On Thu, Aug 13, 2020 at 2:16 PM Miaohe Lin <linmia...@huawei.com> wrote:
>
> If the skb is zcopied, we should increase the skb_uarg refcount before we
> involve skb_release_data(). See pskb_expand_head() as a reference.
Did you manage to observe a bug through this datapath in practice?
pskb_carve_inside_header is called
from pskb_carve
from pskb_extract
from rds_tcp_data_recv
That receive path should not see any packets with zerocopy state associated.
> Fixes: 6fa01ccd8830 ("skbuff: Add pskb_extract() helper function")
> Signed-off-by: Miaohe Lin <linmia...@huawei.com>
