acl_test.cpp:90
    #23 0x2aaaab8ea082 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24082)
    #24 0x5555555f02cd in _start (/nfs/site/disks/swuser_work_pcolberg/git/github.com/intel/fpga-runtime-for-opencl/build/debug/test/acl_test+0x9c2cd)

Address 0x7fffffffc7a8 is located in stack of thread T0 at offset 232 in frame
    #0 0x555555eafda7 in track_object_link_Test::testBody() ../../test/acl_platform_test.cpp:512

  This frame has 7 object(s):
    [48, 52) 'num' (line 443)
    [64, 72) '<unknown>'
    [96, 104) '<unknown>'
    [128, 136) '<unknown>'
    [160, 168) '<unknown>'
    [192, 232) '_f' (line 444) <== Memory access at offset 232 overflows this variable
    [272, 312) '_f' (line 445)
HINT: this may be a false positive if your program uses some custom stack unwind mechanism, swapcontext or vfork
      (longjmp and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: stack-buffer-overflow ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:354 in __interceptor_strlen
Shadow bytes around the buggy address:
  0x10007fff78a0: f1 f1 f1 f1 f1 f1 04 f2 00 f3 f3 f3 00 00 00 00
  0x10007fff78b0: 00 00 00 00 f1 f1 f1 f1 04 f3 f3 f3 00 00 00 00
  0x10007fff78c0: 00 00 00 00 00 00 f1 f1 f1 f1 00 f3 f3 f3 00 00
  0x10007fff78d0: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 f1 f1 04 f2
  0x10007fff78e0: 00 f2 f2 f2 00 f2 f2 f2 00 f2 f2 f2 00 f2 f2 f2
=>0x10007fff78f0: 00 00 00 00 00[f2]f2 f2 f2 f2 00 00 00 00 00 f3
  0x10007fff7900: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
  0x10007fff7910: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x10007fff7920: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x10007fff7930: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1
  0x10007fff7940: 00 00 00 00 00 00 00 00 00 00 00 00 f3 f3 f3 f3
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
==12956==ABORTING

[pcolberg]

Setting the environment variable directly in the test passes:

MT_TEST_GROUP(track_object) {};

MT_TEST(track_object, link) {
  setenv("CL_CONTEXT_OFFLINE_DEVICE_INTELFPGA", ACLTEST_DEFAULT_BOARD, 1);
  cl_uint num = 0;
  cl_platform_id m_platform;
  CHECK_EQUAL(CL_SUCCESS, clGetPlatformIDs(1, &m_platform, &num));
  CHECK_EQUAL(1, num);
  clTrackLiveObjectsIntelFPGA(0); 
  clReportLiveObjectsIntelFPGA(0, 0, 0);
}

[pcolberg]

Resetting the environment variable at the beginning of each test passes, on 476fd47:

diff --git a/test/acl_platform_test.cpp b/test/acl_platform_test.cpp
index 3ecf230..a9eac2e 100644
--- a/test/acl_platform_test.cpp
+++ b/test/acl_platform_test.cpp
@@ -510,12 +510,14 @@ TEST_GROUP_STATIC(track_object, cl_command_queue, m_cq1);
 TEST_GROUP_STATIC(track_object, cl_event, m_event);
 
 MT_TEST(track_object, link) {
+  setenv("CL_CONTEXT_OFFLINE_DEVICE_INTELFPGA", ACLTEST_DEFAULT_BOARD, 1);
   load_platform();
   clTrackLiveObjectsIntelFPGA(0);
   clReportLiveObjectsIntelFPGA(0, 0, 0);
 }
 
 MT_TEST(track_object, some_leak) {
+  setenv("CL_CONTEXT_OFFLINE_DEVICE_INTELFPGA", ACLTEST_DEFAULT_BOARD, 1);
   live_info_vec_t live_vec;
 
   load_platform();

[pcolberg]

Reinvoking setup() also passes, on 476fd47:

diff --git a/test/acl_platform_test.cpp b/test/acl_platform_test.cpp
index 3ecf230..cd56dc1 100644
--- a/test/acl_platform_test.cpp
+++ b/test/acl_platform_test.cpp
@@ -510,12 +510,14 @@ TEST_GROUP_STATIC(track_object, cl_command_queue, m_cq1);
 TEST_GROUP_STATIC(track_object, cl_event, m_event);
 
 MT_TEST(track_object, link) {
+  setup();
   load_platform();
   clTrackLiveObjectsIntelFPGA(0);
   clReportLiveObjectsIntelFPGA(0, 0, 0);
 }
 
 MT_TEST(track_object, some_leak) {
+  setup();
   live_info_vec_t live_vec;
 
   load_platform();

[pcolberg]

Querying the platform from setup() passes, on 476fd47:

diff --git a/test/acl_platform_test.cpp b/test/acl_platform_test.cpp
index 3ecf230..d4ae8f4 100644
--- a/test/acl_platform_test.cpp
+++ b/test/acl_platform_test.cpp
@@ -430,6 +430,7 @@ MT_TEST_GROUP(track_object) {
       acl_test_setenv(m_offline_env, ACLTEST_DEFAULT_BOARD);
     }
     syncThreads();
+    load_platform();
   }
   void teardown() {
     syncThreads();
@@ -510,7 +511,6 @@ TEST_GROUP_STATIC(track_object, cl_command_queue, m_cq1);
 TEST_GROUP_STATIC(track_object, cl_event, m_event);
 
 MT_TEST(track_object, link) {
-  load_platform();
   clTrackLiveObjectsIntelFPGA(0);
   clReportLiveObjectsIntelFPGA(0, 0, 0);
 }
@@ -518,7 +518,6 @@ MT_TEST(track_object, link) {
 MT_TEST(track_object, some_leak) {
   live_info_vec_t live_vec;
 
-  load_platform();
   clTrackLiveObjectsIntelFPGA(m_platform);
 
   clReportLiveObjectsIntelFPGA(m_platform, leak_notify, &live_vec);

[pcolberg]

Tests pass if m_offline_env is switched from static to local storage:

--- a/test/acl_platform_test.cpp
+++ b/test/acl_platform_test.cpp
@@ -487,7 +487,7 @@ MT_TEST_GROUP(track_object) {
   }
 
 protected:
-  static const char *m_offline_env;
+  const char *m_offline_env;
   cl_platform_id m_platform;
   static cl_device_id m_device;
   static cl_context m_context;
@@ -498,7 +498,6 @@ protected:
   static cl_event m_event;
 };
 
-TEST_GROUP_STATIC(track_object, const char *, m_offline_env);
 TEST_GROUP_STATIC(track_object, cl_device_id, m_device);
 TEST_GROUP_STATIC(track_object, cl_context, m_context);
 TEST_GROUP_STATIC(track_object, cl_mem, m_mem0);

[pcolberg]

Tests fail however when using a string literal:

--- a/test/acl_platform_test.cpp
+++ b/test/acl_platform_test.cpp
@@ -426,15 +426,14 @@ MT_TEST_GROUP(track_object) {
       m_kernel = 0;
       m_mem0 = 0;
       m_mem1 = 0;
-      m_offline_env = "CL_CONTEXT_OFFLINE_DEVICE_INTELFPGA";
-      acl_test_setenv(m_offline_env, ACLTEST_DEFAULT_BOARD);
+      acl_test_setenv("CL_CONTEXT_OFFLINE_DEVICE_INTELFPGA", ACLTEST_DEFAULT_BOARD);
     }
     syncThreads();
   }
   void teardown() {
     syncThreads();
     if (threadNum() == 0) {
-      acl_test_unsetenv(m_offline_env);
+      acl_test_unsetenv("CL_CONTEXT_OFFLINE_DEVICE_INTELFPGA");
       ACL_LOCKED(acl_reset());
     }
     acl_test_run_standard_teardown_checks();
@@ -487,7 +486,6 @@ MT_TEST_GROUP(track_object) {
   }
 
 protected:
-  static const char *m_offline_env;
   cl_platform_id m_platform;
   static cl_device_id m_device;
   static cl_context m_context;
@@ -498,7 +496,6 @@ protected:
   static cl_event m_event;
 };
 
-TEST_GROUP_STATIC(track_object, const char *, m_offline_env);
 TEST_GROUP_STATIC(track_object, cl_device_id, m_device);
 TEST_GROUP_STATIC(track_object, cl_context, m_context);
 TEST_GROUP_STATIC(track_object, cl_mem, m_mem0);