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Date: Fri, 14 Oct 2016 16:46:18 +0530 (IST)
From: P J P <>
To: oss security list <>
cc: Huawei PSIRT <>
Subject: CVE request Qemu: char: divide by zero error in


Quick Emulator(Qemu) built with the 16550A UART emulation support is 
vulnerable to a divide by zero issue. It could occur while updating serial 
device parameters in 'serial_update_parameters'.

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

Upstream patch:


This issue was reported by Huawei Product Security Incident Response Team 
(PSIRT), Huawei 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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