Bug#784112: /usr/sbin/saslauthd: saslauthd segfaults
Thomas Kupka
itchy.de at gmail.com
Sun May 3 08:24:27 UTC 2015
Package: sasl2-bin
Version: 2.1.26.dfsg1-13
Severity: important
File: /usr/sbin/saslauthd
Dear Maintainer,
since upgrading to Jessie, all saslauthd processes segfault on a multiple daily basis:
May 3 06:26:12 mail kernel: [22739.740552] saslauthd[763]: segfault at 0 ip 00007faffd5d8c8a sp 00007ffda85ebe48 error 4 in libc-2.19.so[7faffd557000+19f000]
May 3 06:26:12 mail kernel: [22739.928344] saslauthd[739]: segfault at 0 ip 00007faffd5d8c8a sp 00007ffda85ebe48 error 4 in libc-2.19.so[7faffd557000+19f000]
May 3 06:26:12 mail kernel: [22740.127304] saslauthd[760]: segfault at 0 ip 00007faffd5d8c8a sp 00007ffda85ebe48 error 4 in libc-2.19.so[7faffd557000+19f000]
May 3 10:04:24 mail kernel: [35831.420577] saslauthd[761]: segfault at 0 ip 00007faffd5d8c8a sp 00007ffda85ebe48 error 4 in libc-2.19.so[7faffd557000+19f000]
May 3 10:04:24 mail kernel: [35831.607218] saslauthd[762]: segfault at 0 ip 00007faffd5d8c8a sp 00007ffda85ebe48 error 4 in libc-2.19.so[7faffd557000+19f000]
May 3 10:04:24 mail postfix/smtpd[17269]: warning: SASL authentication failure: cannot connect to saslauthd server: Connection refused
I have not changed any configuration related to postfix, cyrus or saslauthd during the upgrade. Prior to the upgrade, no issues have been experienced with saslauthd ever.
- Thomas
-- System Information:
Debian Release: 8.0
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.16.0-4-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages sasl2-bin depends on:
ii db-util 5.3.0
ii debconf [debconf-2.0] 1.5.56
ii libc6 2.19-18
ii libcomerr2 1.42.12-1.1
ii libdb5.3 5.3.28-9
ii libgssapi-krb5-2 1.12.1+dfsg-19
ii libk5crypto3 1.12.1+dfsg-19
ii libkrb5-3 1.12.1+dfsg-19
ii libldap-2.4-2 2.4.40+dfsg-1
ii libpam0g 1.1.8-3.1
ii libsasl2-2 2.1.26.dfsg1-13
ii libssl1.0.0 1.0.1k-3
sasl2-bin recommends no packages.
sasl2-bin suggests no packages.
-- Configuration Files:
/etc/default/saslauthd changed:
START=yes
DESC="SASL Authentication Daemon"
NAME="saslauthd"
MECHANISMS="shadow"
MECH_OPTIONS=""
THREADS=5
OPTIONS="-c -m /var/spool/postfix/var/run/saslauthd"
/etc/init.d/saslauthd changed:
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DAEMON=/usr/sbin/saslauthd
DEFAULT_FILES=`find /etc/default -regex '/etc/default/saslauthd[_a-zA-Z0-9\-]*$' -print | sort`
[ -x "$DAEMON" ] || exit 0
. /lib/init/vars.sh
[ -e /var/run/saslauthd ] || ln -s /var/spool/postfix/var/run/saslauthd /var/run/saslauthd
. /lib/lsb/init-functions
do_startall()
{
for instance in $DEFAULT_FILES
do
start_instance $instance
done
}
do_stopall()
{
for instance in $DEFAULT_FILES
do
stop_instance $instance
done
}
do_reloadall()
{
for instance in $DEFAULT_FILES
do
reload_instance $instance
done
}
do_checkall()
{
for instance in $DEFAULT_FILES
do
check_instance $instance
done
}
start_instance()
{
# Load defaults file for this instance.
. $1
# If the daemon is not enabled, give the user a warning and stop.
if [ "$START" != "yes" ]; then
log_warning_msg "To enable $NAME, edit $1 and set START=yes"
return 0
fi
# If the short name of this instance is undefined, warn the user
# but choose a default name.
if [ -z "$NAME" ]; then
log_warning_msg "Short name (NAME) undefined in $1, using default"
NAME=default
fi
log_daemon_msg "Starting $DESC" "$NAME"
# Set OPTIONS to a default value, as noted in the defaults file
if [ -z "$OPTIONS" ]; then
log_warning_msg "Options (OPTIONS) undefined in $1, using default (-c -m /var/run/saslauthd)"
OPTIONS="-c -m /var/run/saslauthd"
fi
# Determine run directory and pid file location by looking
# for an -m option.
RUN_DIR=`echo "$OPTIONS" | xargs -n 1 echo | sed -n '/^-m$/{n;p}'`
if [ -z "$RUN_DIR" ]; then
# No run directory defined in defaults file, fail.
log_failure_msg "No run directory defined for $NAME (did you forget to set OPTIONS=\"-c -m /var/run/saslauthd\" in the defaults file?), not starting"
return 1
fi
PIDFILE=$RUN_DIR/saslauthd.pid
# If no mechanisms are defined, fail.
if [ -z "$MECHANISMS" ]; then
log_failure_msg "No mechanisms defined in $1, not starting $NAME"
return 1
fi
# If there are mechanism options defined, prepare them for use with
# the -O flag.
if [ -n "$MECH_OPTIONS" ]; then
MECH_OPTIONS="-O $MECH_OPTIONS"
fi
# If there is a threads option defined, prepare it for use with
# the -n flag.
if [ -n "$THREADS" ]; then
THREAD_OPTIONS="-n $THREADS"
fi
# Construct argument string.
DAEMON_ARGS="-a $MECHANISMS $MECH_OPTIONS $OPTIONS $THREAD_OPTIONS"
# If there is a statoverride for the run directory, then pull
# permission and ownership information from it and create the directory.
# Otherwise, we create the directory with default permissions and
# ownership (root:sasl, 710).
if dpkg-statoverride --list $RUN_DIR > /dev/null; then
createdir `dpkg-statoverride --list $RUN_DIR`
else
createdir root sasl 710 $RUN_DIR
fi
# Start the daemon, phase 1: see if it is already running.
start-stop-daemon --start --quiet --pidfile $PIDFILE --name $NAME \
--exec $DAEMON --test > /dev/null
if [ "$?" != "0" ]; then
log_progress_msg "(already running)"
log_end_msg 0
return 0
fi
# Start the daemon, phase 2: it was not running, so actually start it now.
start-stop-daemon --start --quiet --pidfile $PIDFILE --name $NAME \
--exec $DAEMON -- $DAEMON_ARGS
if [ "$?" -ne "0" ]; then
log_end_msg 1
return 1
fi
# Started successfully.
log_end_msg 0
return 0
}
stop_instance()
{
# Load defaults file for this instance.
. $1
# If the short name of this instance is undefined, warn the user
# but choose a default name.
if [ -z "$NAME" ]; then
log_warning_msg "Short name (NAME) undefined in $1, using default"
NAME=default
fi
# Set OPTIONS to a default value, as noted in the defaults file
if [ -z "$OPTIONS" ]; then
log_warning_msg "Options (OPTIONS) undefined in $1, using default (-c -m /var/run/saslauthd)"
OPTIONS="-c -m /var/run/saslauthd"
fi
# Determine run directory and pid file location by looking
# for an -m option.
RUN_DIR=`echo "$OPTIONS" | xargs -n 1 echo | sed -n '/^-m$/{n;p}'`
if [ -z "$RUN_DIR" ]; then
# No run directory defined in defaults file, fail.
log_failure_msg "No run directory defined for $NAME (did you forget to set OPTIONS=\"-c -m /var/run/saslauthd\" in the defaults file?), not starting"
return 2
fi
PIDFILE=$RUN_DIR/saslauthd.pid
log_daemon_msg "Stopping $DESC" "$NAME"
start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 \
--pidfile $PIDFILE --exec $DAEMON
if [ "$?" -eq "2" ]; then
# Failed to stop.
log_end_msg 1
return 2
fi
if [ "$?" -eq "1" ]; then
# Already stopped.
log_progress_msg "(not running)"
fi
# Many daemons don't delete their pidfiles when they exit.
rm -f $PIDFILE
# Stopped successfully.
log_end_msg 0
return $RETVAL
}
reload_instance()
{
# Load defaults file for this instance.
. $1
# If the short name of this instance is undefined, warn the user
# but choose a default name.
if [ -z "$NAME" ]; then
log_warning_msg "Short name (NAME) undefined in $1, using default"
NAME=default
fi
# Set OPTIONS to a default value, as noted in the defaults file
if [ -z "$OPTIONS" ]; then
log_warning_msg "Options (OPTIONS) undefined in $1, using default (-c -m /var/run/saslauthd)"
OPTIONS="-c -m /var/run/saslauthd"
fi
# Determine run directory and pid file location by looking
# for an -m option.
RUN_DIR=`echo "$OPTIONS" | xargs -n 1 echo | sed -n '/^-m$/{n;p}'`
if [ -z "$RUN_DIR" ]; then
# No run directory defined in defaults file, fail.
log_failure_msg "No run directory defined for $NAME (did you forget to set OPTIONS=\"-c -m /var/run/saslauthd\" in the defaults file?), not starting"
return 2
fi
PIDFILE=$RUN_DIR/saslauthd.pid
log_daemon_msg "Reloading $DESC" "$NAME"
# Reload the daemon. First, see if it is already running.
start-stop-daemon --start --quiet --pidfile $PIDFILE \
--exec $DAEMON --test > /dev/null
if [ "$?" -eq "0" ]; then
# Not running, signal this and stop.
log_progress_msg "(not running)"
log_end_msg 0
return 0
fi
start-stop-daemon --stop --signal 1 \
--pidfile $PIDFILE --exec $DAEMON
log_end_msg $?
}
check_instance()
{
# Load defaults file for this instance.
. $1
# If the short name of this instance is undefined, warn the user
# but choose a default name.
if [ -z "$NAME" ]; then
log_warning_msg "Short name (NAME) undefined in $1, using default"
NAME=default
fi
# Determine run directory and pid file location by looking
# for an -m option.
RUN_DIR=`echo "$OPTIONS" | xargs -n 1 echo | sed -n '/^-m$/{n;p}'`
if [ -z "$RUN_DIR" ]; then
# No run directory defined in defaults file, fail.
log_failure_msg "No run directory defined for $NAME, cannot check"
return 2
fi
PIDFILE=$RUN_DIR/saslauthd.pid
log_daemon_msg "Checking $DESC" "$NAME"
# Reload the daemon. First, see if it is already running.
start-stop-daemon --start --quiet --pidfile $PIDFILE \
--exec $DAEMON --test > /dev/null
if [ "$?" -eq "0" ]; then
# Not running, signal this and stop.
log_progress_msg "(not running)"
log_end_msg 3
return 3
fi
log_progress_msg "(running)"
log_end_msg $?
return 0
}
createdir()
{
# In the future, use -P/-Z to have SE Linux enhancement
install -d --group="$2" --mode="$3" --owner="$1" "$4"
[ -x /sbin/restorecon ] && /sbin/restorecon "$4"
}
case "$1" in
start)
do_startall
;;
stop)
do_stopall
;;
reload|force-reload)
do_reloadall
;;
restart)
do_stopall
do_startall
;;
status)
do_checkall
exit $?
;;
start-instance)
if [ -f /etc/default/$2 ]; then
start_instance /etc/default/$2
else
log_failure_msg "Instance $2 does not exist."
fi
;;
stop-instance)
if [ -f /etc/default/$2 ]; then
stop_instance /etc/default/$2
else
log_failure_msg "Instance $2 does not exist."
fi
;;
reload-instance|force-reload-instance)
if [ -f /etc/default/$2 ]; then
reload_instance /etc/default/$2
else
log_failure_msg "Instance $2 does not exist."
fi
;;
restart-instance)
if [ -f /etc/default/$2 ]; then
stop_instance /etc/default/$2
start_instance /etc/default/$2
else
log_failure_msg "Instance $2 does not exist."
fi
;;
*)
SCRIPTNAME=$0
echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
echo " or {start-instance|stop-instance|restart-instance|" >&2
echo " reload-instance|force-reload-instance} " \
"<instance name>" >&2
exit 3
;;
esac
:
-- debconf information excluded
More information about the Pkg-cyrus-sasl2-debian-devel
mailing list