KVM: Fix KVM_GET_MSR_INDEX_LIST

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So far, KVM copied the emulated_msrs (only MSR_IA32_MISC_ENABLE) to a
wrong address in user space due to broken pointer arithmetic. This
caused subtle corruption up there (missing MSR_IA32_MISC_ENABLE had
probably no practical relevance). Moreover, the size check for the
user-provided kvm_msr_list forgot about emulated MSRs.

Cc: stable@kernel.org
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

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Jan Kiszka 2009-07-02 21:45:47 +02:00 • committed by Avi Kivity

parent 90bc1a658a

commit e125e7b694

1 changed files with 2 additions and 3 deletions

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arch/x86/kvm/x86.c

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