diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 499ee7b41771515ece306b03c054620d0085c6a2..59729aa8cd821a5e3b6e148f4f5b02c4d493824e 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -1126,7 +1126,7 @@ static int ath10k_core_create_board_name(struct ath10k *ar, char *name,
 					 size_t name_len)
 {
 	/* strlen(',variant=') + strlen(ar->id.bdf_ext) */
-	char variant[9 + ATH10K_SMBIOS_BDF_EXT_STR_LENGTH];
+	char variant[9 + ATH10K_SMBIOS_BDF_EXT_STR_LENGTH] = { 0 };
 
 	if (ar->id.bmi_ids_valid) {
 		scnprintf(name, name_len,