From: Avi Kivity <[email protected]>

If userspace specifies a memory slot that is larger than 8 petabytes, it
could overflow the largepages variable.

Signed-off-by: Avi Kivity <[email protected]>

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index b9ca73c..669eb4a 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1087,8 +1087,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
        int r;
        gfn_t base_gfn;
        unsigned long npages, ugfn;
-       int largepages;
-       unsigned long i;
+       unsigned long largepages, i;
        struct kvm_memory_slot *memslot;
        struct kvm_memory_slot old, new;
 
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