netdev - Re: [PATCH nf 1/1] netfilter: snmp: Fix one possible panic when snmp_trap

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Date:   Mon, 20 Mar 2017 12:37:23 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     fgao@...ai8.com, pablo@...filter.org, jolsa@...hat.com,
        davem@...emloft.net, netfilter-devel@...r.kernel.org,
        netdev@...r.kernel.org, gfree.wind@...il.com
Subject: Re: [PATCH nf 1/1] netfilter: snmp: Fix one possible panic when
 snmp_trap_helper fail to register

Hello!

On 3/20/2017 4:44 AM, fgao@...ai8.com wrote:

> From: Gao Feng <fgao@...ai8.com>
>
> In the commit ("netfilter: nf_conntrack: nf_conntrack snmp helper"),

    Need to specify the 12-digit SHA1 ID as well.

> the snmp_helper is replaced by nf_nat_snmp_hook. So the snmp_helper
> is never registered. But it still tries to unregister the snmp_helper,
> it could cause the panic.
>
> Now remove the useless snmp_helper and the unregister call in the
> error handler.
>
> Fixes: 93557f53e1fb ("netfilter: nf_conntrack: nf_conntrack snmp helper")
>
> Signed-off-by: Gao Feng <fgao@...ai8.com>
[...]

MBR, Sergei