diff --git a/components/bt/controller/esp32c2/bt.c b/components/bt/controller/esp32c2/bt.c
index 1ed40d5140..e1d6592625 100644
--- a/components/bt/controller/esp32c2/bt.c
+++ b/components/bt/controller/esp32c2/bt.c
@@ -320,7 +320,7 @@ void esp_vhci_host_send_packet(uint8_t *data, uint16_t len)
     if (*(data) == DATA_TYPE_ACL) {
         struct os_mbuf *om = os_msys_get_pkthdr(len, ACL_DATA_MBUF_LEADINGSPCAE);
         assert(om);
-        os_mbuf_append(om, &data[1], len - 1);
+        assert(os_mbuf_append(om, &data[1], len - 1) == 0);
         ble_hci_trans_hs_acl_tx(om);
     }
 
diff --git a/components/bt/controller/esp32c6/bt.c b/components/bt/controller/esp32c6/bt.c
index 2a858c169b..375a883085 100644
--- a/components/bt/controller/esp32c6/bt.c
+++ b/components/bt/controller/esp32c6/bt.c
@@ -308,7 +308,7 @@ void esp_vhci_host_send_packet(uint8_t *data, uint16_t len)
     if (*(data) == DATA_TYPE_ACL) {
         struct os_mbuf *om = os_msys_get_pkthdr(len, ACL_DATA_MBUF_LEADINGSPCAE);
         assert(om);
-        os_mbuf_append(om, &data[1], len - 1);
+        assert(os_mbuf_append(om, &data[1], len - 1) == 0);
         ble_hci_trans_hs_acl_tx(om);
     }
 }
diff --git a/components/bt/controller/esp32h2/bt.c b/components/bt/controller/esp32h2/bt.c
index 30e1c77f51..7d824d83bd 100644
--- a/components/bt/controller/esp32h2/bt.c
+++ b/components/bt/controller/esp32h2/bt.c
@@ -308,7 +308,7 @@ void esp_vhci_host_send_packet(uint8_t *data, uint16_t len)
     if (*(data) == DATA_TYPE_ACL) {
         struct os_mbuf *om = os_msys_get_pkthdr(len, ACL_DATA_MBUF_LEADINGSPCAE);
         assert(om);
-        os_mbuf_append(om, &data[1], len - 1);
+        assert(os_mbuf_append(om, &data[1], len - 1) == 0);
         ble_hci_trans_hs_acl_tx(om);
     }
 }
diff --git a/components/bt/controller/esp32h4/bt.c b/components/bt/controller/esp32h4/bt.c
index 665968fb28..568f1ebb0d 100644
--- a/components/bt/controller/esp32h4/bt.c
+++ b/components/bt/controller/esp32h4/bt.c
@@ -324,7 +324,7 @@ void esp_vhci_host_send_packet(uint8_t *data, uint16_t len)
     if (*(data) == DATA_TYPE_ACL) {
         struct os_mbuf *om = os_msys_get_pkthdr(len, ACL_DATA_MBUF_LEADINGSPCAE);
         assert(om);
-        os_mbuf_append(om, &data[1], len - 1);
+        assert(os_mbuf_append(om, &data[1], len - 1) == 0);
         ble_hci_trans_hs_acl_tx(om);
     }