From: Daniel Borkmann
Date: Thu, 10 Sep 2015 02:10:57 +0200
> When netlink mmap on receive side is the consumer of nf queue data,
> it can happen that in some edge cases, we write skb shared info into
> the user space mmap buffer:
>
> Assume a possible rx ring frame size of only 4096, and the ne
When netlink mmap on receive side is the consumer of nf queue data,
it can happen that in some edge cases, we write skb shared info into
the user space mmap buffer:
Assume a possible rx ring frame size of only 4096, and the network skb,
which is being zero-copied into the netlink skb, contains pag
