diff --git a/sound/hda/codecs/hdmi/hdmi.c b/sound/hda/codecs/hdmi/hdmi.c
index a8aac0b36c73..355fd3e73183 100644
--- a/sound/hda/codecs/hdmi/hdmi.c
+++ b/sound/hda/codecs/hdmi/hdmi.c
@@ -983,7 +983,8 @@ static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx)
 	snd_hda_set_dev_select(codec, pin_nid, dev_id);
 
 	if (spec->intel_hsw_fixup) {
-		conns = spec->num_cvts;
+		/* spec->cvt_nids[] only has ARRAY_SIZE(spec->cvt_nids) slots */
+		conns = min_t(int, spec->num_cvts, ARRAY_SIZE(spec->cvt_nids));
 		memcpy(per_pin->mux_nids, spec->cvt_nids,
 		       sizeof(hda_nid_t) * conns);
 	} else {