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Date: Fri, 16 Sep 2016 16:15:24 +0530 (IST)
From: P J P <>
To: oss security list <>
cc: Qinghao Tang <>, zhenhao hong <>
Subject: CVE request Qemu: virtio: null pointer dereference in


Quick emulator(Qemu) built with the virtio framework is vulnerable to a null 
pointer dereference flaw. It could occur if the guest was to set the I/O 
descriptor buffer length to a large value.

A privileged user inside guest could use this flaw to crash the Qemu instance 
on the host resulting in DoS.

Upstream fix:


This issue was independently reported by Qinghao Tang and Zhenhao Hong of the 
Marvel Team of Inc.

Thank you.
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F

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