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Re: [Jailkit-users] debian x64 probably bash-library related problem

From: Martin
Subject: Re: [Jailkit-users] debian x64 probably bash-library related problem
Date: Sat, 09 Apr 2011 02:16:02 +0200
User-agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv: Gecko/20110303 Lightning/1.0b2 Thunderbird/3.1.9

wow, you've probably found the problem :)

this is outside the(from) jail :
address@hidden:/home/jail/home/ac016# ldd ./i686
    linux-gate.so.1 =>  (0xf76ee000)
    libdl.so.2 => /lib32/libdl.so.2 (0xf76e1000)
    libpthread.so.0 => /lib32/libpthread.so.0 (0xf76c8000)
    libc.so.6 => /lib32/libc.so.6 (0xf7580000)
    /lib/ld-linux.so.2 (0xf76ef000)

this is inside the jail logged as user jailer :
address@hidden:/home/ac016$ ldd ./i686
    not a dynamic executable

is there problem with data (files/binaries like ./i686) i copied to jail are somehow broken or is there problem with jailkit/jail libs ?

On 4/8/11 11:11 PM, Olivier Sessink wrote:
what is the output of `ldd ./i686` in your example?
and `file ./i686` ?


On 04/08/2011 01:11 AM, Martin wrote:
Sure, all i pasted before is from jail, logged as jailed user jailer :).


On 4/7/11 10:35 PM, Olivier Sessink wrote:
On 4/7/11 20:53 , Martin wrote:
Hi Olivier,

it exists as a symlink..

address@hidden:/lib64$ ls -la /lib64/ld-linux-x86-64.so.2
lrwxrwxrwx 1 root root 12 Mar 28 09:24 /lib64/ld-linux-x86-64.so.2 ->
address@hidden:/lib64$ ls -la ld-2.11.2.so
-rwxr-xr-x 1 root root 128744 Jan 23 20:30 ld-2.11.2.so
address@hidden:/lib64$ file ld-2.11.2.so
ld-2.11.2.so: data

I mean: does it exist in the jail?


any other idea ? I am lost :(.

Thanks a lot.


On 4/6/11 11:00 PM, Olivier Sessink wrote:
On 03/28/2011 11:59 AM, Martin wrote:
Hi there,
I am running Linux 2.6.32-5-xen-amd64 #1 SMP Wed Jan 12 05:46:49 UTC
2011 x86_64 GNU/Linux,
my problem is probably related to lib64 or something like that. When I
am logged as user inside jail,
i cannot execute some basics in bash. I tried several ways how to fix
this but I am not successful till now.
Every time i try to execute binary with bash script it will stdout
: No
such file or directory, I checked 777,
chmod is set and even owner and group are my id's. When i cd to
directory in terminal, and run ./binary it will tell me again : No
file or directory.
I've googled that it can be related to x64 and something with bad
"jk_update" of /lib, /lib32 and /lib64 from real system to jail.
I've also tried several versions of jailkit but nothing helped.

su'ed as user jailer to jail:
address@hidden:~$ cd /home/2704
address@hidden:/home/2704$ ./i686
bash: ./i686: No such file or directory
address@hidden:/home/2704$ ls -la | grep i686
-rwxrwxrwx 1 jailer jailer 177498 Mar 28 08:18 i686

Am I doing something wrong ?

address@hidden:/$ ldd /bin/bash
linux-vdso.so.1 => (0x00007ffff65ff000)
libncurses.so.5 => /lib/libncurses.so.5 (0x00007f2e8a124000)
libdl.so.2 => /lib/libdl.so.2 (0x00007f2e89f20000)
libc.so.6 => /lib/libc.so.6 (0x00007f2e89bbe000)
/lib64/ld-linux-x86-64.so.2 (0x00007f2e8a36e000)

my first guess: does /lib64/ld-linux-x86-64.so.2 exist?


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