Jan Engelhardt wrote:
quoted text
> On Sep 26 2007 01:11, David Newall wrote:
>   
>> Jan Engelhardt wrote:
>>     
>>> On Sep 26 2007 00:40, David Newall wrote:
>>>   
>>>       
>>>> Miloslav Semler pointed out that a root process can chdir("..") out of its
>>>> chroot.
>>>>         
>>> So what? Just do this: chdir into the root after chroot.
>>>       
>> I don't think so.  His exploit just got me all the way out of a chroot within a
>> chroot within a chroot, inclusive of lots of chdirs.
>>     
>
> Close all fds that point to directories outside the root ;-)
>   

Nope, still gets out.
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