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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <51763AD7.10102@bfs.de>
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

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html