CVE request Qemu: audio: memory leakage in ac97 device

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

  Hello,

Quick Emulator(Qemu) built with the ac97 audio device emulation support is 
vulnerable to a memory leakage issue. It could occur while doing a device 
unplug operation; Doing so repeatedly would result in leaking host memory, 
affecting other services on the host.

A privileged user inside guest could use this flaw to cause a DoS and/or 
potentially crash the Qemu process on the host.

Upstream patch:
---------------
  -> https://lists.nongnu.org/archive/html/qemu-devel/2017-01/msg01740.html

This issue was reported by Mr Li Qiang of 360.cn Inc.

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