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Date: Tue, 31 May 2011 15:53:25 +0800
From: Eugene Teo <>
CC: "Steven M. Christey" <>
Subject: CVE-2011-1763 kernel: xen: improper upper boundary check in get_free_port()

A flaw was found in the way Xen hypervisor checked for upper boundary
when getting a new event channel port. A privileged DomU user could use
this flaws to cause denial of service or, possibly, increase his privileges.

AFAIK, upstream xen is not affected.

fix: xen-unstable c/s 19365:

Thanks, Eugene

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