oss-security - CVE Request: Qemu: scsi: mptsas infinite loop in mptsas_fetch

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Message-ID: <alpine.LFD.2.20.1605241505150.26750@wniryva>
Date: Tue, 24 May 2016 15:07:37 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Li Qiang <liqiang6-s@....cn>
Subject: CVE Request: Qemu: scsi: mptsas infinite loop in
 mptsas_fetch_requests

   Hello,

Quick Emulator(Qemu) built with the LSI SAS1068 Host Bus Adapter emulation 
support is vulnerable to an infinite loop issue. It could occur while fetching 
new requests in mptsas_fetch_requests().

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

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg04027.html

This issue was discovered and reported by Li Qiang of 360.cn 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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