> I looked at the mac80211 code, the problem is the skb_push() you
quoted text
> guys do in this situation.

Thanks.

quoted text
> Things like loopback, which also orphan then reinject, don't trigger
> this problem because the re-input path trims things, never adds.
>=20
> The good news is that this is easy to fix.
>=20
> Since you've orphaned the SKB, simply adjust skb->truesize as you
> do pushes.  Like this:
>=20
> mac80211: Adjust truesize in ieee80211_tx_status() when reinjecting.
>=20
> Signed-off-by: David S. Miller <davem@davemloft.net>
=20
quoted text
> +	/* This is safe because the buffer has been orphaned.  */
> +	skb->truesize +=3D sizeof(*rthdr);

Hmm. The disconnect between truesize and skb->len+sizeof(*skb) was
usually 17 or 19 bytes and sizeof(*rthdr) is only 11. On the other hand,
I don't see where the other bytes should be coming from. I'll give this
a try, thanks.

johannes