On Thu, Feb 18, 2021 at 11:06 PM Willem de Bruijn
wrote:
>
> On Thu, Feb 18, 2021 at 3:39 PM Jason A. Donenfeld wrote:
> >
> > The icmp{,v6}_send functions make all sorts of use of skb->cb, casting
>
> Again, if respinning, please briefly describe the specific buggy code
> path. I think it's info
On Thu, Feb 18, 2021 at 3:39 PM Jason A. Donenfeld wrote:
>
> The icmp{,v6}_send functions make all sorts of use of skb->cb, casting
Again, if respinning, please briefly describe the specific buggy code
path. I think it's informative and cannot be gleaned from the fix.
> it with IPCB or IP6CB, a
The icmp{,v6}_send functions make all sorts of use of skb->cb, casting
it with IPCB or IP6CB, assuming the skb to have come directly from the
inet layer. But when the packet comes from the ndo layer, especially
when forwarded, there's no telling what might be in skb->cb at that
point. As a result,
