Package: dpkg
Version: 1.18.25

AFAICS a line

        start-stop-daemon -x /usr/sbin/sshd -T

returns 0 (success), if it finds the sshd running in a container,
even if the local service has been stopped. Sample session (running
2 LXCs with their own private sshd each):

root@srvl011a:~# ps -ef | grep sshd
root        1748    1475  0 May15 ?        00:00:00 /usr/sbin/sshd -D
root      414999  414500  0 May16 ?        00:00:05 /usr/sbin/sshd -D
root     2683140       1  0 11:35 ?        00:00:00 sshd: root@notty
root     2685330       1  0 11:42 ?        00:00:00 /usr/sbin/sshd -D
root     2685332 2683159  0 11:42 pts/1    00:00:00 grep sshd
root@srvl011a:~# start-stop-daemon -x /usr/sbin/sshd -T
root@srvl011a:~# echo $?
0
root@srvl011a:~# service sshd stop
root@srvl011a:~# ps -ef | grep sshd
root        1748    1475  0 May15 ?        00:00:00 /usr/sbin/sshd -D
root      414999  414500  0 May16 ?        00:00:05 /usr/sbin/sshd -D
root     2683140       1  0 11:35 ?        00:00:00 sshd: root@notty
root     2685704 2683159  0 11:42 pts/1    00:00:00 grep sshd
root@srvl011a:~# start-stop-daemon -x /usr/sbin/sshd -T
root@srvl011a:~# echo $?
0


If I try this on a host without containers, then there is just a single
instance of sshd and start-stop-daemon works as expected:

root@dpcl082:~# ps -ef | grep sshd
root     13153     1  0 11:48 ?        00:00:00 /usr/sbin/sshd -D
root     13159 10771  0 11:48 pts/12   00:00:00 grep sshd
root@dpcl082:~# start-stop-daemon -x /usr/sbin/sshd -T
root@dpcl082:~# echo $?
0
root@dpcl082:~# service sshd stop
root@dpcl082:~# ps -ef | grep sshd
root     13358 10771  0 11:48 pts/12   00:00:00 grep sshd
root@dpcl082:~# start-stop-daemon -x /usr/sbin/sshd -T
root@dpcl082:~# echo $?
3


This might be serious.


Regards
Harri

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