2006-02-16 14:13:48

by linux-os (Dick Johnson)

[permalink] [raw]
Subject: Linux-2.6.15.4 login errors



After installing linux-2.6.15.4, attempts to log in a non-root
account gives these errors.

Password:
Last login: Thu Feb 16 08:53:20 on tty1
Keymap 0: Permission denied
Keymap 1: Permission denied
Keymap 2: Permission denied
LDSKBENT: Operation not permitted
loadkeys: could not deallocate keymap 3

I have searched /etc/profile, /etc/bashrc, all the scripts in
/etc/profile.d. I can't find where loadkeys is even executed!

This is a RH Fedora base. Anybody know how to turn this crap off?

Cheers,
Dick Johnson
Penguin : Linux version 2.6.15.4 on an i686 machine (5590.48 BogoMips).
Warning : 98.36% of all statistics are fiction.
_


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The information transmitted in this message is confidential and may be privileged. Any review, retransmission, dissemination, or other use of this information by persons or entities other than the intended recipient is prohibited. If you are not the intended recipient, please notify Analogic Corporation immediately - by replying to this message or by sending an email to [email protected] - and destroy all copies of this information, including any attachments, without reading or disclosing them.

Thank you.


2006-02-16 14:25:55

by Marc Burkhardt

[permalink] [raw]
Subject: Re: Linux-2.6.15.4 login errors

* linux-os (Dick Johnson) <[email protected]> [2006-02-16 09:13:46 -0500]:

>
>
> After installing linux-2.6.15.4, attempts to log in a non-root
> account gives these errors.
>
> Password:
> Last login: Thu Feb 16 08:53:20 on tty1
> Keymap 0: Permission denied
> Keymap 1: Permission denied
> Keymap 2: Permission denied
> LDSKBENT: Operation not permitted
> loadkeys: could not deallocate keymap 3
>
> I have searched /etc/profile, /etc/bashrc, all the scripts in
> /etc/profile.d. I can't find where loadkeys is even executed!
>
> This is a RH Fedora base. Anybody know how to turn this crap off?
>
> Cheers,
> Dick Johnson
> Penguin : Linux version 2.6.15.4 on an i686 machine (5590.48 BogoMips).
> Warning : 98.36% of all statistics are fiction.
> _
> 

vi .profile .bashrc .bash_profile in the user's ~/ ?

The executed binary should be 'loadkeys'. Try 'loadkeys -s' as a user and see
the output on the console. Should be your quite your error messages...

Marc

2006-02-16 14:28:27

by Dave Jones

[permalink] [raw]
Subject: Re: Linux-2.6.15.4 login errors

On Thu, Feb 16, 2006 at 09:13:46AM -0500, linux-os (Dick Johnson) wrote:
>
>
> After installing linux-2.6.15.4, attempts to log in a non-root
> account gives these errors.
>
> Password:
> Last login: Thu Feb 16 08:53:20 on tty1
> Keymap 0: Permission denied
> Keymap 1: Permission denied
> Keymap 2: Permission denied
> LDSKBENT: Operation not permitted
> loadkeys: could not deallocate keymap 3
>
> I have searched /etc/profile, /etc/bashrc, all the scripts in
> /etc/profile.d. I can't find where loadkeys is even executed!

It's coming from unicode_start

> This is a RH Fedora base. Anybody know how to turn this crap off?

Apply updates.
This was fixed in kbd 1.12-10.fc4.1

Dave

2006-02-16 14:33:26

by linux-os (Dick Johnson)

[permalink] [raw]
Subject: Re: Linux-2.6.15.4 login errors


On Thu, 16 Feb 2006, Dave Jones wrote:

> On Thu, Feb 16, 2006 at 09:13:46AM -0500, linux-os (Dick Johnson) wrote:
> >
> >
> > After installing linux-2.6.15.4, attempts to log in a non-root
> > account gives these errors.
> >
> > Password:
> > Last login: Thu Feb 16 08:53:20 on tty1
> > Keymap 0: Permission denied
> > Keymap 1: Permission denied
> > Keymap 2: Permission denied
> > LDSKBENT: Operation not permitted
> > loadkeys: could not deallocate keymap 3
> >
> > I have searched /etc/profile, /etc/bashrc, all the scripts in
> > /etc/profile.d. I can't find where loadkeys is even executed!
>
> It's coming from unicode_start
>
> > This is a RH Fedora base. Anybody know how to turn this crap off?
>
> Apply updates.
> This was fixed in kbd 1.12-10.fc4.1
>
> Dave

Okay. Thanks. Right now I found loadkeys being executed in
/bin/unicode_start. I just temporarily commented it out.


Cheers,
Dick Johnson
Penguin : Linux version 2.6.15.4 on an i686 machine (5590.48 BogoMips).
Warning : 98.36% of all statistics are fiction.
_


****************************************************************
The information transmitted in this message is confidential and may be privileged. Any review, retransmission, dissemination, or other use of this information by persons or entities other than the intended recipient is prohibited. If you are not the intended recipient, please notify Analogic Corporation immediately - by replying to this message or by sending an email to [email protected] - and destroy all copies of this information, including any attachments, without reading or disclosing them.

Thank you.

2006-02-16 14:35:17

by linux-os (Dick Johnson)

[permalink] [raw]
Subject: Re: Linux-2.6.15.4 login errors


On Thu, 16 Feb 2006, Marc Koschewski wrote:

> * linux-os (Dick Johnson) <[email protected]> [2006-02-16 09:13:46 -0500]:
>
>>
>>
>> After installing linux-2.6.15.4, attempts to log in a non-root
>> account gives these errors.
>>
>> Password:
>> Last login: Thu Feb 16 08:53:20 on tty1
>> Keymap 0: Permission denied
>> Keymap 1: Permission denied
>> Keymap 2: Permission denied
>> LDSKBENT: Operation not permitted
>> loadkeys: could not deallocate keymap 3
>>
>> I have searched /etc/profile, /etc/bashrc, all the scripts in
>> /etc/profile.d. I can't find where loadkeys is even executed!
>>
>> This is a RH Fedora base. Anybody know how to turn this crap off?
>>
>> Cheers,
>> Dick Johnson
>> Penguin : Linux version 2.6.15.4 on an i686 machine (5590.48 BogoMips).
>> Warning : 98.36% of all statistics are fiction.
>> _
>> 
>
> vi .profile .bashrc .bash_profile in the user's ~/ ?
>
> The executed binary should be 'loadkeys'. Try 'loadkeys -s' as a user and see
> the output on the console. Should be your quite your error messages...
>
> Marc


Thanks. I found where it was executed from and hacked a temp
fix to quiet it down.



Cheers,
Dick Johnson
Penguin : Linux version 2.6.15.4 on an i686 machine (5590.48 BogoMips).
Warning : 98.36% of all statistics are fiction.
_


****************************************************************
The information transmitted in this message is confidential and may be privileged. Any review, retransmission, dissemination, or other use of this information by persons or entities other than the intended recipient is prohibited. If you are not the intended recipient, please notify Analogic Corporation immediately - by replying to this message or by sending an email to [email protected] - and destroy all copies of this information, including any attachments, without reading or disclosing them.

Thank you.

2006-02-16 20:30:12

by John M Flinchbaugh

[permalink] [raw]
Subject: can't loadkeys anymore? (was Re: Linux-2.6.15.4 login errors)

On Thu, Feb 16, 2006 at 09:28:25AM -0500, Dave Jones wrote:
> On Thu, Feb 16, 2006 at 09:13:46AM -0500, linux-os (Dick Johnson) wrote:
> > After installing linux-2.6.15.4, attempts to log in a non-root
> > account gives these errors.
> > Password:
> > Last login: Thu Feb 16 08:53:20 on tty1
> > Keymap 0: Permission denied
> > Keymap 1: Permission denied
> > Keymap 2: Permission denied
> > LDSKBENT: Operation not permitted
> > loadkeys: could not deallocate keymap 3
> It's coming from unicode_start
> > This is a RH Fedora base. Anybody know how to turn this crap off?
> Apply updates.
> This was fixed in kbd 1.12-10.fc4.1

This still leaves the question: Why is loadkeys no longer permitted to
set the keymap for a tty the user currently owns? What if the user
really does want to run loadkeys without having to be root (ie. to load
dvorak keymap)?

--
John M Flinchbaugh
[email protected]


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2006-02-16 20:40:33

by linux-os (Dick Johnson)

[permalink] [raw]
Subject: Re: can't loadkeys anymore? (was Re: Linux-2.6.15.4 login errors)


On Thu, 16 Feb 2006, John M Flinchbaugh wrote:

> On Thu, Feb 16, 2006 at 09:28:25AM -0500, Dave Jones wrote:
>> On Thu, Feb 16, 2006 at 09:13:46AM -0500, linux-os (Dick Johnson) wrote:
>> > After installing linux-2.6.15.4, attempts to log in a non-root
>> > account gives these errors.
>> > Password:
>> > Last login: Thu Feb 16 08:53:20 on tty1
>> > Keymap 0: Permission denied
>> > Keymap 1: Permission denied
>> > Keymap 2: Permission denied
>> > LDSKBENT: Operation not permitted
>> > loadkeys: could not deallocate keymap 3
>> It's coming from unicode_start
>> > This is a RH Fedora base. Anybody know how to turn this crap off?
>> Apply updates.
>> This was fixed in kbd 1.12-10.fc4.1
>
> This still leaves the question: Why is loadkeys no longer permitted to
> set the keymap for a tty the user currently owns? What if the user
> really does want to run loadkeys without having to be root (ie. to load
> dvorak keymap)?
>
> --
> John M Flinchbaugh
> [email protected]
>

I just substituted this `chmod 4755` and away you go.

#include <stdio.h>
#include <unistd.h>
int main (int args, char *argv[], char *envp[])
{
(void)setuid(0);
(void)setgid(0);
return execve("/bin/loadkeys.orig", argv, envp);
}

Purists will say "No No!.......", wring their hands and
claim that the world is now flat. However, some of us do
need to do some work on our machines....


Cheers,
Dick Johnson
Penguin : Linux version 2.6.15.4 on an i686 machine (5589.55 BogoMips).
Warning : 98.36% of all statistics are fiction.
_


****************************************************************
The information transmitted in this message is confidential and may be privileged. Any review, retransmission, dissemination, or other use of this information by persons or entities other than the intended recipient is prohibited. If you are not the intended recipient, please notify Analogic Corporation immediately - by replying to this message or by sending an email to [email protected] - and destroy all copies of this information, including any attachments, without reading or disclosing them.

Thank you.

2006-02-17 00:12:25

by Robert Hancock

[permalink] [raw]
Subject: Re: can't loadkeys anymore? (was Re: Linux-2.6.15.4 login errors)

John M Flinchbaugh wrote:
> On Thu, Feb 16, 2006 at 09:28:25AM -0500, Dave Jones wrote:
>> On Thu, Feb 16, 2006 at 09:13:46AM -0500, linux-os (Dick Johnson) wrote:
>> > After installing linux-2.6.15.4, attempts to log in a non-root
>> > account gives these errors.
>> > Password:
>> > Last login: Thu Feb 16 08:53:20 on tty1
>> > Keymap 0: Permission denied
>> > Keymap 1: Permission denied
>> > Keymap 2: Permission denied
>> > LDSKBENT: Operation not permitted
>> > loadkeys: could not deallocate keymap 3
>> It's coming from unicode_start
>> > This is a RH Fedora base. Anybody know how to turn this crap off?
>> Apply updates.
>> This was fixed in kbd 1.12-10.fc4.1
>
> This still leaves the question: Why is loadkeys no longer permitted to
> set the keymap for a tty the user currently owns? What if the user
> really does want to run loadkeys without having to be root (ie. to load
> dvorak keymap)?
>

I believe remapping keys on the console is no longer permitted for
non-root users for security reasons, i.e. to prevent people from
remapping keys so that the next person who logs in will unwittingly run
specific commands with root privileges, etc.

--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from [email protected]
Home Page: http://www.roberthancock.com/

2006-02-17 02:48:26

by Andrew Morton

[permalink] [raw]
Subject: Re: can't loadkeys anymore? (was Re: Linux-2.6.15.4 login errors)

John M Flinchbaugh <[email protected]> wrote:
>
> This still leaves the question: Why is loadkeys no longer permitted to
> set the keymap for a tty the user currently owns? What if the user
> really does want to run loadkeys without having to be root (ie. to load
> dvorak keymap)?

The problem is that you could possibly change keys to do evil things, then
log out, leaving a trap for the next user.