CVE request Qemu: net: vmxnet3: host memory leakage

[P J P <ppandit () redhat com>]

  Hello,

Qemu emulator built with a VMWARE VMXNET3 paravirtual NIC emulator support is 
vulnerable to a memory leakage flaw. It occurs when a guest repeatedly tries 
to activate the vmxnet3 device.

A privileged guest user could use this flaw to leak host memory, resulting in 
DoS on the host.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg02299.html


This issue was discovered by Qinghao Tang of QIHU 360 Marvel Team.

Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
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