ssl/statem/statem_srvr.c:1558: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [`pkt->written`, `pkt->written` + 4]):unsigned64 by call to `WPACKET_memcpy`.
Showing all 12 steps of the trace


ssl/statem/statem_srvr.c:1553:10: Call
1551.       /* TODO(TLS1.3): Remove the DRAFT conditional before release */
1552.       version = SSL_IS_TLS13(s) ? TLS1_3_VERSION_DRAFT : s->version;
1553.       if (!WPACKET_put_bytes_u16(pkt, version)
                 ^
1554.                  /*
1555.                   * Random stuff. Filling of the server_random takes place in

ssl/packet.c:288:1: Parameter `pkt->buf->length`
  286.   }
  287.   
  288. > int WPACKET_put_bytes__(WPACKET *pkt, unsigned int val, size_t size)
  289.   {
  290.       unsigned char *data;

ssl/statem/statem_srvr.c:1558:17: Call
1556.                   * tls_process_client_hello()
1557.                   */
1558.               || !WPACKET_memcpy(pkt, s->s3->server_random, SSL3_RANDOM_SIZE)) {
                        ^
1559.           SSLerr(SSL_F_TLS_CONSTRUCT_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
1560.           goto err;

ssl/packet.c:329:1: Parameter `pkt->written`
  327.   }
  328.   
  329. > int WPACKET_memcpy(WPACKET *pkt, const void *src, size_t len)
  330.   {
  331.       unsigned char *dest;

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

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 + 4]):unsigned64 by call to `WPACKET_memcpy` 
      47.           return 0;
      48.   
      49.       if (pkt->staticbuf == NULL && (pkt->buf->length - pkt->written < len)) {
                                               ^
      50.           size_t newlen;
      51.           size_t reflen;

int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
{
    assert(pkt->subs != NULL && len != 0);
    if (pkt->subs == NULL || len == 0)
        return 0;
    if (pkt->maxsize - pkt->written < len)
        return 0;
    if (pkt->staticbuf == NULL && (pkt->buf->length - pkt->written < len)) {
        size_t newlen;
        size_t reflen;
        reflen = (len > pkt->buf->length) ? len : pkt->buf->length;
        if (reflen > SIZE_MAX / 2) {
            newlen = SIZE_MAX;
        } else {
            newlen = reflen * 2;
            if (newlen < DEFAULT_BUF_SIZE)
                newlen = DEFAULT_BUF_SIZE;
        }
        if (BUF_MEM_grow(pkt->buf, newlen) == 0)
            return 0;
    }
    *allocbytes = GETBUF(pkt) + pkt->curr;
    return 1;
}
['int tls_construct_server_hello(SSL *s, WPACKET *pkt)\n{\n    int compm, al = SSL_AD_INTERNAL_ERROR;\n    size_t sl, len;\n    int version;\n    version = SSL_IS_TLS13(s) ? TLS1_3_VERSION_DRAFT : s->version;\n    if (!WPACKET_put_bytes_u16(pkt, version)\n            || !WPACKET_memcpy(pkt, s->s3->server_random, SSL3_RANDOM_SIZE)) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_SERVER_HELLO, ERR_R_INTERNAL_ERROR);\n        goto err;\n    }\n    if (s->session->not_resumable ||\n        (!(s->ctx->session_cache_mode & SSL_SESS_CACHE_SERVER)\n         && !s->hit))\n        s->session->session_id_length = 0;\n    sl = s->session->session_id_length;\n    if (sl > sizeof(s->session->session_id)) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_SERVER_HELLO, ERR_R_INTERNAL_ERROR);\n        goto err;\n    }\n#ifdef OPENSSL_NO_COMP\n    compm = 0;\n#else\n    if (s->s3->tmp.new_compression == NULL)\n        compm = 0;\n    else\n        compm = s->s3->tmp.new_compression->id;\n#endif\n    if (!WPACKET_sub_memcpy_u8(pkt, s->session->session_id, sl)\n            || !s->method->put_cipher_by_char(s->s3->tmp.new_cipher, pkt, &len)\n            || !WPACKET_put_bytes_u8(pkt, compm)\n            || !ssl_prepare_serverhello_tlsext(s)\n            || !ssl_add_serverhello_tlsext(s, pkt, &al)) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_SERVER_HELLO, ERR_R_INTERNAL_ERROR);\n        goto err;\n    }\n    return 1;\n err:\n    ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);\n    return 0;\n}', 'int WPACKET_put_bytes__(WPACKET *pkt, unsigned int val, size_t size)\n{\n    unsigned char *data;\n    assert(size <= sizeof(unsigned int));\n    if (size > sizeof(unsigned int)\n            || !WPACKET_allocate_bytes(pkt, size, &data)\n            || !put_value(data, val, size))\n        return 0;\n    return 1;\n}', 'int WPACKET_memcpy(WPACKET *pkt, const void *src, size_t len)\n{\n    unsigned char *dest;\n    if (len == 0)\n        return 1;\n    if (!WPACKET_allocate_bytes(pkt, len, &dest))\n        return 0;\n    memcpy(dest, src, len);\n    return 1;\n}', 'int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)\n{\n    if (!WPACKET_reserve_bytes(pkt, len, allocbytes))\n        return 0;\n    pkt->written += len;\n    pkt->curr += len;\n    return 1;\n}', 'int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)\n{\n    assert(pkt->subs != NULL && len != 0);\n    if (pkt->subs == NULL || len == 0)\n        return 0;\n    if (pkt->maxsize - pkt->written < len)\n        return 0;\n    if (pkt->staticbuf == NULL && (pkt->buf->length - pkt->written < len)) {\n        size_t newlen;\n        size_t reflen;\n        reflen = (len > pkt->buf->length) ? len : pkt->buf->length;\n        if (reflen > SIZE_MAX / 2) {\n            newlen = SIZE_MAX;\n        } else {\n            newlen = reflen * 2;\n            if (newlen < DEFAULT_BUF_SIZE)\n                newlen = DEFAULT_BUF_SIZE;\n        }\n        if (BUF_MEM_grow(pkt->buf, newlen) == 0)\n            return 0;\n    }\n    *allocbytes = GETBUF(pkt) + pkt->curr;\n    return 1;\n}']