netdev - Re: [patch] isdn: mISDN: set ->family in ->getname()

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Date:	Tue, 23 Apr 2013 09:40:07 +0200
From:	walter harms <wharms@....de>
To:	Dan Carpenter <dan.carpenter@...cle.com>
CC:	Karsten Keil <isdn@...ux-pingi.de>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: Re: [patch] isdn: mISDN: set ->family in ->getname()



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@...cle.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

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