[Pkg-utopia-maintainers] Bug#829374: nm-openvpn error consumes all free space in /var/log

[Nicholas D Steeves]

Package: network-manager-openvpn
Version: 0.9.10.0-1
Severity: grave

Hi,

I've been putting of reporting that nm-openvpn in Jessie fails to tear
down the tap0 interface when disconnecting from a VPN...well, it's
just as well that I put it off, because it turns out that it is a more
severe issue than I had imagined.  It produces 390G of the following
line in /var/log/daemon.log ! :

Jun 30 16:27:22 hal9000 nm-openvpn[16077]: read from TUN/TAP : File
descriptor in bad state (code=77)
Jun 30 16:27:22 hal9000 nm-openvpn[16077]: read from TUN/TAP : File
descriptor in bad state (code=77)
Jun 30 16:27:22 hal9000 nm-openvpn[16077]: read from TUN/TAP : File
descriptor in bad state (code=77)
Jun 30 16:27:22 hal9000 nm-openvpn[16077]: read from TUN/TAP : File
descriptor in bad state (code=77)
Jun 30 16:27:22 hal9000 nm-openvpn[16077]: read from TUN/TAP : File
descriptor in bad state (code=77)
...

Given that less that a second seems to have elapsed between log
entries, it look like there are three problems.  1) nm-openvpn fails
to tear down tap0 when disconnecting from VPN  2) there is a race
condition somewhere, leading to effect  3) all available disk space is
consumed.

I have not read more than five minutes of paging through
/var/log/daemon.log, but I expect that the time stamp increments at
some point.  I also expect that this bug is fixed in a newer version
of network-manager-openvpn and that the fix can be cherry-picked and
backported to 0.9.10.0.

Sincerely,
Nicholas