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NimBLE: host_rcv_pkt event buf size check.

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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 committed by bot
parent 28d2b7a9b3
commit 3c0f06adb2
1 changed files with 7 additions and 0 deletions
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7
components/bt/host/nimble/esp-hci/src/esp_nimble_hci.c
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@ -342,6 +342,13 @@ 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);
}