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Description: kvm: nVMX: L2 guest could access hardware(L0) CR8 register
References:
 https://www.spinics.net/lists/kvm/msg155414.html
Notes:
 bwh> Appears to have been introduced in 3.1 by commit fe3ef05c7572
 bwh> "KVM: nVMX: Prepare vmcs02 from vmcs01 and vmcs12".
Bugs:
 https://bugzilla.redhat.com/show_bug.cgi?id=1491224
upstream: released (4.14-rc1) [51aa68e7d57e3217192d88ce90fd5b8ef29ec94f]
4.9-upstream-stable: released (4.9.53) [86ef97b2dfd504fbc65f6b244a422db0c1b15797]
3.16-upstream-stable: released (3.16.49) [423a7a81efb8da25dbbcfe7a33bd8bfdce34150b]
3.2-upstream-stable: released (3.2.94) [7999f7fc5b2ca4c0b2a96b7fb3dfa4e30274da27]
sid: released (4.12.13-1) [bugfix/x86/kvm-nvmx-don-t-allow-l2-to-access-the-hardware-cr8.patch]
4.9-stretch-security: released (4.9.30-2+deb9u4) [bugfix/x86/kvm-nvmx-don-t-allow-l2-to-access-the-hardware-cr8.patch]
3.16-jessie-security: released (3.16.43-2+deb8u4) [bugfix/x86/kvm-nvmx-don-t-allow-l2-to-access-the-hardware-cr8.patch]
3.2-wheezy-security: released (3.2.93-1) [bugfix/x86/kvm-nvmx-don-t-allow-l2-to-access-the-hardware-cr8.patch]

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