Comment 4 for bug 1913187

It only affects Bionic:

[rafaeldtinoco@iproute2issue iproute2]$ git describe eb8559eff124221bfbafe934c4dbfe30f20604c0
v4.15.0-103-geb8559ef

[rafaeldtinoco@iproute2issue ~]$ rmadison iproute2
 iproute2 | 3.12.0-2 | trusty | source
 iproute2 | 3.12.0-2ubuntu1.2 | trusty-updates | source
 iproute2 | 4.3.0-1ubuntu3 | xenial | source
 iproute2 | 4.3.0-1ubuntu3.16.04.5 | xenial-updates | source
 iproute2 | 4.15.0-2ubuntu1 | bionic | source
 iproute2 | 4.15.0-2ubuntu1.1 | bionic-security | source
 iproute2 | 4.15.0-2ubuntu1.2 | bionic-updates | source
 iproute2 | 4.18.0-1ubuntu2~ubuntu18.04.1 | bionic-backports | source
 iproute2 | 5.5.0-1ubuntu1 | focal | source
 iproute2 | 5.7.0-1ubuntu1 | groovy | source
 iproute2 | 5.9.0-1ubuntu1 | hirsute | source
 iproute2 | 5.10.0-2ubuntu1 | hirsute-proposed | source