Re: [PATCH] Staging: ath6kl: fix potential buffer overflow

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On Tue, Dec 28, 2010 at 05:06:57PM -0800, Vipin Mehta wrote:
> On Tue, Dec 28, 2010 at 04:59:08PM -0800, Phillip Simbwa wrote:
> > Off by one
> > 
> > Signed-off-by: Phillip Simbwa <simbwa at gmail dot com>
> > 
> > 
> > --- orig/drivers/staging/ath6kl/miscdrv/ar3kps/ar3kpsconfig.c	2010-12-19 15:52:56.764479706 +0300
> > +++ devel/drivers/staging/ath6kl/miscdrv/ar3kps/ar3kpsconfig.c	2010-12-29 03:56:21.855890791 +0300
> > @@ -360,8 +360,8 @@
> >          	status = 1;
> >          	goto complete;
> >      	}
> > -        len = (firmware->size > MAX_BDADDR_FORMAT_LENGTH)? MAX_BDADDR_FORMAT_LENGTH: firmware->size;
> > -	memcpy(config_bdaddr, firmware->data,len);
> > +	len = min(firmware->size, MAX_BDADDR_FORMAT_LENGTH - 1);
> > +	memcpy(config_bdaddr, firmware->data, len);
> >  	config_bdaddr[len] = '\0';
> >  	write_bdaddr(hdev,config_bdaddr,BDADDR_TYPE_STRING);
> >         	A_RELEASE_FIRMWARE(firmware);
> LGTM.

"Lowly Gods Toss Marbles"?

What does this mean, do you ack this patch?  If so, then say that, with
a real line to have added to the patch.

thanks,

greg k-h
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