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Date: Tue, 1 Mar 2016 15:47:58 +0530 (IST)
From: P J P <>
To: oss security list <>
cc: Donghai Zdh <>
Subject: CVE request Qemu: OOB access in address_space_rw leads to segmentation


Qemu emulator built to use 'address_space_translate' to map an address to a 
MemoryRegionSection is vulnerable to an OOB r/w access issue. It could occur 
while doing pci_dma_read/write calls. Affects Qemu versions >= 1.6.0 and <= 

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

Upstream patches:


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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