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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 | |
| 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.
| -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, |