Devuan logs - #209, boring messages

Message sent to [email protected], [email protected]:

Subject: bug#209: ASCII: Default config in ~/.bash_logout crashes X server
Reply-To: Michael Siegel <[email protected]>, [email protected]
Resent-From: Michael Siegel <[email protected]>
Resent-To: [email protected]
Resent-CC: [email protected]
Resent-Date: Sun, 13 May 2018 22:03:01 UTC
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To: [email protected]
From: Michael Siegel <[email protected]>
Message-ID: <[email protected]>
Date: Sun, 13 May 2018 23:42:09 +0200
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Package: bash
Version: 4.4-5

When running X on VT1 and another user session (CLI) on VT2, logging out
on VT2, will either

  * crash the X server running on VT1, leaving you with a functional CLI
or
  * leave you with a blank screen and an apparently frozen-up system
    once you switch back to VT1

Running X with setuid root does not make any difference here. But if the
user on VT2 is root, X on VT1 will not crash when logging out on VT2.

In a discussion on Debian's IRC channel, I've been informed that this
problem is caused by the default configuration in ~/.bash_logout, which
looks like this:

  # ~/.bash_logout: executed by bash(1) when login shell exits.

  # when leaving the console clear the screen to increase privacy

  if [ "$SHLVL" = 1 ]; then
      [ -x /usr/bin/clear_console ] && /usr/bin/clear_console -q
  fi

Commenting out the if statement (or just deleting the file) will cure
the problem.

The culprit here is clear_console. Running /usr/bin/clear_console from
VT2 in the scenario described above will result in the same problems you
get when logging out.

fsmithred has also found that this problem does not occur on D-Bus-free
installations (with the above config in place).


msi

Message sent:

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From: [email protected] (Devuan bug Tracking System)
To: Michael Siegel <[email protected]>
Subject: bug#209: Acknowledgement (ASCII: Default config in ~/.bash_logout crashes X server)
Message-ID: <[email protected]>
In-Reply-To: <[email protected]>
References: <[email protected]>
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X-Devuan-PR-Message: ack 209
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Reply-To: [email protected]

Thank you for the problem report you have sent regarding Devuan.
This is an automatically generated reply, to let you know your message has
been received.  It is being forwarded to the developers mailing list for
their attention; they will reply in due course.

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Please do not reply to the address at the top of this message,
unless you wish to report a problem with the bug-tracking system.

Devuan Bugs Owner
(administrator, Devuan bugs database)

Message sent to [email protected], [email protected]:

Subject: bug#209: Debian changelog for Bash in Stretch
Reply-To: Michael Siegel <[email protected]>, [email protected]
Resent-From: Michael Siegel <[email protected]>
Resent-To: [email protected]
Resent-CC: [email protected]
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To: [email protected]
From: Michael Siegel <[email protected]>
Message-ID: <[email protected]>
Date: Mon, 14 May 2018 17:03:21 +0200
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The Debian changelog for the package of Bash in Stretch includes:

  bash (4.4-3) unstable; urgency=medium

    * Apply upstream patches 006 - 007.
    * clear_console: Securely erase the current console. Closes:
      #845177.
    * Mark locales and time build dependencies with <!nocheck>.
      Closes: #838201.
    * Don't configure with --with-curses. Closes: #794588.

   -- Matthias Klose <[email protected]>  Fri, 20 Jan 2017 11:52:59 +0100


msi

Message sent:

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From: [email protected] (Devuan bug Tracking System)
To: Michael Siegel <[email protected]>
Subject: bug#209: Info received (was Debian changelog for Bash in Stretch)
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Thank you for the additional information you have supplied regarding
this problem report.  It has been forwarded to the developer(s) and
to the developers mailing list to accompany the original report.

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Devuan Bugs Owner
(administrator, Devuan bugs database)

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tags 209 debian
forwarded 209 https://bugs.debian.org/810660
thanks

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tags 209 debian
forwarded 209 https://bugs.debian.org/810660
thanks

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Your message dated Thu, 19 Jan 2023 17:57:43 +0000
with message-id <[email protected]>
and subject line Fixed in Debian #810660
has caused the Devuan bug report #209,
regarding ASCII: Default config in ~/.bash_logout crashes X server
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

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--=20
209: https://bugs.devuan.org/cgi/bugreport.cgi?bug=3D209
Devuan Bug Tracking System
Contact [email protected] with problems

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To: [email protected]
From: Michael Siegel <[email protected]>
Subject: ASCII: Default config in ~/.bash_logout crashes X server
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Date: Sun, 13 May 2018 23:42:09 +0200
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Package: bash
Version: 4.4-5

When running X on VT1 and another user session (CLI) on VT2, logging out
on VT2, will either

  * crash the X server running on VT1, leaving you with a functional CLI
or
  * leave you with a blank screen and an apparently frozen-up system
    once you switch back to VT1

Running X with setuid root does not make any difference here. But if the
user on VT2 is root, X on VT1 will not crash when logging out on VT2.

In a discussion on Debian's IRC channel, I've been informed that this
problem is caused by the default configuration in ~/.bash_logout, which
looks like this:

  # ~/.bash_logout: executed by bash(1) when login shell exits.

  # when leaving the console clear the screen to increase privacy

  if [ "$SHLVL" = 1 ]; then
      [ -x /usr/bin/clear_console ] && /usr/bin/clear_console -q
  fi

Commenting out the if statement (or just deleting the file) will cure
the problem.

The culprit here is clear_console. Running /usr/bin/clear_console from
VT2 in the scenario described above will result in the same problems you
get when logging out.

fsmithred has also found that this problem does not occur on D-Bus-free
installations (with the above config in place).


msi

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Subject: bug#209 closed by Mark Hindley <[email protected]> (Fixed in
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This is an automatic notification regarding your bug report
which was filed against the bash package:

#209: ASCII: Default config in ~/.bash_logout crashes X server

It has been closed by Mark Hindley <[email protected]>.

Their explanation is attached below along with your original report.
If this explanation is unsatisfactory and you have not received a
better one in a separate message then please contact Mark Hindley <mark@hin=
dley.org.uk> by
replying to this email.


--=20
209: https://bugs.devuan.org/cgi/bugreport.cgi?bug=3D209
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Contact [email protected] with problems

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From: Michael Siegel <[email protected]>
Subject: ASCII: Default config in ~/.bash_logout crashes X server
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Date: Sun, 13 May 2018 23:42:09 +0200
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Package: bash
Version: 4.4-5

When running X on VT1 and another user session (CLI) on VT2, logging out
on VT2, will either

  * crash the X server running on VT1, leaving you with a functional CLI
or
  * leave you with a blank screen and an apparently frozen-up system
    once you switch back to VT1

Running X with setuid root does not make any difference here. But if the
user on VT2 is root, X on VT1 will not crash when logging out on VT2.

In a discussion on Debian's IRC channel, I've been informed that this
problem is caused by the default configuration in ~/.bash_logout, which
looks like this:

  # ~/.bash_logout: executed by bash(1) when login shell exits.

  # when leaving the console clear the screen to increase privacy

  if [ "$SHLVL" = 1 ]; then
      [ -x /usr/bin/clear_console ] && /usr/bin/clear_console -q
  fi

Commenting out the if statement (or just deleting the file) will cure
the problem.

The culprit here is clear_console. Running /usr/bin/clear_console from
VT2 in the scenario described above will result in the same problems you
get when logging out.

fsmithred has also found that this problem does not occur on D-Bus-free
installations (with the above config in place).


msi

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