tree 0ed3934fb7b2b1f67394bbf15cf747be25949205
parent 4d763b168e9c5c366b05812c7bba7662e5ea3669
author Saar Amar <saaramar@microsoft.com> 1557131356 +0300
committer Paolo Bonzini <pbonzini@redhat.com> 1561033397 +0200

KVM: x86: Fix apic dangling pointer in vcpu

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>