netdev - Re: [PATCH] sctp: fix memleak in sctp_send_reset

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Message-ID: <20190814001037.GB11098@localhost.localdomain>
Date:   Tue, 13 Aug 2019 20:10:37 -0400
From:   Neil Horman <nhorman@...driver.com>
To:     zhengbin <zhengbin13@...wei.com>
Cc:     vyasevich@...il.com, marcelo.leitner@...il.com,
        davem@...emloft.net, linux-sctp@...r.kernel.org,
        netdev@...r.kernel.org, yi.zhang@...wei.com
Subject: Re: [PATCH] sctp: fix memleak in sctp_send_reset_streams

On Tue, Aug 13, 2019 at 10:05:50PM +0800, zhengbin wrote:
> If the stream outq is not empty, need to kfree nstr_list.
> 
> Fixes: d570a59c5b5f ("sctp: only allow the out stream reset when the stream outq is empty")
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: zhengbin <zhengbin13@...wei.com>
> ---
>  net/sctp/stream.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/net/sctp/stream.c b/net/sctp/stream.c
> index 2594660..e83cdaa 100644
> --- a/net/sctp/stream.c
> +++ b/net/sctp/stream.c
> @@ -316,6 +316,7 @@ int sctp_send_reset_streams(struct sctp_association *asoc,
>  		nstr_list[i] = htons(str_list[i]);
> 
>  	if (out && !sctp_stream_outq_is_empty(stream, str_nums, nstr_list)) {
> +		kfree(nstr_list);
>  		retval = -EAGAIN;
>  		goto out;
>  	}
> --
> 2.7.4
> 
> 
Acked-by: Neil Horman <nhorman@...driver.com>