diff --git a/Changes b/Changes
index 5a07a36b1..3c1a507ad 100644
--- a/Changes
+++ b/Changes
@@ -13,6 +13,9 @@ Provided by Anope Dev. <dev@anope.org> - 2006
 03/01 F Fixed # prefix check on /cs forbid.                               [#461]
 03/01 F Fixed events on /join 0.                                          [#417]
 03/01 F Added NULL checks to add_invite and add_exception.                [#419]
+03/01 F Fixed suspend check on /cs invite.                                [#429]
+03/01 F Fixed memleaks in some protocol files.                            [#434]
+03/01 F Fixed bot check on /bs unassign.                                  [#446]
 
 Provided by nenolod. <nenolod@nenolod.net> - 2006
 02/03 A Support for Charybdis IRCd.                                       [ #00]
diff --git a/src/core/bs_unassign.c b/src/core/bs_unassign.c
index 1789189ba..1bc978c81 100644
--- a/src/core/bs_unassign.c
+++ b/src/core/bs_unassign.c
@@ -79,9 +79,10 @@ int do_unassign(User * u)
         notice_lang(s_BotServ, u, CHAN_X_FORBIDDEN, chan);
     else if (!is_services_admin(u) && !check_access(u, ci, CA_ASSIGN))
         notice_lang(s_BotServ, u, ACCESS_DENIED);
+    else if (!ci->bi)
+        notice_help(s_BotServ, u, BOT_NOT_ASSIGNED);
     else {
-        if (ci->bi)
-            unassign(u, ci);
+        unassign(u, ci);
         notice_lang(s_BotServ, u, BOT_UNASSIGN_UNASSIGNED, ci->name);
     }
     return MOD_CONT;
diff --git a/src/core/cs_invite.c b/src/core/cs_invite.c
index bd3bb8e2b..1687151fc 100644
--- a/src/core/cs_invite.c
+++ b/src/core/cs_invite.c
@@ -79,6 +79,8 @@ int do_invite(User * u)
         notice_lang(s_ChanServ, u, CHAN_X_NOT_REGISTERED, chan);
     } else if (ci->flags & CI_VERBOTEN) {
         notice_lang(s_ChanServ, u, CHAN_X_FORBIDDEN, chan);
+    } else if (ci->flags & CI_SUSPENDED) {
+        notice_lang(s_ChanServ, u, CHAN_X_FORBIDDEN, chan);
     } else if (!u || !check_access(u, ci, CA_INVITE)) {
         notice_lang(s_ChanServ, u, PERMISSION_DENIED);
     } else {
diff --git a/src/protocol/charybdis.c b/src/protocol/charybdis.c
index 5add45073..a04653e27 100644
--- a/src/protocol/charybdis.c
+++ b/src/protocol/charybdis.c
@@ -676,11 +676,16 @@ int anope_event_tburst(char *source, int ac, char **av)
             alog("debug: TOPIC %s for nonexistent channel %s",
                  merge_args(ac - 1, av + 1), av[0]);
         }
+        if (setter)
+            free(setter);
         return MOD_CONT;
     }
 
-    if (check_topiclock(c, topic_time))
+    if (check_topiclock(c, topic_time)) {
+        if (setter)
+            free(setter);
         return MOD_CONT;
+    }
 
     if (c->topic) {
         free(c->topic);
@@ -693,6 +698,8 @@ int anope_event_tburst(char *source, int ac, char **av)
     c->topic_time = topic_time;
 
     record_topic(av[0]);
+    if (setter)
+        free(setter);
     return MOD_CONT;
 }
 
@@ -1702,7 +1709,10 @@ int anope_event_bmask(char *source, int ac, char **av)
             if (!stricmp(av[2], "I")) {
                 add_invite(c, b);
             }
+            if (b)
+                free(b);
         }
+        free(bans);
     }
     return MOD_CONT;
 }
diff --git a/src/protocol/ptlink.c b/src/protocol/ptlink.c
index 13f1ba7b3..8b7039941 100644
--- a/src/protocol/ptlink.c
+++ b/src/protocol/ptlink.c
@@ -418,6 +418,7 @@ int anope_event_newmask(char *source, int ac, char **av)
 {
     User *u;
     char *newhost = NULL, *newuser = NULL;
+    int tofree = 0;
 
     if (ac != 1)
         return MOD_CONT;
@@ -445,7 +446,9 @@ int anope_event_newmask(char *source, int ac, char **av)
     newuser = myStrGetOnlyToken(av[0], '@', 0);
     if (newuser) {
         newhost = myStrGetTokenRemainder(av[0], '@', 1);
+        tofree = 1;
         change_user_username(u, newuser);
+        free(newuser);
     } else {
         newhost = av[0];
     }
@@ -455,9 +458,11 @@ int anope_event_newmask(char *source, int ac, char **av)
 
     u->mode |= UMODE_VH;
 
-    if (newhost) {
+    if (newhost)
         change_user_host(u, newhost);
-    }
+
+    if (tofree)
+        free(newhost);
 
     return MOD_CONT;
 }
diff --git a/src/protocol/ratbox.c b/src/protocol/ratbox.c
index 47b1b68f9..ea591a0ce 100644
--- a/src/protocol/ratbox.c
+++ b/src/protocol/ratbox.c
@@ -667,11 +667,16 @@ int anope_event_tburst(char *source, int ac, char **av)
             alog("debug: TOPIC %s for nonexistent channel %s",
                  merge_args(ac - 1, av + 1), av[0]);
         }
+        if (setter)
+            free(setter);
         return MOD_CONT;
     }
 
-    if (check_topiclock(c, topic_time))
+    if (check_topiclock(c, topic_time)) {
+        if (setter)
+            free(setter);
         return MOD_CONT;
+    }
 
     if (c->topic) {
         free(c->topic);
@@ -684,6 +689,8 @@ int anope_event_tburst(char *source, int ac, char **av)
     c->topic_time = topic_time;
 
     record_topic(av[0]);
+    if (setter)
+        free(setter);
     return MOD_CONT;
 }
 
@@ -1679,7 +1686,10 @@ int anope_event_bmask(char *source, int ac, char **av)
             if (!stricmp(av[2], "I")) {
                 add_invite(c, b);
             }
+            if (b)
+                free(b);
         }
+        free(bans);
     }
     return MOD_CONT;
 }
diff --git a/src/protocol/shadowircd.c b/src/protocol/shadowircd.c
index 6d3410073..0c2741f93 100644
--- a/src/protocol/shadowircd.c
+++ b/src/protocol/shadowircd.c
@@ -706,11 +706,16 @@ int anope_event_tburst(char *source, int ac, char **av)
             alog("debug: TOPIC %s for nonexistent channel %s",
                  merge_args(ac - 1, av + 1), av[0]);
         }
+        if (setter)
+            free(setter);
         return MOD_CONT;
     }
 
-    if (check_topiclock(c, topic_time))
+    if (check_topiclock(c, topic_time)) {
+        if (setter)
+            free(setter);
         return MOD_CONT;
+    }
 
     if (c->topic) {
         free(c->topic);
@@ -723,6 +728,8 @@ int anope_event_tburst(char *source, int ac, char **av)
     c->topic_time = topic_time;
 
     record_topic(av[0]);
+    if (setter)
+        free(setter);
     return MOD_CONT;
 }
 
@@ -1627,7 +1634,10 @@ int anope_event_bmask(char *source, int ac, char **av)
             if (!stricmp(av[2], "I")) {
                 add_invite(c, b);
             }
+            if (b)
+                free(b);
         }
+        free(bans);
     }
     return MOD_CONT;
 }