[pkg-ntp-maintainers] Bug#671617: segfaults with cryptostats enabled

[Peter Palfrader]

Package: ntp
Version: 1:4.2.6.p5+dfsg-1
Severity: normal

On our armhf hosts, ntp segfaults at start with the following config:

| driftfile /var/lib/ntp/ntp.drift
| statsdir /var/log/ntpstats/
| 
| statistics loopstats peerstats clockstats cryptostats
| filegen loopstats file loopstats type day enable
| filegen peerstats file peerstats type day enable
| filegen clockstats file clockstats type day enable
| filegen cryptostats file cryptostats type day enable
| 
| crypto randfile /dev/urandom
| keysdir /etc/ntp.keys.d
| 
| # autokey doesn't work behind nat
| 
| # merikanto's and orff's ipv4 IP, hard coded for the benefit of hosts
| # that do not have RTC's (since they won't be able to do DNS until
| # they have a reasonable clock).
| server 86.59.118.147        iburst
| server 194.177.211.209      iburst
| 
| server merikanto.debian.org iburst
| server orff.debian.org      iburst
| server ravel.debian.org     iburst
| server busoni.debian.org    iburst
| 
| restrict -4 default kod notrap nomodify nopeer noquery
| restrict -6 default kod notrap nomodify nopeer noquery
| 
| restrict 127.0.0.1
| restrict ::1


} weasel at harris:~$ sudo strace -f start-stop-daemon --start --oknodo --pidfile /var/run/ntpd.pid --startas /usr/sbin/ntpd -- -p /var/run/ntpd.pid -g -u 104:106
} ...
} bind(22, {sa_family=AF_NETLINK, pid=0, groups=00000771}, 12) = 0
} fcntl64(22, F_SETFL, O_RDONLY|O_NONBLOCK) = 0
} gettimeofday({1336221938, 666439}, NULL) = 0
} send(3, "<30>May  5 12:45:38 ntpd[6451]: "..., 92, MSG_NOSIGNAL) = 92
} clock_gettime(CLOCK_REALTIME, {1336221938, 668928229}) = 0
} --- SIGSEGV (Segmentation fault) @ 0 (0) ---


Removing cryptostats from statistics, and removing the filegen cryptostats
line makes ntpd work again.

Cheers,