Question for babyjail8

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Xin bor

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Jul 22, 2021, 12:24:36 PM7/22/21
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Dear professor:

  I had been stuck in the puzzle babyjail8 for a week. Only use "openat" syscall seems didn't work for this puzzle. And I can't get a dir-fd descriptor that points to out of the jail. It's a little hard for me to break through it. So I want to ask for a hint by sending this mail, and I will appreciate for your help.

Best wish.

Student Xin.
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