http://xorl.wordpress.com/2009/05/28/irssi-event_wallops-off-by-one-readwrite/ --- src/fe-common/irc/fe-events.c 2007-10-06 05:38:19.000000000 -0400 +++ src/fe-common/irc/fe-events.c.oden 2009-06-16 05:32:15.000000000 -0400 @@ -278,7 +278,7 @@ static void event_wallops(IRC_SERVER_REC tmp = g_strdup(data+8); len = strlen(tmp); - if (tmp[len-1] == 1) tmp[len-1] = '\0'; + if (len >= 1 && tmp[len-1] == 1) tmp[len-1] = '\0'; printformat(server, NULL, MSGLEVEL_WALLOPS, IRCTXT_ACTION_WALLOPS, nick, tmp); g_free(tmp); }