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From: Pablo Neira <pablo@netfilter.org>
To: Samir Bellabes <sbellabes@mandriva.com>
Cc: Harald Welte <laforge@netfilter.org>,
	netfilter-devel@lists.netfilter.org,
	"David S. Miller" <davem@davemloft.net>
Subject: Re: buffer overflow in ip_ct_{ftp,tftp,irc}
Date: Thu, 08 Sep 2005 01:43:34 +0200	[thread overview]
Message-ID: <431F7B26.4040302@netfilter.org> (raw)
In-Reply-To: <m2slwgsc4p.fsf@cerbere.dyndns.info>

Samir Bellabes wrote:
>  	for (i = 0; i < ports_c; i++) {
> +		/* don't allow bad port values */
> +		if (ports[i] < 1 || ports[i] > 65535) {
> +			printk(KERN_WARNING "ip_ct_ftp: ERROR port"
> +			       "should be between 1 and 65535\n");
> +			fini();
> +			return -EINVAL;
> +		}

Better something like this?
 
                                      -static int ports[MAX_PORTS]; 
                                               +static short 
ports[MAX_PORTS]; 
static int ports_c; 
        -module_param_array(ports, int, &ports_c, 0400); 
                 +module_param_array(ports, short, &ports_c, 0400); 
 


--
Pablo

  reply	other threads:[~2005-09-07 23:43 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-09-07 23:11 buffer overflow in ip_ct_{ftp,tftp,irc} Samir Bellabes
2005-09-07 23:15 ` Samir Bellabes
2005-09-07 23:43   ` Pablo Neira [this message]
2005-09-07 23:48     ` Pablo Neira
2005-09-09 22:59       ` Patrick McHardy
2005-09-12  8:44         ` Amin Azez
2005-09-12  8:49           ` Patrick McHardy
2005-09-20  7:11         ` Yasuyuki KOZAKAI
     [not found]         ` <200509200711.j8K7Bw3x002184@toshiba.co.jp>
2005-09-20  8:10           ` Pablo Neira
2005-09-20  9:35           ` Harald Welte
2005-09-20 12:48             ` Yasuyuki KOZAKAI
     [not found]             ` <200509201248.j8KCmNi9009046@toshiba.co.jp>
2005-09-20 14:15               ` Harald Welte
2005-09-24  8:43                 ` Yasuyuki KOZAKAI
2005-09-10  7:38       ` [PATCH] " Harald Welte

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