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(parent: 107d44a) | patch
KVM: ensure __gfn_to_pfn_memslot initializes *writable
authorPaolo Bonzini <pbonzini@redhat.com>
Tue, 23 Feb 2016 14:36:01 +0000 (15:36 +0100)
committerPaolo Bonzini <pbonzini@redhat.com>
Fri, 4 Mar 2016 11:35:20 +0000 (12:35 +0100)
commitb2740d3533a3f4aeb9553e872ce471ff73200a7f
tree6b24a81ae92244539c9ff8cc9f0078a5f6c88f0btree | snapshot
parent107d44a2c5bf08f221cb406b776310f12084e4decommit | diff
KVM: ensure __gfn_to_pfn_memslot initializes *writable

For the kvm_is_error_hva, ubsan complains if the uninitialized writable
is passed to __direct_map, even though the value itself is not used
(__direct_map goes to mmu_set_spte->set_spte->set_mmio_spte but never
looks at that argument).

Ensuring that __gfn_to_pfn_memslot initializes *writable is cheap and
avoids this kind of issue.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
virt/kvm/kvm_main.c diff | blob | history
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