Subject: Re: [PATCH] netfilter: guard the size of the nf_ct_ext

From: Patrick McHardy <[email-masked]>
Date: Mon, 15 Nov 2010 12:10:05 +0100

On 15.11.2010 07:15, Changli Gao wrote:
> We'd better guard the size of the nf_ct_ext, as the nf_ct_ext.len is u8.
> If the size is bigger than 255, a warning will be printed.

Why are you checking this in basically every possible spot?
Just checking once during registration (assuming the worst
case of a conntrack using every possible extension) should
be enough.