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mesh: fix buffer overrun on network pdu setup

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This commit is contained in:
Matthias Ringwald 2020-08-04 20:50:42 +02:00
parent 8eed85101f
commit 7727b2d69e
1 changed files with 2 additions and 1 deletions
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3
src/mesh/mesh_network.c
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@ -1129,11 +1129,12 @@ void mesh_network_setup_pdu(mesh_network_pdu_t * network_pdu, uint16_t netkey_in
network_pdu->len += 2;
big_endian_store_16(network_pdu->data, network_pdu->len, dest);
network_pdu->len += 2;
btstack_assert((network_pdu->len + transport_pdu_len) <= MESH_NETWORK_PAYLOAD_MAX);
(void)memcpy(&network_pdu->data[network_pdu->len], transport_pdu_data,
transport_pdu_len);
network_pdu->len += transport_pdu_len;
// zero rest of packet
memset(&network_pdu->data[network_pdu->len], 0, MESH_NETWORK_PAYLOAD_MAX - transport_pdu_len);
memset(&network_pdu->data[network_pdu->len], 0, MESH_NETWORK_PAYLOAD_MAX - network_pdu->len);
}
/*