diff --git a/drivers/net/wireless/intel/iwlwifi/fw/regulatory.c b/drivers/net/wireless/intel/iwlwifi/fw/regulatory.c
index 958e71a3c958..5793c267daf7 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/regulatory.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/regulatory.c
@@ -241,6 +241,10 @@ static int iwl_sar_fill_table(struct iwl_fw_runtime *fwrt,
 	int profs[BIOS_SAR_NUM_CHAINS] = { prof_a, prof_b };
 	int i, j;
 
+	if (WARN_ON_ONCE(n_subbands >
+			 ARRAY_SIZE(fwrt->sar_profiles[0].chains[0].subbands)))
+		return -EINVAL;
+
 	for (i = 0; i < BIOS_SAR_NUM_CHAINS; i++) {
 		struct iwl_sar_profile *prof;