Record Case Detail

This function is in beta test. Please help improve it in the issues here.

 pwd: /out/package
ppid: 5345
   1: WRITELN > abc | | grep 123
   2: WRITELN exit
exit: 1

Your answer may be identical to the JOJ answer in the first several lines.

However, the main problem you meet now is Runtime Error. And the exit code of your program is 1, which should be 0.

Please double check your code to solve this problem and try again.

mumsh $ =================================================================
==5346==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffdeee5475f at pc 0x000000518ac0 bp 0x7ffdeec53b10 sp 0x7ffdeec53b08
READ of size 1 at 0x7ffdeee5475f thread T0
    #0 0x518abf  (/out/package/mumsh_memory_check+0x518abf)
    #1 0x5164dc  (/out/package/mumsh_memory_check+0x5164dc)
    #2 0x7f359fa91b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x41d4b9  (/out/package/mumsh_memory_check+0x41d4b9)

Address 0x7ffdeee5475f is located in stack of thread T0 at offset 2097695 in frame
    #0 0x51588f  (/out/package/mumsh_memory_check+0x51588f)

  This frame has 3 object(s):
    [32, 1048608) 'commands'
    [1048864, 2097440) 'commands_f'
    [2097696, 2098720) 'argv' <== Memory access at offset 2097695 underflows this variable
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-buf

mumsh $ error: missing program
mumsh $ exit

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JOJ Answer