diff --git a/extensions/drain.c b/extensions/drain.c
index 01d19cdf..9829eeb6 100644
--- a/extensions/drain.c
+++ b/extensions/drain.c
@@ -22,10 +22,13 @@ check_new_user(void *vdata)
 	struct Client *source_p = vdata;
 	const char *drain_reason = ConfigFileEntry.drain_reason;
 
+	if (IsAnyDead(source_p))
+		return;
+
 	if (drain_reason == NULL)
 		drain_reason = "This server is not accepting connections.";
 
-	if(IsExemptKline(source_p))
+	if (IsExemptKline(source_p))
 		return;
 
 	exit_client(source_p, source_p, &me, drain_reason);
diff --git a/extensions/m_webirc.c b/extensions/m_webirc.c
index 99ae7d42..f169435d 100644
--- a/extensions/m_webirc.c
+++ b/extensions/m_webirc.c
@@ -191,6 +191,9 @@ new_local_user(void *data)
 	struct Client *source_p = data;
 	struct ConfItem *aconf = source_p->localClient->att_conf;
 
+	if (aconf == NULL)
+		return;
+
 	if (!irccmp(aconf->info.name, "webirc."))
 		exit_client(source_p, source_p, &me, "Cannot log in using a WEBIRC block");
 }
diff --git a/extensions/sasl_usercloak.c b/extensions/sasl_usercloak.c
index 70001b7f..cb4b91ad 100644
--- a/extensions/sasl_usercloak.c
+++ b/extensions/sasl_usercloak.c
@@ -40,6 +40,9 @@ check_new_user(void *vdata)
 {
 	struct Client *source_p = vdata;
 
+	if (IsAnyDead(source_p))
+		return;
+
 	if (!IsIPSpoof(source_p))
 		return;