Subject: Re: xennet_start_xmit assumptions

From: Sowmini Varadhan <[email-masked]>
Date: Thu, 19 Jan 2017 13:47:33 -0500

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

_______________________________________________
Xen-devel mailing list
[email-masked]
https://lists.xen.org/xen-devel