ssl/statem/statem_srvr.c:2379: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [0, `pkt->written` + 68]):unsigned64 by call to `tls_construct_extensions`.
Showing all 14 steps of the trace


ssl/statem/statem_srvr.c:2373:17: Call
2371.       if (!WPACKET_sub_memcpy_u8(pkt, session_id, sl)
2372.               || !s->method->put_cipher_by_char(s->s3->tmp.new_cipher, pkt, &len)
2373.               || !WPACKET_put_bytes_u8(pkt, compm)) {
                        ^
2374.           SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_SERVER_HELLO,
2375.                    ERR_R_INTERNAL_ERROR);

ssl/packet.c:309:1: Parameter `pkt->buf->length`
  307.   }
  308.   
  309. > int WPACKET_put_bytes__(WPACKET *pkt, unsigned int val, size_t size)
  310.   {
  311.       unsigned char *data;

ssl/statem/statem_srvr.c:2379:10: Call
2377.       }
2378.   
2379.       if (!tls_construct_extensions(s, pkt,
                 ^
2380.                                     s->hello_retry_request == SSL_HRR_PENDING
2381.                                         ? SSL_EXT_TLS1_3_HELLO_RETRY_REQUEST

ssl/statem/extensions.c:790:1: Parameter `pkt->written`
  788.    * failure construction stops at the first extension to fail to construct.
  789.    */
  790. > int tls_construct_extensions(SSL *s, WPACKET *pkt, unsigned int context,
  791.                                X509 *x, size_t chainidx)
  792.   {

ssl/statem/extensions.c:797:10: Call
  795.       const EXTENSION_DEFINITION *thisexd;
  796.   
  797.       if (!WPACKET_start_sub_packet_u16(pkt)
                  ^
  798.                  /*
  799.                   * If extensions are of zero length then we don't even add the

ssl/packet.c:272:1: Parameter `pkt->written`
    270.   }
    271.   
    272. > int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)
    273.   {
    274.       WPACKET_SUB *sub;

ssl/packet.c:296:10: Call
    294.       }
    295.   
    296.       if (!WPACKET_allocate_bytes(pkt, lenbytes, &lenchars))
                    ^
    297.           return 0;
    298.       /* Convert to an offset in case the underlying BUF_MEM gets realloc'd */

ssl/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))

ssl/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.   

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

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

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

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

ssl/packet.c:49:36: Binary operation: ([0, +oo] - [0, pkt->written + 68]):unsigned64 by call to `tls_construct_extensions` 
        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)
{
    if (!ossl_assert(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;
    }
    if (allocbytes != NULL)
        *allocbytes = WPACKET_get_curr(pkt);
    return 1;
}
['int tls_construct_server_hello(SSL *s, WPACKET *pkt)\n{\n    int compm;\n    size_t sl, len;\n    int version;\n    unsigned char *session_id;\n    int usetls13 = SSL_IS_TLS13(s) || s->hello_retry_request == SSL_HRR_PENDING;\n    version = usetls13 ? TLS1_2_VERSION : s->version;\n    if (!WPACKET_put_bytes_u16(pkt, version)\n            || !WPACKET_memcpy(pkt,\n                               s->hello_retry_request == SSL_HRR_PENDING\n                                   ? hrrrandom : s->s3->server_random,\n                               SSL3_RANDOM_SIZE)) {\n        SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_SERVER_HELLO,\n                 ERR_R_INTERNAL_ERROR);\n        return 0;\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    if (usetls13) {\n        sl = s->tmp_session_id_len;\n        session_id = s->tmp_session_id;\n    } else {\n        sl = s->session->session_id_length;\n        session_id = s->session->session_id;\n    }\n    if (sl > sizeof(s->session->session_id)) {\n        SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_SERVER_HELLO,\n                 ERR_R_INTERNAL_ERROR);\n        return 0;\n    }\n#ifdef OPENSSL_NO_COMP\n    compm = 0;\n#else\n    if (usetls13 || 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, 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        SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_SERVER_HELLO,\n                 ERR_R_INTERNAL_ERROR);\n        return 0;\n    }\n    if (!tls_construct_extensions(s, pkt,\n                                  s->hello_retry_request == SSL_HRR_PENDING\n                                      ? SSL_EXT_TLS1_3_HELLO_RETRY_REQUEST\n                                      : (SSL_IS_TLS13(s)\n                                          ? SSL_EXT_TLS1_3_SERVER_HELLO\n                                          : SSL_EXT_TLS1_2_SERVER_HELLO),\n                                  NULL, 0)) {\n        return 0;\n    }\n    if (s->hello_retry_request == SSL_HRR_PENDING) {\n        SSL_SESSION_free(s->session);\n        s->session = NULL;\n        s->hit = 0;\n        if (!create_synthetic_message_hash(s, NULL, 0, NULL, 0)) {\n            return 0;\n        }\n    } else if (!(s->verify_mode & SSL_VERIFY_PEER)\n                && !ssl3_digest_cached_records(s, 0)) {\n         ;\n        return 0;\n    }\n    return 1;\n}', 'int WPACKET_put_bytes__(WPACKET *pkt, unsigned int val, size_t size)\n{\n    unsigned char *data;\n    if (!ossl_assert(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 tls_construct_extensions(SSL *s, WPACKET *pkt, unsigned int context,\n                             X509 *x, size_t chainidx)\n{\n    size_t i;\n    int min_version, max_version = 0, reason;\n    const EXTENSION_DEFINITION *thisexd;\n    if (!WPACKET_start_sub_packet_u16(pkt)\n            || ((context &\n                 (SSL_EXT_CLIENT_HELLO | SSL_EXT_TLS1_2_SERVER_HELLO)) != 0\n                && !WPACKET_set_flags(pkt,\n                                     WPACKET_FLAGS_ABANDON_ON_ZERO_LENGTH))) {\n        SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_EXTENSIONS,\n                 ERR_R_INTERNAL_ERROR);\n        return 0;\n    }\n    if ((context & SSL_EXT_CLIENT_HELLO) != 0) {\n        reason = ssl_get_min_max_version(s, &min_version, &max_version);\n        if (reason != 0) {\n            SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_EXTENSIONS,\n                     reason);\n            return 0;\n        }\n    }\n    if ((context & SSL_EXT_CLIENT_HELLO) != 0) {\n        custom_ext_init(&s->cert->custext);\n    }\n    if (!custom_ext_add(s, context, pkt, x, chainidx, max_version)) {\n        return 0;\n    }\n    for (i = 0, thisexd = ext_defs; i < OSSL_NELEM(ext_defs); i++, thisexd++) {\n        EXT_RETURN (*construct)(SSL *s, WPACKET *pkt, unsigned int context,\n                                X509 *x, size_t chainidx);\n        EXT_RETURN ret;\n        if (!should_add_extension(s, thisexd->context, context, max_version))\n            continue;\n        construct = s->server ? thisexd->construct_stoc\n                              : thisexd->construct_ctos;\n        if (construct == NULL)\n            continue;\n        ret = construct(s, pkt, context, x, chainidx);\n        if (ret == EXT_RETURN_FAIL) {\n            return 0;\n        }\n        if (ret == EXT_RETURN_SENT\n                && (context & (SSL_EXT_CLIENT_HELLO\n                               | SSL_EXT_TLS1_3_CERTIFICATE_REQUEST\n                               | SSL_EXT_TLS1_3_NEW_SESSION_TICKET)) != 0)\n            s->ext.extflags[i] |= SSL_EXT_FLAG_SENT;\n    }\n    if (!WPACKET_close(pkt)) {\n        SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_EXTENSIONS,\n                 ERR_R_INTERNAL_ERROR);\n        return 0;\n    }\n    return 1;\n}', 'int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)\n{\n    WPACKET_SUB *sub;\n    unsigned char *lenchars;\n    if (!ossl_assert(pkt->subs != NULL))\n        return 0;\n    if ((sub = OPENSSL_zalloc(sizeof(*sub))) == NULL) {\n        SSLerr(SSL_F_WPACKET_START_SUB_PACKET_LEN__, ERR_R_MALLOC_FAILURE);\n        return 0;\n    }\n    sub->parent = pkt->subs;\n    pkt->subs = sub;\n    sub->pwritten = pkt->written + lenbytes;\n    sub->lenbytes = lenbytes;\n    if (lenbytes == 0) {\n        sub->packet_len = 0;\n        return 1;\n    }\n    if (!WPACKET_allocate_bytes(pkt, lenbytes, &lenchars))\n        return 0;\n    sub->packet_len = lenchars - GETBUF(pkt);\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    if (!ossl_assert(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    if (allocbytes != NULL)\n        *allocbytes = WPACKET_get_curr(pkt);\n    return 1;\n}']