Date: Thu, 29 Oct 2009 11:18:01 +0800 From: Eugene Teo <eugene@...hat.com> To: oss-security@...ts.openwall.com CC: "Steven M. Christey" <coley@...us.mitre.org> Subject: CVE request: kvm: check cpl before emulating debug register access Quote from the upstream commit: "Debug registers may only be accessed from cpl 0. Unfortunately, vmx will code to emulate the instruction even though it was issued from guest userspace, possibly leading to an unexpected trap later." Introduced in v2.6.30-rc1; Fixed in v2.6.32-rc1. http://bugzilla.redhat.com/531660 http://git.kernel.org/linus/0a79b009525b160081d75cef5dbf45817956acf2 Thanks, Eugene -- Eugene Teo / Red Hat Security Response Team
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