Subject: Re: openat(2) and friends
To: Rhialto <rhialto@azenomei.knuffel.net>
From: Hubert Feyrer <hubert@feyrer.de>
List: tech-kern
Date: 03/08/2005 14:30:10
On Tue, 8 Mar 2005, Rhialto wrote:
>> I'd like som feedback on this approach before continuing with
>> fstatat(2) and opendir(3).
>
> Would this help to escape from a chroot()?

I guess you'd need a file descriptor from outside the chroot first.

Dunno if something like the following scenario would work:
  * Have two (say) ssh daemons run, one in chroot, one outside
  * get descriptor #1 to the non-chrooted sshd
  * log into the chrooted sshd
  * openat(/etc/passwd, #1)


  - Hubert

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