netdev - Re: [PATCH net] sctp: do not mark sk dumped when inet_sctp_diag

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Message-ID: <20170915125533.GD4529@localhost.localdomain>
Date:   Fri, 15 Sep 2017 09:55:33 -0300
From:   Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
To:     Xin Long <lucien.xin@...il.com>
Cc:     network dev <netdev@...r.kernel.org>, linux-sctp@...r.kernel.org,
        davem@...emloft.net, Neil Horman <nhorman@...driver.com>
Subject: Re: [PATCH net] sctp: do not mark sk dumped when inet_sctp_diag_fill
 returns err

On Fri, Sep 15, 2017 at 11:02:48AM +0800, Xin Long wrote:
> sctp_diag would not actually dump out sk/asoc if inet_sctp_diag_fill
> returns err, in which case it shouldn't mark sk dumped by setting
> cb->args[3] as 1 in sctp_sock_dump().
> 
> Otherwise, it could cause some asocs to have no parent's sk dumped
> in 'ss --sctp'.
> 
> So this patch is to not set cb->args[3] when inet_sctp_diag_fill()
> returns err in sctp_sock_dump().
> 
> Fixes: 8f840e47f190 ("sctp: add the sctp_diag.c file")
> Signed-off-by: Xin Long <lucien.xin@...il.com>

Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@...il.com>

> ---
>  net/sctp/sctp_diag.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/net/sctp/sctp_diag.c b/net/sctp/sctp_diag.c
> index 7008a99..22ed01a 100644
> --- a/net/sctp/sctp_diag.c
> +++ b/net/sctp/sctp_diag.c
> @@ -309,7 +309,6 @@ static int sctp_sock_dump(struct sctp_transport *tsp, void *p)
>  					cb->nlh->nlmsg_seq,
>  					NLM_F_MULTI, cb->nlh,
>  					commp->net_admin) < 0) {
> -			cb->args[3] = 1;
>  			err = 1;
>  			goto release;
>  		}
> -- 
> 2.1.0
> 
> --
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