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NimBLE: host_rcv_pkt event buf size check. 

Check if the size of HCI event buffer is greater than the received HCI
packet. If not then abort with the error message.
This commit is contained in:
Chinmay Chhajed 2020-08-20 14:42:46 +05:30
parent 471d79edae
commit 1aa40de934
1 changed files with 7 additions and 0 deletions
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7
components/nimble/esp-hci/src/esp_nimble_hci.c
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@ -341,6 +341,13 @@ static int host_rcv_pkt(uint8_t *data, uint16_t len)
totlen = BLE_HCI_EVENT_HDR_LEN + data[2];
assert(totlen <= UINT8_MAX + BLE_HCI_EVENT_HDR_LEN);
if (totlen > MYNEWT_VAL(BLE_HCI_EVT_BUF_SIZE)) {
ESP_LOGE(TAG, "Received HCI data length at host (%d) exceeds maximum configured HCI event buffer size (%d).",
totlen, MYNEWT_VAL(BLE_HCI_EVT_BUF_SIZE));
ble_hs_sched_reset(BLE_HS_ECONTROLLER);
return 0;
}
if (data[1] == BLE_HCI_EVCODE_HW_ERROR) {
assert(0);
}