| 2021-05-20 19:21:05 |
Matija Vižintin |
bug |
|
|
added bug |
| 2021-05-25 13:10:29 |
Dan Streetman |
description |
lsb_release -rd
Description: Ubuntu 20.04.2 LTS
Release: 20.04
apt-cache policy systemd
systemd:
Installed: 245.4-4ubuntu3.6
[Impact]
Networkd crashes when a blackhole route (route aggregation is installed as a blackhole route) is advertised via FRR.
[Fix]
networkd should not crash
[Test case]
Bug was reported to systemd (not accepted because systemd version too old) where a test case is described: https://github.com/systemd/systemd/issues/19648 Lower in the comment you can find the full debug log from networkd.
Here you can see the core dump: https://drive.google.com/file/d/1tCKiOSnGkLbx3w9du5_NNepkOQZC_hx7/view?usp=sharing
For convenience I also packed the relevant parts of the prod env in a vagrant box showing the issue: vagrant init matijavizintin/networkd-debug
After some more testing i noticed that immediately after the route is being advertised, networkd detects the change and crashes with "Assertion 'ifindex' failed at src/network/networkd-link.c:757, function link_get(). Aborting."
Steps how it happens:
1. networkd is running
2. frr is started without advertising the aggregated address
3. add aggregated address and reload frr
4. blackhole route is installed and networkd crashes with the error above |
[impact]
systemd-networkd crashes due to assertion failure
[test case]
run systemd-networkd and FRR as described in original description below
[regression potential]
and regression would likely involve incorrectly configured routes
[scope]
this is needed only for f
this is fixed upstream by commit 25b831bac8a5e545e1eda5199392c11c7aed4e42 which is first in v246, so this is fixed in groovy and later
the code involved in this isn't present in b so this doesn't apply there
[original description]
lsb_release -rd
Description: Ubuntu 20.04.2 LTS
Release: 20.04
apt-cache policy systemd
systemd:
Installed: 245.4-4ubuntu3.6
[Impact]
Networkd crashes when a blackhole route (route aggregation is installed as a blackhole route) is advertised via FRR.
[Fix]
networkd should not crash
[Test case]
Bug was reported to systemd (not accepted because systemd version too old) where a test case is described: https://github.com/systemd/systemd/issues/19648 Lower in the comment you can find the full debug log from networkd.
Here you can see the core dump: https://drive.google.com/file/d/1tCKiOSnGkLbx3w9du5_NNepkOQZC_hx7/view?usp=sharing
For convenience I also packed the relevant parts of the prod env in a vagrant box showing the issue: vagrant init matijavizintin/networkd-debug
After some more testing i noticed that immediately after the route is being advertised, networkd detects the change and crashes with "Assertion 'ifindex' failed at src/network/networkd-link.c:757, function link_get(). Aborting."
Steps how it happens:
1. networkd is running
2. frr is started without advertising the aggregated address
3. add aggregated address and reload frr
4. blackhole route is installed and networkd crashes with the error above |
|
| 2021-05-25 13:12:20 |
Dan Streetman |
nominated for series |
|
Ubuntu Focal |
|
| 2021-05-25 13:12:20 |
Dan Streetman |
bug task added |
|
systemd (Ubuntu Focal) |
|
| 2021-05-25 13:12:26 |
Dan Streetman |
nominated for series |
|
Ubuntu Bionic |
|
| 2021-05-25 13:12:26 |
Dan Streetman |
bug task added |
|
systemd (Ubuntu Bionic) |
|
| 2021-05-25 13:12:32 |
Dan Streetman |
systemd (Ubuntu Bionic): status |
New |
Invalid |
|
| 2021-05-25 13:12:35 |
Dan Streetman |
systemd (Ubuntu): status |
New |
Fix Released |
|
| 2021-05-25 13:12:39 |
Dan Streetman |
systemd (Ubuntu Focal): importance |
Undecided |
Medium |
|
| 2021-05-25 13:12:41 |
Dan Streetman |
systemd (Ubuntu Focal): assignee |
|
Dan Streetman (ddstreet) |
|
| 2021-05-25 13:12:45 |
Dan Streetman |
systemd (Ubuntu Focal): status |
New |
In Progress |
|
| 2021-06-01 23:07:43 |
Brian Murray |
systemd (Ubuntu Focal): status |
In Progress |
Fix Committed |
|
| 2021-06-01 23:07:45 |
Brian Murray |
bug |
|
|
added subscriber Ubuntu Stable Release Updates Team |
| 2021-06-01 23:07:48 |
Brian Murray |
bug |
|
|
added subscriber SRU Verification |
| 2021-06-01 23:07:52 |
Brian Murray |
tags |
systemd systemd-networkd |
systemd systemd-networkd verification-needed verification-needed-focal |
|
| 2021-06-04 17:35:56 |
Dan Streetman |
tags |
systemd systemd-networkd verification-needed verification-needed-focal |
systemd systemd-networkd verification-done verification-done-focal |
|
| 2021-06-16 15:35:27 |
Brian Murray |
removed subscriber Ubuntu Stable Release Updates Team |
|
|
|
| 2021-06-16 15:35:19 |
Launchpad Janitor |
systemd (Ubuntu Focal): status |
Fix Committed |
Fix Released |
|
