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Date: Wed, 13 Apr 2016 23:38:26 +0530 (IST)
From: P J P <>
To: oss security list <>
cc: Donghai Zdh <>
Subject: CVE request Qemu: i386: leakage of stack memory to guest in


Qemu emulator built with the Task Priority Register(TPR) optimizations for 
32-bit Windows guests, is vulnerable to a information leakage issue. It could 
occur while accessing Task Priority Register(TPR).

A privileged user/process inside guest could use this issue to leak host 
memory bytes.

Upstream patch:


This issue was discovered by Donghai Zdh of Alibaba 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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