Record Case Detail

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

 pwd: /out/package
ppid: 50273
   1: WRITELN ls
   2: WRITELN ls
   3: WRITELN ls
   4: 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 $ =================================================================
==50274==ERROR: AddressSanitizer: heap-use-after-free on address 0x619000000080 at pc 0x0000004b2477 bp 0x7ffe91e40ab0 sp 0x7ffe91e40260
READ of size 1 at 0x619000000080 thread T0
    #0 0x4b2476  (/out/package/mumsh_memory_check+0x4b2476)
    #1 0x51574c  (/out/package/mumsh_memory_check+0x51574c)
    #2 0x515935  (/out/package/mumsh_memory_check+0x515935)
    #3 0x7f3f7b03eb96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #4 0x41cb89  (/out/package/mumsh_memory_check+0x41cb89)

0x619000000080 is located 0 bytes inside of 1024-byte region [0x619000000080,0x619000000480)
freed by thread T0 here:
    #0 0x4dc870  (/out/package/mumsh_memory_check+0x4dc870)
    #1 0x5153fe  (/out/package/mumsh_memory_check+0x5153fe)
    #2 0x51592d  (/out/package/mumsh_memory_check+0x51592d)
    #3 0x7f3f7b03eb96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)

previously allocated by thread T0 here:
    #0 0x4dca40  (/out/package/mumsh_memory_check+0x4dca40)

mumsh $ driver
mumsh
mumsh_memory_check
mumsh $ driver
mumsh
mumsh_memory_check
mumsh $ driver
mumsh
mumsh_memory_check
mumsh $ exit

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JOJ Answer