From mboxrd@z Thu Jan  1 00:00:00 1970
From: walter harms <wharms@bfs.de>
Date: Tue, 23 Apr 2013 07:40:07 +0000
Subject: Re: [patch] isdn: mISDN: set ->family in ->getname()
Message-Id: <51763AD7.10102@bfs.de>
List-Id: <kernel-janitors.vger.kernel.org>
References: <20130423062414.GC15893@elgon.mountain>
In-Reply-To: <20130423062414.GC15893@elgon.mountain>
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To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Karsten Keil <isdn@linux-pingi.de>, "David S. Miller" <davem@davemloft.net>, netdev@vger.kernel.org, kernel-janitors@vger.kernel.org



Am 23.04.2013 08:24, schrieb Dan Carpenter:
> The "maddr->family" variable was not set but instead it leaked stack
> information to userspace.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> 
> diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c
> index 8b07f83..a838864 100644
> --- a/drivers/isdn/mISDN/socket.c
> +++ b/drivers/isdn/mISDN/socket.c
> @@ -578,6 +578,7 @@ data_sock_getname(struct socket *sock, struct sockaddr *addr,
>  	lock_sock(sk);
>  
>  	*addr_len = sizeof(*maddr);
> +	maddr->family = AF_ISDN;
>  	maddr->dev = _pms(sk)->dev->id;
>  	maddr->channel = _pms(sk)->ch.nr;
>  	maddr->sapi = _pms(sk)->ch.addr & 0xff;

just nitpicking ...
net/nfc/llcp/sock.c has a memset(..0,..) for the struct. Is this an options here also ?
(just to make sure everything is 0 in the beginning)
re,
 wh