Re: skb_checksum_help

[Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>]

On Sun, Jan 23, 2005 at 08:27:15PM -0800, David S. Miller wrote:
> 
> My current guess is that this is some successful exploit
> of some as-yet-unknown issue in netfilter's fragmentation
> handling.  But that's just a guess.  If some code underruns
> skb->data somehow while unfragging/refragging, that's a sure
> fire way to corrupt things such as the skb->ip_summed field.

Another possibility is some bogus netfilter module that the
reporter is using.  His backtrace was showing an ipq_kill which
isn't in the main tree.
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