ssl/statem/extensions_clnt.c:436: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [`pkt->written`, `pkt->written` + 4]):unsigned64 by call to `WPACKET_sub_memcpy__`.
Showing all 14 steps of the trace


ssl/statem/extensions_clnt.c:435:17: Call
433.                   TLSEXT_TYPE_application_layer_protocol_negotiation)
434.                  /* Sub-packet ALPN extension */
435.               || !WPACKET_start_sub_packet_u16(pkt)
                       ^
436.               || !WPACKET_sub_memcpy_u16(pkt, s->ext.alpn, s->ext.alpn_len)
437.               || !WPACKET_close(pkt)) {

crypto/packet.c:292:1: Parameter `pkt->buf->length`
  290.   }
  291.   
  292. > int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)
  293.   {
  294.       WPACKET_SUB *sub;

ssl/statem/extensions_clnt.c:436:17: Call
434.                  /* Sub-packet ALPN extension */
435.               || !WPACKET_start_sub_packet_u16(pkt)
436.               || !WPACKET_sub_memcpy_u16(pkt, s->ext.alpn, s->ext.alpn_len)
                       ^
437.               || !WPACKET_close(pkt)) {
438.           SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CTOS_ALPN,

crypto/packet.c:399:1: Parameter `pkt->written`
  397.   }
  398.   
  399. > int WPACKET_sub_memcpy__(WPACKET *pkt, const void *src, size_t len,
  400.                            size_t lenbytes)
  401.   {

crypto/packet.c:402:10: Call
  400.                            size_t lenbytes)
  401.   {
  402.       if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)
                  ^
  403.               || !WPACKET_memcpy(pkt, src, len)
  404.               || !WPACKET_close(pkt))

crypto/packet.c:292:1: Parameter `pkt->written`
    290.   }
    291.   
    292. > int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)
    293.   {
    294.       WPACKET_SUB *sub;

crypto/packet.c:318:10: Call
    316.       sub->packet_len = pkt->written;
    317.   
    318.       if (!WPACKET_allocate_bytes(pkt, lenbytes, &lenchars))
                    ^
    319.           return 0;
    320.   

crypto/packet.c:16:1: Parameter `pkt->written`
      14.   #define DEFAULT_BUF_SIZE    256
      15.   
      16. > int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
      17.   {
      18.       if (!WPACKET_reserve_bytes(pkt, len, allocbytes))

crypto/packet.c:18:10: Call
      16.   int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
      17.   {
      18.       if (!WPACKET_reserve_bytes(pkt, len, allocbytes))
                     ^
      19.           return 0;
      20.   

crypto/packet.c:43:1: <LHS trace>
41.                           : NULL))
42.   
43. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
44.   {
45.       /* Internal API, so should not fail */

crypto/packet.c:43:1: Parameter `pkt->buf->length`
        41.                           : NULL))
        42.   
        43. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
        44.   {
        45.       /* Internal API, so should not fail */

crypto/packet.c:43:1: <RHS trace>
41.                           : NULL))
42.   
43. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
44.   {
45.       /* Internal API, so should not fail */

crypto/packet.c:43:1: Parameter `len`
        41.                           : NULL))
        42.   
        43. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
        44.   {
        45.       /* Internal API, so should not fail */

crypto/packet.c:52:30: Binary operation: ([0, +oo] - [pkt->written, pkt->written + 4]):unsigned64 by call to `WPACKET_sub_memcpy__` 
        50.           return 0;
        51.   
        52.       if (pkt->buf != NULL && (pkt->buf->length - pkt->written < len)) {
                                           ^
        53.           size_t newlen;
        54.           size_t reflen;
