linux-kernel - Re: dev_ifname32() fails on 32->64bit calls in copy_in

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Message-Id: <1193792769.9928.84.camel@pasglop>
Date:	Wed, 31 Oct 2007 12:06:09 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Joel Becker <Joel.Becker@...cle.com>
Cc:	Linux Netdev <linux-netdev@...r.kernel.org>,
	Linux Kernel Mailing List <Linux-Kernel@...r.kernel.org>
Subject: Re: dev_ifname32() fails on 32->64bit calls in copy_in_user().


On Tue, 2007-10-30 at 17:38 -0700, Joel Becker wrote:
> Hello folks,
> 	I've been using a nice program on ppc32 with a ppc64
> system+kernel.  It uses netlink to determine some network interface
> information.  Recent kernels cause it to exit at the netlink stage.  At
> first, I thought it was a bug in the program.  Now I'm not so sure.

 .../...

Reproduced here, I'll have a look, thanks.

Ben.


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