[PATCH 0/2] KVM: nVMX: msr bitmaps fixes

From	Radim Krčmář <rkrcmar@redhat.com>
Newsgroups	linux.kernel
Subject	[PATCH 0/2] KVM: nVMX: msr bitmaps fixes
Date	2016-08-08 20:20 +0200
Message-ID	<s3Xjz-4So-7@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Show all headers | View raw

Jim found several bugs that allowed L2 to read L0's x2APIC MSRs and write to
TPR, EOI, and SELF_IPI, in the worst case.

The fix is split into two patches as possible causes were introduced by
two different commits.

I have not Cc'd stable as the patches are quite long and nVMX is not
considered to be ready for production, yet.


Radim Krčmář (2):
  KVM: nVMX: fix msr bitmaps to prevent L2 from accessing L0 x2APIC
  KVM: nVMX: postpone VMCS changes on MSR_IA32_APICBASE write

 arch/x86/kvm/vmx.c | 120 +++++++++++++++++++++++++----------------------------
 1 file changed, 57 insertions(+), 63 deletions(-)

-- 
2.9.2

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

[PATCH 0/2] KVM: nVMX: msr bitmaps fixes Radim Krčmář <rkrcmar@redhat.com> - 2016-08-08 20:20 +0200

csiph-web