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Date: Wed, 26 Apr 2017 12:52:02 +0530 (IST)
From: P J P <>
To: oss security list <>
cc: YY Z <>, Li Qiang <>
Subject: CVE-2017-8112 Qemu: scsi: vmw_pvscsi: infinite loop in pvscsi_log2


Quick Emulator(Qemu) built with the VMWARE PVSCSI paravirtual SCSI bus 
emulation support is vulnerable to an infinite loop issue. It could occur 
while initialising SCSI message ring buffer in pvscsi_ring_init_msg().

A privileged user inside guest could use this flaw to consume host cpu cycles 
or crash the Qemu process resulting in DoS.

Upstream patch:


This issue was independently reported by Li Qiang of Qihoo 360 Gear 
Team and YY Z(CC'd).

'CVE-2017-8112' assigned via ->

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

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