** Changed in: json-c (Ubuntu)
Status: Triaged => Fix Released
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Title:
Kernel panic when used with upstart
Can we close this bug?
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Title:
Kernel panic when used with upstart after 0.11-4ubuntu2.1 update
Status in json-c
I have one instance that kernel panicked when it updated to
0.11-4ubuntu2.6 using auto updates.
However I cannot confirm that I actually rebooted that instance after
installing 0.11-4ubuntu2.5
So far none of my other instances panicked.
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@pandeyvinod.india: Can you help us try to understand why your instances are
still panicing?
- Do you have a copy of the panic string?
- How did you update to the 0.11-4ubuntu2.6 package?
- Did you reboot the instance after the package was installed?
- Have any of the instances that previously
This package update is still braking few instances hosted on AWS. it is
the same issue what we have seen in version "libjson-c2 0.11-4ubuntu2.1"
and impacted a lot of users.
same issue we are facing in the version libjson-c2/now 0.11-4ubuntu2.6
which caused few aws instances to go in kernel panic
@jfirebaugh: According to https://usn.ubuntu.com/4360-2/
The CVE fix is in the latest version.
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Title:
Kernel panic
@cnewcomer, can you clarify whether or not 0.11-4ubuntu2.5 contains the
(fixed) security update?
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Title:
Kernel panic
So if I'm on 20.04, not running Upstart and not experiencing kernel
panics, why would I want to install this 'update', re-introducing known
security issues? Why is it even pushed to systems running 20.04 without
Upstart?
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Official site released the fix about bionic and xenial:
https://github.com/json-c/json-c/commit/f2b7d0b5cbd0eccf4fb3c1851ec0864952be1057
But above has a problem in lh_table_insert():
if t->count > INT_MAX * LH_LOAD_FACTOR then error return
Thank you.
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I have a Xenial server with upstart.
I've made patches for CVE-2020-12762.
See:
https://gist.github.com/h-yamamo/61161ea78f3bb7761e508ca531c7
Thank you.
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-12762
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FYI, version 0.11-4ubuntu2.5 was recently released. If you are still
experiencing this issue, the following steps will correct it:
1. Remove the postinst file from the affected package (version 0.11-4ubuntu2.1):
sudo rm /var/lib/dpkg/info/libjson-c2\:amd64.postinst
2. Re-run the package
> Just want to give a heads up that manual unpack followed by apt
install -f still crashes
as stated in comment 15, you MUST reboot between dpkg --unpack and apt
install -f.
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@cekkent: Did you reboot between the "dpkg --unpack..." and "sudo apt
install -f" steps?
That reboot is incredibly important since it switches out the init
process from the faulty one in 2.1 to the one in the 2.2 package.
The "apt install -f" is intended to run the pre/post install scripts for
Just want to give a heads up that manual unpack followed by apt install
-f still crashes, however the VM automatically rebooted this time
(instead of remaining dead) and I was able to proceed with usual apt
update afterwards with no further issues.
root@web1:~# curl -LO
> Attempts to install libjson-c2_0.11-4ubuntu2.2_amd64.deb result in the
same lockup which can only be recovered with a hard reboot.
The 2.2 version includes only a revert of the patch, so for any system
affected by this, the currently-running init still contains the faulty
code, and the fixed
Also see https://github.com/json-c/json-c/pull/610/
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Title:
Kernel panic when used with upstart after 0.11-4ubuntu2.1
Sorry, I posted too soon.
Post reboot:
root@HMPBgZ:~# apt-get update
Fetched 51.5 kB in 1s (46.4 kB/s)
Reading package lists... Done
root@HMPBgZ:~# apt-get upgrade
E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct
the problem.
root@HMPBgZ:~# dpkg -s
This is not fixed with the updated package.
Attempts to install libjson-c2_0.11-4ubuntu2.2_amd64.deb result in the
same lockup which can only be recovered with a hard reboot.
root@HMPBgZ:~# dpkg -i libjson-c2_0.11-4ubuntu2.2_amd64.deb
(Reading database ... 154353 files and directories currently
** Changed in: json-c (Ubuntu)
Status: Fix Released => Triaged
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Title:
Kernel panic when used with upstart
This bug was fixed in the package json-c - 0.12.1-1.3ubuntu0.2
---
json-c (0.12.1-1.3ubuntu0.2) bionic-security; urgency=medium
* Revert the security fixes and rebuild the old version (LP: #1878723)
-- Chris Coulson Fri, 15 May 2020
12:33:56 +0100
** Changed in: json-c
This bug was fixed in the package json-c - 0.13.1+dfsg-4ubuntu0.2
---
json-c (0.13.1+dfsg-4ubuntu0.2) eoan-security; urgency=medium
* Revert the security fixes and rebuild the old version (LP: #1878723)
-- Chris Coulson Fri, 15 May 2020
12:33:18 +0100
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This bug was fixed in the package json-c - 0.11-4ubuntu2.2
---
json-c (0.11-4ubuntu2.2) xenial-security; urgency=medium
* Revert the security fixes and rebuild the old version (LP: #1878723)
-- Chris Coulson Fri, 15 May 2020
12:11:57 +0100
** Changed in: json-c (Ubuntu)
** Tags added: id-5ebe6d95d5ae066b83cac917
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Title:
Kernel panic when used with upstart after 0.11-4ubuntu2.1 update
The updated packages just revert the security fixes which resolves this
immediate issue. Keeping the bug open though because we still want to
resolve the underlying issue so that we can republish an update with the
security fixes in it
** Changed in: json-c (Ubuntu)
Status: Fix Released =>
This bug was fixed in the package json-c - 0.13.1+dfsg-4ubuntu0.2
---
json-c (0.13.1+dfsg-4ubuntu0.2) eoan-security; urgency=medium
* Revert the security fixes and rebuild the old version (LP: #1878723)
-- Chris Coulson Fri, 15 May 2020
12:33:18 +0100
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This bug was fixed in the package json-c - 0.13.1+dfsg-7ubuntu0.2
---
json-c (0.13.1+dfsg-7ubuntu0.2) focal-security; urgency=medium
* Revert the security fixes and rebuild the old version (LP: #1878723)
-- Chris Coulson Fri, 15 May 2020
12:31:48 +0100
** Changed in: json-c
Removed the broken version from the archive, and copied back the
previous version.
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Title:
Kernel panic when used
** Changed in: json-c (Ubuntu)
Importance: Undecided => Critical
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Title:
Kernel panic when used with upstart after
today's unattended upgrade killed a lot of our hosts running xenial +
upstart, please mark as critical
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Title:
Kernel
Also ran into this. It looks like this bug got backported
https://github.com/json-c/json-c/issues/599. The upstream fix is this:
https://github.com/besser82/json-c/commit/7a4807fe0cdb1d9e20273c79762cbf54833aaae4
** Bug watch added: github.com/json-c/json-c/issues #599
I also experienced this bug today. What seems to have happened is that
upstart init filled all of the memory on my machine while libjson-c2 was
updating, leading to oom-killer killing everything. The kernel panic
here would happen if oom-killer tries to act on init. After a reboot my
machine
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: json-c (Ubuntu)
Status: New => Confirmed
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