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Date: Thu, 7 Feb 2013 11:55:19 +0100
From: Petr Matousek <>
Cc: Kurt Seifried <>,
Subject: CVE request -- Linux kernel: x86/msr: /dev/cpu/*/msr local privilege

Access to /dev/cpu/*/msr was protected only using filesystem checks. A
local uid 0 (root) user with all capabilities dropped could use this
flaw to execute arbitrary code in kernel mode.

Upstream commit:;a=commitdiff;h=c903f0456bc69176912dee6dd25c6a66ee1aed00


Petr Matousek / Red Hat Security Response Team

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