[GIT PULL][SRU][X] CVE-2019-3900: vhost DoS

[Tyler Hicks]

I've create a pull request to make this large patch set easier to apply
in the case that it receives all needed ACKs.

The following changes since commit 529f12a49d563e3ff1f54e7baf1920275225762a:

  Linux 4.4.186 (2019-07-31 02:23:27 -0400)

are available in the git repository at:

  https://git.launchpad.net/~tyhicks/ubuntu/+source/linux/+git/xenial cves/CVE-2019-3900

for you to fetch changes up to 22f96a830b9ef393ed3c4765d327fa1ba7e4c8fb:

  vhost: scsi: add weight support (2019-08-05 17:51:27 +0000)

----------------------------------------------------------------
Jason Wang (6):
      vhost: introduce vhost_vq_avail_empty()
      vhost_net: tx batching
      vhost_net: introduce vhost_exceeds_weight()
      vhost: introduce vhost_exceeds_weight()
      vhost_net: fix possible infinite loop
      vhost: scsi: add weight support

Paolo Abeni (1):
      vhost_net: use packet weight for rx handler, too

Willem de Bruijn (1):
      vhost_net: do not stall on zerocopy depletion

haibinzhang(张海斌) (1):
      vhost-net: set packet weight of tx polling to 2 * vq size

 drivers/vhost/net.c   | 60 ++++++++++++++++++++++++++++++++-------------------
 drivers/vhost/scsi.c  | 14 ++++++++----
 drivers/vhost/vhost.c | 34 ++++++++++++++++++++++++++++-
 drivers/vhost/vhost.h |  7 +++++-
 4 files changed, 87 insertions(+), 28 deletions(-)