Re: [Xen-devel] [PATCH 1/1] xen-netback: process malformed sk_buff correctly to avoid BUG_ON()

[David Miller <davem@xxxxxxxxxxxxx>]

From: Dongli Zhang <dongli.zhang@xxxxxxxxxx>
Date: Wed, 28 Mar 2018 07:42:16 +0800

> The "BUG_ON(!frag_iter)" in function xenvif_rx_next_chunk() is triggered if
> the received sk_buff is malformed, that is, when the sk_buff has pattern
> (skb->data_len && !skb_shinfo(skb)->nr_frags). Below is a sample call
> stack:

We should fix the parts of the kernel which build illegal malformed
SKBs rather than adding checks to every driver in the tree.

I'm not applying this, sorry.

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