netdev - Re: [PATCH v3 2/2] ip6_tunnel: fix potential issue in __ip6_tnl

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Message-ID: <20170608043847.uejvydlitzuik76j@ast-mbp>
Date:   Wed, 7 Jun 2017 21:38:49 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Haishuang Yan <yanhaishuang@...s.chinamobile.com>
Cc:     "=David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        Eric Dumazet <edumazet@...gle.com>
Subject: Re: [PATCH v3 2/2] ip6_tunnel: fix potential issue in __ip6_tnl_rcv

On Thu, Jun 08, 2017 at 12:32:44PM +0800, Haishuang Yan wrote:
> When __ip6_tnl_rcv fails, the tun_dst won't be freed, so call
> dst_release to free it in error code path.
> 
> CC: Alexei Starovoitov <ast@...com>
> Fixes: 8d79266bc48c ("ip6_tunnel: add collect_md mode to IPv6 tunnels")
> Signed-off-by: Haishuang Yan <yanhaishuang@...s.chinamobile.com>

I don't get it. Why did you send another version of the patch?
What was wrong with previous approach that myself and Eric acked?