diff options
| author |   Steven <sluong@cisco.com> | 2017-02-03 09:30:37 -0800 |
|---|---|---|
| committer |   Damjan Marion <damarion@cisco.com> | 2017-02-03 20:56:35 +0100 |
| commit | e23472662cfac98649b3cbc7a2a3b80806ade54f (patch) | |
| tree | 2bc01abe3da1d47146c8d33deeb9033e966c4f93 | |
| parent | 43c9c959ff42e8357bb6ad62565ce931cfda9f72 (diff) | |
vhost-user: fix missing speculative enqueue unwind
Running trex in a VM with a bad config, trex sent a bogus pack from
the VM to the Virtual interface. It caused a crash.
Change-Id: I64d0197b444265553ab4c24f21e6a962e89cb587
Signed-off-by: Steven <sluong@cisco.com>
| -rw-r--r-- | vnet/vnet/devices/virtio/vhost-user.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/vnet/vnet/devices/virtio/vhost-user.c b/vnet/vnet/devices/virtio/vhost-user.c index 88f9ddecdbc..655df145979 100644 --- a/vnet/vnet/devices/virtio/vhost-user.c +++ b/vnet/vnet/devices/virtio/vhost-user.c @@ -1677,6 +1677,10 @@ vhost_user_if_input (vlib_main_t * vm, if (PREDICT_FALSE (vum->cpus[cpu_index].rx_buffers_len == 0)) { + /* Cancel speculation */ + to_next--; + n_left_to_next++; + /* * Checking if there are some left buffers. * If not, just rewind the used buffers and stop. |