github-starred/firejail

Fork 0

mirror of https://github.com/netblue30/firejail.git synced 2026-05-15 14:16:14 -06:00

[GH-ISSUE #909] "--allow-debuggers" always fails #616

New issue

Closed

opened 2026-05-05 06:17:17 -06:00 by gitea-mirror · 7 comments

gitea-mirror commented

2026-05-05 06:17:17 -06:00

Owner

Originally created by @andyjh92 on GitHub (Nov 12, 2016).
Original GitHub issue: https://github.com/netblue30/firejail/issues/909

Hello!

If I execute firejail --debug --allow-debuggers gdb firefox
,I get the following Error: cannot establish communication with the parent, exiting...
and more > http://pastebin.com/jNFDEEF3

I'm using firejail 0.9.45 and xubuntu 16.04.
firejail --version > http://pastebin.com/b72Vzm6U

Thanks,
Andi

Originally created by @andyjh92 on GitHub (Nov 12, 2016). Original GitHub issue: https://github.com/netblue30/firejail/issues/909 Hello! If I execute firejail --debug --allow-debuggers gdb firefox ,I get the following Error: cannot establish communication with the parent, exiting... and more > http://pastebin.com/jNFDEEF3 I'm using firejail 0.9.45 and xubuntu 16.04. firejail --version > http://pastebin.com/b72Vzm6U Thanks, Andi

gitea-mirror

2026-05-05 06:17:17 -06:00

closed this issue
added the
bug
label

gitea-mirror commented

2026-05-05 06:17:23 -06:00

Author

Owner

@netblue30 commented on GitHub (Nov 13, 2016):

This is what I get on my system:

$ firejail --allow-debuggers gdb /usr/lib/firefox-esr/firefox-esr
Reading profile /etc/firejail/default.profile
Reading profile /etc/firejail/disable-common.inc
Reading profile /etc/firejail/disable-programs.inc
Reading profile /etc/firejail/disable-passwdmgr.inc

** Note: you can use --noprofile to disable default.profile **

Parent pid 5811, child pid 5812
Child process initialized
GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/lib/firefox-esr/firefox-esr...(no debugging symbols found)...done.
(gdb)

Does it work if you use --noprofile?

$ firejail --noprofile --allow debuggers gdb firefox

@netblue30 commented on GitHub (Nov 13, 2016): This is what I get on my system: ``` $ firejail --allow-debuggers gdb /usr/lib/firefox-esr/firefox-esr Reading profile /etc/firejail/default.profile Reading profile /etc/firejail/disable-common.inc Reading profile /etc/firejail/disable-programs.inc Reading profile /etc/firejail/disable-passwdmgr.inc ** Note: you can use --noprofile to disable default.profile ** Parent pid 5811, child pid 5812 Child process initialized GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1 Copyright (C) 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/lib/firefox-esr/firefox-esr...(no debugging symbols found)...done. (gdb) ``` Does it work if you use --noprofile? ``` $ firejail --noprofile --allow debuggers gdb firefox ```

gitea-mirror commented

2026-05-05 06:17:26 -06:00

Author

Owner

@andyjh92 commented on GitHub (Nov 17, 2016):

hello

i still have the same problem with --noprifile. i also reinstalled the os. still the same. but i have an error in my message above. i'm using ubuntu 16.10 not 16.04. sry.

@andyjh92 commented on GitHub (Nov 17, 2016): hello i still have the same problem with --noprifile. i also reinstalled the os. still the same. but i have an error in my message above. i'm using ubuntu 16.10 not 16.04. sry.

gitea-mirror commented

2026-05-05 06:17:28 -06:00

Author

Owner

@andyjh92 commented on GitHub (Nov 18, 2016):

i tried now ubuntu 16.04. it also fails with version 0.9.44 and version 0.9.45

@andyjh92 commented on GitHub (Nov 18, 2016): i tried now ubuntu 16.04. it also fails with version 0.9.44 and version 0.9.45

gitea-mirror commented

2026-05-05 06:17:31 -06:00

Author

Owner

@netblue30 commented on GitHub (Nov 19, 2016):

I'll have to try it out, here on Debian Jessie seems to be fine.

@netblue30 commented on GitHub (Nov 19, 2016): I'll have to try it out, here on Debian Jessie seems to be fine.

gitea-mirror commented

2026-05-05 06:17:35 -06:00

Author

Owner

@andyjh92 commented on GitHub (Jan 7, 2017):

now it works on ubuntu-16-04 with 0.9.45. i did a reinstall of the os. maybe installing firejail with apt-get and then overwriting it with ./configure; make ; make install caused problems.

@andyjh92 commented on GitHub (Jan 7, 2017): now it works on ubuntu-16-04 with 0.9.45. i did a reinstall of the os. maybe installing firejail with apt-get and then overwriting it with ./configure; make ; make install caused problems.

gitea-mirror commented

2026-05-05 06:17:38 -06:00

Author

Owner

@netblue30 commented on GitHub (Jan 9, 2017):

There was a problem with ptrace code in Linux kernels prior to 4.8, so I had to disable --allow-debuggers if I detect an older kernel - this happened in the last two or three days.

@netblue30 commented on GitHub (Jan 9, 2017): There was a problem with ptrace code in Linux kernels prior to 4.8, so I had to disable --allow-debuggers if I detect an older kernel - this happened in the last two or three days.

gitea-mirror commented

2026-05-05 06:17:40 -06:00

Author

Owner

@netblue30 commented on GitHub (Apr 14, 2017):

Closing... will reopen if necessary.

@netblue30 commented on GitHub (Apr 14, 2017): Closing... will reopen if necessary.

gitea-mirror referenced this issue

2026-05-05 10:05:59 -06:00

[PR #616] [MERGED] disable-common: Blacklist ~/.config/keybase #3685

No milestone

No project

No assignees

1 participant

Notifications

Due date

The due date is invalid or out of range. Please use the format "yyyy-mm-dd".

No due date set.

Dependencies

No dependencies set.

Reference: github-starred/firejail#616

No description provided.

Rows
Columns