On Tue, Jun 12, 2012 at 02:08:29AM +0100, Ben Hutchings wrote:
> On Mon, Jun 11, 2012 at 05:04:36PM -0700, gre...@linuxfoundation.org wrote:
> [...]
> > From: Bart Westgeest <b...@elbrys.com>
> > Date: Mon, 11 Jun 2012 12:13:08 -0400
> > Subject: staging: usbip: bugfix for stack corruption on 64-bit architectures
> > 
> > Previously a 6 byte array (buf) was erroneously cast to a 8 byte long
> > (event_bits) on 64-bit architectures which caused a stack corruption.
> > 
> > Signed-off-by: Bart Westgeest <b...@elbrys.com>
> > Cc: stable <stable@vger.kernel.org>
> > Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
> > ---
> >  drivers/staging/usbip/vhci_hcd.c |    2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/staging/usbip/vhci_hcd.c 
> > b/drivers/staging/usbip/vhci_hcd.c
> > index f708cba..117a7ad 100644
> > --- a/drivers/staging/usbip/vhci_hcd.c
> > +++ b/drivers/staging/usbip/vhci_hcd.c
> > @@ -205,7 +205,7 @@ static int vhci_hub_status(struct usb_hcd *hcd, char 
> > *buf)
> >     int             retval = 0;
> >  
> >     /* the enough buffer is allocated according to USB_MAXCHILDREN */
> > -   unsigned long   *event_bits = (unsigned long *) buf;
> > +   u32             *event_bits = (unsigned long *) buf;
> [...]
> 
> This is ridiculous; the variable type is fixed but not the type
> in the cast *right next to it*?

Ugh, you are right, that's horrible, sorry for letting that slip
through, I'll go revert it...

greg k-h
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