Fixed a potential crash from accessing invalid memory after unbanning people when checking whether a host is akick stuck. Fixes /cs unban not reapplying stuck ban masks.

1 files changed, 7 insertions, 2 deletions

diff --git a/src/botserv.c b/src/botserv.c
index 0b2ad746c..605a0292e 100644
--- a/src/botserv.c
+++ b/src/botserv.c
@@ -789,11 +789,16 @@ void bot_join(ChannelInfo * ci)
                     anope_cmd_mode(whosends(ci), ci->name, "-b %s",
                                    ban->mask);
                     if (ircdcap->tsmode)
-                        av[3] = ban->mask;
+                        av[3] = sstrdup(ban->mask);
                     else
-                        av[2] = ban->mask;
+                        av[2] = sstrdup(ban->mask);
 
                     do_cmode(whosends(ci), ac, av);
+
+                    if (ircdcap->tsmode)
+                        free(av[3]);
+                    else
+                        free(av[2]);
                 }
             }