Record Case Detail

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 pwd: /out/package
ppid: 91521
   1: WRITELN head -10 < /dev/urandom | cat > /dev/null
   2: WRITELN exit

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

However, you will still get Wrong Answer because the complete output may be longer and there might be errors in the future lines.

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

mumsh $ /in/main.c:111:13: runtime error: index 1024 out of bounds for type 'char [1024]'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /in/main.c:111:13 in 
=================================================================
==91522==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffd5dc9e1e0 at pc 0x000000517104 bp 0x7ffd5dc9ddb0 sp 0x7ffd5dc9dda8
WRITE of size 1 at 0x7ffd5dc9e1e0 thread T0
    #0 0x517103  (/out/package/mumsh_memory_check+0x517103)
    #1 0x522303  (/out/package/mumsh_memory_check+0x522303)
    #2 0x7effa0bcab96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x41d039  (/out/package/mumsh_memory_check+0x41d039)

Address 0x7ffd5dc9e1e0 is located in stack of thread T0 at offset 1056 in frame
    #0 0x51682f  (/out/package/mumsh_memory_check+0x51682f)

  This frame has 2 object(s):
    [32, 1056) 'command' <== Memory access at offset 1056 overflows this variable
    [1184, 1192) 'fd424'
HINT: this may be a false positive if your program uses some custom stack unwind me

mumsh $ mumsh $ exit

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JOJ Answer