netdev - Re: [V2 PATCH net-next 0/2] Fixes for XDP

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Date:   Fri, 08 Sep 2017 20:54:26 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     brouer@...hat.com
Cc:     netdev@...r.kernel.org, borkmann@...earbox.net,
        john.fastabend@...il.com, andy@...yhouse.net
Subject: Re: [V2 PATCH net-next 0/2] Fixes for XDP_REDIRECT map

From: Jesper Dangaard Brouer <brouer@...hat.com>
Date: Thu, 07 Sep 2017 14:33:08 +0200

> This my V2 of catching XDP_REDIRECT and bpf_redirect_map() API usage
> that can potentially crash the kernel.  Addressed Daniels feedback in
> patch01, and added patch02 which catch and cleanup dangling map
> pointers.
> 
> I know John and Daniel are working on a more long-term solution, of
> recording the bpf_prog pointer together with the map pointer.  I just
> wanted to propose these fixes as a stop-gap to the potential crashes.

Jesper if these are still relevant, please resubmit against the 'net'
tree, thanks!