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Bug 1402284 - (CVE-2016-9912) CVE-2016-9912 Qemu: display: virtio-gpu: memory leakage when destroying gpu resource
CVE-2016-9912 Qemu: display: virtio-gpu: memory leakage when destroying gpu r...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20161128,reported=2...
: Security
Depends On: 1402285
Blocks: 1395985
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Reported: 2016-12-07 02:44 EST by Prasad J Pandit
Modified: 2018-07-18 11:08 EDT (History)
36 users (show)

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Description Prasad J Pandit 2016-12-07 02:44:01 EST 
Quick Emulator(Qemu) built with the Virtio GPU Device emulator support is
vulnerable to a memory leakage issue. It could occur while destroying gpu
resource object in 'virtio_gpu_resource_destroy'.

A guest user/process could use this flaw to leak host memory bytes, resulting
in DoS for a host.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg05043.html

Reference:
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  -> http://www.openwall.com/lists/oss-security/2016/12/06/12
Comment 1 Prasad J Pandit 2016-12-07 02:45:18 EST 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1402285]
Comment 3 Cole Robinson 2017-01-16 13:49:15 EST 
commit b8e23926c568f2e963af39028b71c472e3023793
Author: Li Qiang <liq3ea@gmail.com>
Date:   Mon Nov 28 21:29:25 2016 -0500

    virtio-gpu: call cleanup mapping function in resource destroy
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