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| author | Stephen Gallagher <sgallagh@redhat.com> | 2009-06-19 11:28:49 -0400 |
|---|---|---|
| committer | Stephen Gallagher <sgallagh@redhat.com> | 2009-06-19 11:58:10 -0400 |
| commit | 12cbba5545aefa59e27f683e17e05b8e80063718 (patch) | |
| tree | 5d063234368e98e3691eaaf060f2c13781f720a1 /server | |
| parent | 673c2ce9b3371241de872b2bd206f732485888cb (diff) | |
| download | sssd-12cbba5545aefa59e27f683e17e05b8e80063718.tar.gz sssd-12cbba5545aefa59e27f683e17e05b8e80063718.tar.bz2 sssd-12cbba5545aefa59e27f683e17e05b8e80063718.zip | |
Protect against segfault in service_signal_reload
There is a potential race condition where the monitor may attempt
to signal a reload of a child process before the communication
sbus channel is available. If this happens, we will just exit this
function and let the monitor kill and restart the child process.
Diffstat (limited to 'server')
| -rw-r--r-- | server/monitor/monitor.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/server/monitor/monitor.c b/server/monitor/monitor.c index e4fca25a..5cc73c8b 100644 --- a/server/monitor/monitor.c +++ b/server/monitor/monitor.c @@ -525,6 +525,15 @@ static int service_signal_reload(struct mt_svc *svc) return EOK; } + if (!svc->mt_conn) { + /* Avoid a race condition where we are trying to + * order a service to reload that hasn't started + * yet. + */ + DEBUG(1,("Could not reload service [%s].\n", svc->name)); + return EIO; + } + conn = sbus_get_connection(svc->mt_conn->conn_ctx); msg = dbus_message_new_method_call(NULL, SERVICE_PATH, |