oss-sec mailing list archives

CVE request Qemu: audio: intel-hda: infinite loop in processing dma buffer stream

From: P J P <ppandit () redhat com>
Date: Mon, 24 Oct 2016 16:06:34 +0530 (IST)

  Hello,

Quick Emulator(Qemu) built with the Intel HDA controller emulation support isvulnerable to an infinite loop issue. It could occur while processing the DMAbuffer stream while doing data transfer in 'intel_hda_xfer'.

A privileged user inside guest could use this flaw to consume excessive CPUcycles on the host, resulting in DoS.


Upstream patch
--------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg04717.html

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

Current thread:

CVE request Qemu: audio: intel-hda: infinite loop in processing dma buffer stream P J P (Oct 24)
- Re: CVE request Qemu: audio: intel-hda: infinite loop in processing dma buffer stream cve-assign (Oct 24)