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  1. Line 67: Char 28:
  2. =================================================================
  3. ==22==ERROR: AddressSanitizer: stack-use-after-return on address 0x7fd95bd00028 at pc 0x561220a3030c bp 0x7fffb5ca0db0 sp 0x7fffb5ca0da8
  4. READ of size 8 at 0x7fd95bd00028 thread T0
  5.     #0 0x561220a3030b in __ListNodeUtils__::hasCycle(ListNode*) (solution+0x19030b)
  6.     #1 0x561220a23414 in void _Serializer_::serialize<ListNode>(ListNode* const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>&) (solution+0x183414)
  7.     #2 0x561220a2562a in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> _Serializer_::serialize<ListNode>(ListNode* const&) (solution+0x18562a)
  8.     #3 0x561220a0d85b in main solution.cpp:67:28
  9.     #4 0x7fd95db56d8f  (/lib/x86_64-linux-gnu/libc.so.6+0x29d8f) (BuildId: 490fef8403240c91833978d494d39e537409b92e)
  10.     #5 0x7fd95db56e3f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e3f) (BuildId: 490fef8403240c91833978d494d39e537409b92e)
  11.     #6 0x56122093c974 in _start (solution+0x9c974)
  12. Address 0x7fd95bd00028 is located in stack of thread T0 at offset 40 in frame
  13.     #0 0x561220a0dc8f in Solution::insertGreatestCommonDivisors(ListNode*) solution.cpp:67
  14.   This frame has 1 object(s):
  15.     [32, 48) 'n' (line 44) <== Memory access at offset 40 is inside this variable
  16. HINT: this may be a false positive if your program uses some custom stack unwind mechanism, swapcontext or vfork
  17.       (longjmp and C++ exceptions *are* supported)
  18. SUMMARY: AddressSanitizer: stack-use-after-return (solution+0x19030b) in __ListNodeUtils__::hasCycle(ListNode*)
  19. Shadow bytes around the buggy address:
  20.   0x7fd95bcffd80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  21.   0x7fd95bcffe00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  22.   0x7fd95bcffe80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  23.   0x7fd95bcfff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  24.   0x7fd95bcfff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  25. =>0x7fd95bd00000: f5 f5 f5 f5 f5[f5]f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
  26.   0x7fd95bd00080: f5 f5 f5 f5 f5 f5 f5 f5 00 00 00 00 00 00 00 00
  27.   0x7fd95bd00100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  28.   0x7fd95bd00180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  29.   0x7fd95bd00200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  30.   0x7fd95bd00280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  31. Shadow byte legend (one shadow byte represents 8 application bytes):
  32.   Addressable:           00
  33.   Partially addressable: 01 02 03 04 05 06 07
  34.   Heap left redzone:       fa
  35.   Freed heap region:       fd
  36.   Stack left redzone:      f1
  37.   Stack mid redzone:       f2
  38.   Stack right redzone:     f3
  39.   Stack after return:      f5
  40.   Stack use after scope:   f8
  41.   Global redzone:          f9
  42.   Global init order:       f6
  43.   Poisoned by user:        f7
  44.   Container overflow:      fc
  45.   Array cookie:            ac
  46.   Intra object redzone:    bb
  47.   ASan internal:           fe
  48.   Left alloca redzone:     ca
  49.   Right alloca redzone:    cb
  50. ==22==ABORTING
Runtime error #stdin #stdout #stderr 0.01s 5284KB
comments ()
stdin 
Standard input is empty
stdout 
Standard output is empty
stderr 
./prog.sh: line 1: Line: command not found
./prog.sh: line 2: =================================================================: command not found
./prog.sh: line 3: ==22==ERROR:: command not found
./prog.sh: line 4: READ: command not found
./prog.sh: line 12: Address: command not found
./prog.sh: line 14: syntax error near unexpected token `('
./prog.sh: line 14: `  This frame has 1 object(s):'
https://ideone.com/Gb60BJ
language:
Bash (bash 5.0.3)
created:
311 days ago
visibility:
secret

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