diff --git a/components/bt/common/hci_log/bt_hci_log.c b/components/bt/common/hci_log/bt_hci_log.c
index 2f664e2062..4ce636999b 100644
--- a/components/bt/common/hci_log/bt_hci_log.c
+++ b/components/bt/common/hci_log/bt_hci_log.c
@@ -220,6 +220,10 @@ esp_err_t IRAM_ATTR bt_hci_log_record_data(bt_hci_log_t *p_hci_log_ctl, char *st
     ts = esp_timer_get_time();
 
     temp_buf = (uint8_t *)malloc(data_len + 8);
+    if (!temp_buf) {
+        return ESP_ERR_NO_MEM;
+    }
+
     memset(temp_buf, 0x0, data_len + 8);
 
     memcpy(temp_buf, &ts, 8);
diff --git a/components/bt/host/nimble/nimble b/components/bt/host/nimble/nimble
index 07192bf01b..6b9c4d1f5b 160000
--- a/components/bt/host/nimble/nimble
+++ b/components/bt/host/nimble/nimble
@@ -1 +1 @@
-Subproject commit 07192bf01b09c44a185e8a6e99857f8d57ca4f14
+Subproject commit 6b9c4d1f5b73369b874dc7e62f1831b5f0809586