Re: [Xen-devel] xennet_start_xmit assumptions

[Sowmini Varadhan <sowmini.varadhan@xxxxxxxxxx>]

On (01/19/17 11:37), David Miller wrote:
> 
> I thought we had code which made sure that at least a minimal
> link layer header was present in the SKB?
> 
> Specifically I'm talking about the dev_validate_header() check.
> That is supposed to protect us from these kinds of situations.

ah, but I run my pf_packet application as root, so I have 
capable(CAP_SYS_RAWIO), so I slip through the dev_validate_header()
check.

--Sowmini

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