From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net-next 2/2] dccp: remove unnecessary codes in ipv6.c
Date: Sun, 01 Jul 2012 20:26:43 -0700 (PDT)
Message-ID: <20120701.202643.159397793740641700.davem@davemloft.net>
References: <1341199140-17135-1-git-send-email-roy.qing.li@gmail.com>
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From: roy.qing.li@gmail.com
Date: Mon,  2 Jul 2012 11:19:00 +0800

> -	if (opt != NULL) {
> -		newnp->opt = ipv6_dup_options(newsk, opt);
> -		if (opt != np->opt)
> -			sock_kfree_s(sk, opt, opt->tot_len);
> -	}

Same bug as your other patch, this leaks options.