Example

Sanitize.Address

command_line: /opt/hostedtoolcache/cmake/4.2.1/x64/cmake-4.2.1-linux-x86_64/bin/cmake "-E" "env" "ASAN_OPTIONS=log_path='/home/runner/work/nightly-builds/nightly-builds/build/Testing/Temporary/MemoryChecker.7.log'" "/home/runner/work/nightly-builds/nightly-builds/build/Sanitizers/sanitizers" "asan"

working_directory: ""

heap-use-after-free: 0

Processors: 1

DA Checker: AddressSanitizer

Exit Code: Failed

Exit Value: 1

Subproject: Sanitizers

Environment: #CTEST_RESOURCE_GROUP_COUNT=

Completion Status: Completed

stdout:

=================================================================
==2325==ERROR: AddressSanitizer: heap-use-after-free on address 0x507000000025 at pc 0x558fe2e623e8 bp 0x7ffd0a84fa70 sp 0x7ffd0a84fa68
READ of size 1 at 0x507000000025 thread T0
    #0 0x558fe2e623e7 in asan /home/runner/work/nightly-builds/nightly-builds/Sanitizers/asan.c:7:10
    #1 0x558fe2e61f9d in main /home/runner/work/nightly-builds/nightly-builds/build/Sanitizers/main.c:201:14
    #2 0x7f6fc482a1c9  (/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9) (BuildId: 274eec488d230825a136fa9c4d85370fed7a0a5e)
    #3 0x7f6fc482a28a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28a) (BuildId: 274eec488d230825a136fa9c4d85370fed7a0a5e)
    #4 0x558fe2d88364 in _start (/home/runner/work/nightly-builds/nightly-builds/build/Sanitizers/sanitizers+0x2c364) (BuildId: c8b5694f6e3736e231e584c4931c05fab106e2a7)

0x507000000025 is located 5 bytes inside of 80-byte region [0x507000000020,0x507000000070)
freed by thread T0 here:
    #0 0x558fe2e22f1a in free (/home/runner/work/nightly-builds/nightly-builds/build/Sanitizers/sanitizers+0xc6f1a) (BuildId: c8b5694f6e3736e231e584c4931c05fab106e2a7)
    #1 0x558fe2e623aa in asan /home/runner/work/nightly-builds/nightly-builds/Sanitizers/asan.c:6:3
    #2 0x558fe2e61f9d in main /home/runner/work/nightly-builds/nightly-builds/build/Sanitizers/main.c:201:14
    #3 0x7f6fc482a1c9  (/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9) (BuildId: 274eec488d230825a136fa9c4d85370fed7a0a5e)
    #4 0x7f6fc482a28a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28a) (BuildId: 274eec488d230825a136fa9c4d85370fed7a0a5e)
    #5 0x558fe2d88364 in _start (/home/runner/work/nightly-builds/nightly-builds/build/Sanitizers/sanitizers+0x2c364) (BuildId: c8b5694f6e3736e231e584c4931c05fab106e2a7)

previously allocated by thread T0 here:
    #0 0x558fe2e2339d in calloc (/home/runner/work/nightly-builds/nightly-builds/build/Sanitizers/sanitizers+0xc739d) (BuildId: c8b5694f6e3736e231e584c4931c05fab106e2a7)
    #1 0x558fe2e6239d in asan /home/runner/work/nightly-builds/nightly-builds/Sanitizers/asan.c:5:13
    #2 0x558fe2e61f9d in main /home/runner/work/nightly-builds/nightly-builds/build/Sanitizers/main.c:201:14
    #3 0x7f6fc482a1c9  (/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9) (BuildId: 274eec488d230825a136fa9c4d85370fed7a0a5e)
    #4 0x7f6fc482a28a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28a) (BuildId: 274eec488d230825a136fa9c4d85370fed7a0a5e)
    #5 0x558fe2d88364 in _start (/home/runner/work/nightly-builds/nightly-builds/build/Sanitizers/sanitizers+0x2c364) (BuildId: c8b5694f6e3736e231e584c4931c05fab106e2a7)

SUMMARY: AddressSanitizer: heap-use-after-free /home/runner/work/nightly-builds/nightly-builds/Sanitizers/asan.c:7:10 in asan
Shadow bytes around the buggy address:
  0x506ffffffd80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x506ffffffe00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x506ffffffe80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x506fffffff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x506fffffff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x507000000000: fa fa fa fa[fd]fd fd fd fd fd fd fd fd fd fa fa
  0x507000000080: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x507000000100: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x507000000180: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x507000000200: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x507000000280: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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
==2325==ABORTING
Status: failed
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