[Bug 205477] New: Useless address check in function __kvm_set_memory_region()

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

https://bugzilla.kernel.org/show_bug.cgi?id=205477

            Bug ID: 205477
           Summary: Useless address check in function
                    __kvm_set_memory_region()
           Product: Virtualization
           Version: unspecified
    Kernel Version: 5.2.0
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: low
          Priority: P1
         Component: kvm
          Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx
          Reporter: alexandr.sky@xxxxxxxxx
        Regression: No

In function __kvm_set_memory_region() at virt/kvm/kvm_main.c:950, the condition
is false in any case.

950          if (mem->guest_phys_addr + mem->memory_size <
mem->guest_phys_addr)
951                  goto out;

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