KVM: x86: Fix apic dangling pointer in vcpu

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The function kvm_create_lapic() attempts to allocate the apic structure
and sets a pointer to it in the virtual processor structure. However, if
get_zeroed_page() failed, the function frees the apic chunk, but forgets
to set the pointer in the vcpu to NULL. It's not a security issue since
there isn't a use of that pointer if kvm_create_lapic() returns error,
but it's more accurate that way.

Signed-off-by: Saar Amar <saaramar@microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Saar Amar 2019-05-06 11:29:16 +03:00 • committed by Paolo Bonzini

parent 4d763b168e

commit a251fb90ab

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arch/x86/kvm/lapic.c

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