Remove dhcp_extra_opt value after first newline character
Passing newline to the dnsmasq may cause security issues, especially
that in case of Neutron that dhcp options' values are controlled by
cloud users.
This patch removes everything what is after first newline character
in the dhcp_extra_opt's values before passing them to dnsmasq.
Reviewed: https:/ /review. opendev. org/c/openstack /neutron/ +/806746 /opendev. org/openstack/ neutron/ commit/ df891f0593d234e 01f27d7c0376d97 02e178ecfb
Committed: https:/
Submitter: "Zuul (22348)"
Branch: master
commit df891f0593d234e 01f27d7c0376d97 02e178ecfb
Author: Slawek Kaplonski <email address hidden>
Date: Tue Aug 31 15:43:11 2021 +0200
Remove dhcp_extra_opt value after first newline character
Passing newline to the dnsmasq may cause security issues, especially
that in case of Neutron that dhcp options' values are controlled by
cloud users.
This patch removes everything what is after first newline character
in the dhcp_extra_opt's values before passing them to dnsmasq.
Closes-Bug: #1939733 6f25620ac4116d6 18980a7272e
Change-Id: Ifeaf258f0b5ea8