KVM: VMX: Don't allow uninhibited access to EFER on i386

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vmx_set_msr() does not allow i386 guests to touch EFER, but they can still
do so through the default: label in the switch.  If they set EFER_LME, they
can oops the host.

Fix by having EFER access through the normal channel (which will check for
EFER_LME) even on i386.

Reported-and-tested-by: Benjamin Gilbert <bgilbert@cs.cmu.edu>
Cc: stable@kernel.org
Signed-off-by: Avi Kivity <avi@redhat.com>

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This commit is contained in:

Avi Kivity 2009-03-23 22:13:44 +02:00

parent bc7a8660df

commit 16175a796d

1 changed files with 1 additions and 1 deletions

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arch/x86/kvm/vmx.c

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