ssl/statem/extensions_srvr.c:802: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [`pkt->written`, `pkt->written` + 6]):unsigned64 by call to `WPACKET_sub_memcpy__`.
Showing all 16 steps of the trace


ssl/statem/extensions_srvr.c:786:1: Parameter `pkt->written`
784.   
785.   #ifndef OPENSSL_NO_NEXTPROTONEG
786. > int tls_construct_stoc_next_proto_neg(SSL *s, WPACKET *pkt, X509 *x,
787.                                         size_t chainidx, int *al)
788.   {

ssl/statem/extensions_srvr.c:801:14: Call
799.                                           s->ctx->ext.npn_advertised_cb_arg);
800.       if (ret == SSL_TLSEXT_ERR_OK) {
801.           if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_next_proto_neg)
                    ^
802.                   || !WPACKET_sub_memcpy_u16(pkt, npa, npalen)) {
803.               SSLerr(SSL_F_TLS_CONSTRUCT_STOC_NEXT_PROTO_NEG,

ssl/packet.c:289:1: Parameter `pkt->written`
  287.   }
  288.   
  289. > int WPACKET_put_bytes__(WPACKET *pkt, unsigned int val, size_t size)
  290.   {
  291.       unsigned char *data;

ssl/statem/extensions_srvr.c:802:21: Call
800.       if (ret == SSL_TLSEXT_ERR_OK) {
801.           if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_next_proto_neg)
802.                   || !WPACKET_sub_memcpy_u16(pkt, npa, npalen)) {
                           ^
803.               SSLerr(SSL_F_TLS_CONSTRUCT_STOC_NEXT_PROTO_NEG,
804.                      ERR_R_INTERNAL_ERROR);

ssl/packet.c:348:10: Call
  346.                            size_t lenbytes)
  347.   {
  348.       if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)
                  ^
  349.               || !WPACKET_memcpy(pkt, src, len)
  350.               || !WPACKET_close(pkt))

ssl/packet.c:252:1: Parameter `pkt->buf->length`
    250.   }
    251.   
    252. > int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)
    253.   {
    254.       WPACKET_SUB *sub;

ssl/packet.c:349:17: Call
  347.   {
  348.       if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)
  349.               || !WPACKET_memcpy(pkt, src, len)
                         ^
  350.               || !WPACKET_close(pkt))
  351.           return 0;

ssl/packet.c:330:1: Parameter `pkt->written`
    328.   }
    329.   
    330. > int WPACKET_memcpy(WPACKET *pkt, const void *src, size_t len)
    331.   {
    332.       unsigned char *dest;

ssl/packet.c:337:10: Call
    335.           return 1;
    336.   
    337.       if (!WPACKET_allocate_bytes(pkt, len, &dest))
                    ^
    338.           return 0;
    339.   

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

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

ssl/packet.c:39:1: <LHS trace>
37.                        ? (p)->staticbuf : (unsigned char *)(p)->buf->data)
38.   
39. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
40.   {
41.       /* Internal API, so should not fail */

ssl/packet.c:39:1: Parameter `pkt->buf->length`
        37.                        ? (p)->staticbuf : (unsigned char *)(p)->buf->data)
        38.   
        39. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
        40.   {
        41.       /* Internal API, so should not fail */

ssl/packet.c:39:1: <RHS trace>
37.                        ? (p)->staticbuf : (unsigned char *)(p)->buf->data)
38.   
39. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
40.   {
41.       /* Internal API, so should not fail */

ssl/packet.c:39:1: Parameter `len`
        37.                        ? (p)->staticbuf : (unsigned char *)(p)->buf->data)
        38.   
        39. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
        40.   {
        41.       /* Internal API, so should not fail */

ssl/packet.c:49:36: Binary operation: ([0, +oo] - [pkt->written, pkt->written + 6]):unsigned64 by call to `WPACKET_sub_memcpy__` 
        47.           return 0;
        48.   
        49.       if (pkt->staticbuf == NULL && (pkt->buf->length - pkt->written < len)) {
                                                 ^
        50.           size_t newlen;
        51.           size_t reflen;
