Maybe change the title to something like:
vhost: fix vring requests validation broken if no FD in payload
On 11/13/19 12:03 PM, Zhike Wang wrote:
> When VHOST_USER_VRING_NOFD_MASK is set, the fd_num is 0,
> so validate_msg_fds() will return error. In this case,
> the negotiation of vring message between vhost user front end and
> back end would fail, and as a result, vhost user link could NOT be up.
>
> How to reproduce:
> 1.Run dpdk testpmd insides VM, which locates at host with ovs+dpdk.
> 2.Notice that inside ovs there are endless logs regarding failure to
> handle VHOST_USER_SET_VRING_CALL, and link of vm could NOT be up.
>
> Fixes: bf47225 ("vhost: fix possible denial of service by leaking FDs")
> Signed-off-by: Zhike Wang <wangzk...@163.com>
> ---
> lib/librte_vhost/vhost_user.c | 13 ++++++++++---
> 1 file changed, 10 insertions(+), 3 deletions(-)
>
otherwise:
Reviewed-by: Maxime Coquelin <maxime.coque...@redhat.com>
The title can be changed while applying if you agree with it, no need to
send v3.
I'll take care of the different backports.
Thanks,
Maxime
