Re: [PATCH RFC v2 30/33] xdp: clear grow memory in bpf_xdp_adjust_tail()

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On Wed, 08 Apr 2020 14:49:14 -0700 (PDT)
David Miller <davem@xxxxxxxxxxxxx> wrote:

> From: Jesper Dangaard Brouer <brouer@xxxxxxxxxx>
> Date: Wed, 08 Apr 2020 13:53:06 +0200
> 
> > @@ -3445,6 +3445,11 @@ BPF_CALL_2(bpf_xdp_adjust_tail, struct xdp_buff *, xdp, int, offset)
> >  	if (unlikely(data_end < xdp->data + ETH_HLEN))
> >  		return -EINVAL;
> >  
> > +	/* Clear memory area on grow, can contain uninit kernel memory */
> > +	if (offset > 0) {
> > +		memset(xdp->data_end, 0, offset);
> > +	}  
> 
> Single statement basic blocks should elide curly braces.

Fixed

-- 
Best regards,
  Jesper Dangaard Brouer
  MSc.CS, Principal Kernel Engineer at Red Hat
  LinkedIn: http://www.linkedin.com/in/brouer




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