KVM: arm64: vgic-its: Fix handling of indirect tables



The current code will fail on valid indirect tables, and happily
use the ones that are pointing out of the guest RAM. Funny what a
small "!" can do for you...

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

parent d97594e6

virt/kvm/arm/vgic/vgic-its.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -702,7 +702,7 @@ static bool vgic_its_check_device_id(struct kvm kvm, struct vgic_its its,
		return false;

		/* Each 1st level entry is represented by a 64-bit value. */
		if (!kvm_read_guest(kvm,
		if (kvm_read_guest(kvm,
		BASER_ADDRESS(r) + index * sizeof(indirect_ptr),
		&indirect_ptr, sizeof(indirect_ptr)))
		return false;