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Date: Fri, 7 Oct 2016 16:46:11 +0530 (IST)
From: P J P <>
To: oss security list <>
cc: Li Qiang <>
Subject: CVE request Qemu: usb: hcd-ehci: memory leak in ehci_process_itd


Qemu emulator(Qemu) built with the USB EHCI emulation support is vulnerable to 
a memory leakage flaw. It could occur while processing isochronous transfer 
descriptors(iTD), with buffer page select(PG) index that falls beyond buffer 
page array area.

A privileged user inside guest could use this flaw to leak Qemu memory bytes 
leading to a DoS on the host.

Upstream fix:


This issue was reported by Li Qiang 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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