Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4cb8b116 authored by Wei Yang's avatar Wei Yang Committed by Paolo Bonzini
Browse files

kvm: x86: offset is ensure to be in range 



In function apic_mmio_write(), the offset has been checked in:

   * apic_mmio_in_range()
   * offset & 0xf

These two ensures offset is in range [0x010, 0xff0].

Signed-off-by: default avatarWei Yang <richardw.yang@linux.intel.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent ee171d2f

arch/x86/kvm/lapic.c

+1 −1
Original line number Diff line number Diff line
@@ -2023,7 +2023,7 @@ static int apic_mmio_write(struct kvm_vcpu *vcpu, struct kvm_io_device *this, 
		apic_debug("%s: offset 0x%x with length 0x%x, and value is "

			   "0x%x\n", __func__, offset, len, val);



	kvm_lapic_reg_write(apic, offset & 0xff0, val);

	kvm_lapic_reg_write(apic, offset, val);



	return 0;

}