[BUG] panic 2.6.20-rc3 in nf_conntrack

[Malte Schröder]

On Wednesday 03 January 2007 09:34, Martin Josefsson wrote:
> I saw your (correct) analysis after having made the patch below, it has
> been tested successfully by Bernhard Schmidt. (Netfilter bugzilla #528)
>
> Check the return value of nfct_nat() in device_cmp(), we might very well
> have non NAT conntrack entries as well.
>

I was not capable to reproduce the problem. Thanks :)

> Signed-off-by: Martin Josefsson <gandalf at wlug.westbo.se>
>
> --- linux-2.6.20-rc3/net/ipv4/netfilter/ipt_MASQUERADE.c.orig	2007-01-02
> 22:47:14.000000000 +0100 +++
> linux-2.6.20-rc3/net/ipv4/netfilter/ipt_MASQUERADE.c	2007-01-02
> 22:57:11.000000000 +0100 @@ -127,10 +127,13 @@
>  static inline int
>  device_cmp(struct ip_conntrack *i, void *ifindex)
>  {
> +	int ret;
>  #ifdef CONFIG_NF_NAT_NEEDED
>  	struct nf_conn_nat *nat = nfct_nat(i);
> +
> +	if (!nat)
> +		return 0;
>  #endif
> -	int ret;
>
>  	read_lock_bh(&masq_lock);
>  #ifdef CONFIG_NF_NAT_NEEDED

-- 
---------------------------------------
Malte Schröder
MalteSch at gmx.de
ICQ# 68121508
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