diff --git a/drivers/hv/mshv_synic.c b/drivers/hv/mshv_synic.c
index e2288a726fec..fe591d159766 100644
--- a/drivers/hv/mshv_synic.c
+++ b/drivers/hv/mshv_synic.c
@@ -383,6 +383,11 @@ mshv_intercept_isr(struct hv_message *msg)
 	 */
 	vp_index =
 	       ((struct hv_opaque_intercept_message *)msg->u.payload)->vp_index;
+	/* This shouldn't happen, but just in case. */
+	if (unlikely(vp_index >= MSHV_MAX_VPS)) {
+		pr_debug("VP index %u out of bounds\n", vp_index);
+		goto unlock_out;
+	}
 	vp = partition->pt_vp_array[vp_index];
 	if (unlikely(!vp)) {
 		pr_debug("failed to find VP %u\n", vp_index);