ssl/statem/statem_srvr.c:2856: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [0, `pkt->written` + 33]):unsigned64 by call to `tls_construct_extensions`.
Showing all 14 steps of the trace


ssl/statem/statem_srvr.c:2848:18: Call
2846.               }
2847.           } else {
2848.               if (!WPACKET_put_bytes_u8(pkt, 0)) {
                         ^
2849.                   SSLfatal(s, SSL_AD_INTERNAL_ERROR,
2850.                            SSL_F_TLS_CONSTRUCT_CERTIFICATE_REQUEST,

crypto/packet.c:329:1: Parameter `pkt->buf->length`
  327.   }
  328.   
  329. > int WPACKET_put_bytes__(WPACKET *pkt, unsigned int val, size_t size)
  330.   {
  331.       unsigned char *data;

ssl/statem/statem_srvr.c:2856:14: Call
2854.           }
2855.   
2856.           if (!tls_construct_extensions(s, pkt,
                     ^
2857.                                         SSL_EXT_TLS1_3_CERTIFICATE_REQUEST, NULL,
2858.                                         0)) {

ssl/statem/extensions.c:796:1: Parameter `pkt->written`
  794.    * failure construction stops at the first extension to fail to construct.
  795.    */
  796. > int tls_construct_extensions(SSL *s, WPACKET *pkt, unsigned int context,
  797.                                X509 *x, size_t chainidx)
  798.   {

ssl/statem/extensions.c:803:10: Call
  801.       const EXTENSION_DEFINITION *thisexd;
  802.   
  803.       if (!WPACKET_start_sub_packet_u16(pkt)
                  ^
  804.                  /*
  805.                   * If extensions are of zero length then we don't even add the

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] - [0, pkt->written + 33]):unsigned64 by call to `tls_construct_extensions` 
        50.           return 0;
        51.   
        52.       if (pkt->buf != NULL && (pkt->buf->length - pkt->written < len)) {
                                           ^
        53.           size_t newlen;
        54.           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->buf != 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_certificate_request(SSL *s, WPACKET *pkt)\n{\n    if (SSL_IS_TLS13(s)) {\n        if (s->post_handshake_auth == SSL_PHA_REQUEST_PENDING) {\n            OPENSSL_free(s->pha_context);\n            s->pha_context_len = 32;\n            if ((s->pha_context = OPENSSL_malloc(s->pha_context_len)) == NULL\n                    || RAND_bytes(s->pha_context, s->pha_context_len) <= 0\n                    || !WPACKET_sub_memcpy_u8(pkt, s->pha_context, s->pha_context_len)) {\n                SSLfatal(s, SSL_AD_INTERNAL_ERROR,\n                         SSL_F_TLS_CONSTRUCT_CERTIFICATE_REQUEST,\n                         ERR_R_INTERNAL_ERROR);\n                return 0;\n            }\n            if (!tls13_restore_handshake_digest_for_pha(s)) {\n                return 0;\n            }\n        } else {\n            if (!WPACKET_put_bytes_u8(pkt, 0)) {\n                SSLfatal(s, SSL_AD_INTERNAL_ERROR,\n                         SSL_F_TLS_CONSTRUCT_CERTIFICATE_REQUEST,\n                         ERR_R_INTERNAL_ERROR);\n                return 0;\n            }\n        }\n        if (!tls_construct_extensions(s, pkt,\n                                      SSL_EXT_TLS1_3_CERTIFICATE_REQUEST, NULL,\n                                      0)) {\n            return 0;\n        }\n        goto done;\n    }\n    if (!WPACKET_start_sub_packet_u8(pkt)\n        || !ssl3_get_req_cert_type(s, pkt) || !WPACKET_close(pkt)) {\n        SSLfatal(s, SSL_AD_INTERNAL_ERROR,\n                 SSL_F_TLS_CONSTRUCT_CERTIFICATE_REQUEST, ERR_R_INTERNAL_ERROR);\n        return 0;\n    }\n    if (SSL_USE_SIGALGS(s)) {\n        const uint16_t *psigs;\n        size_t nl = tls12_get_psigalgs(s, 1, &psigs);\n        if (!WPACKET_start_sub_packet_u16(pkt)\n                || !WPACKET_set_flags(pkt, WPACKET_FLAGS_NON_ZERO_LENGTH)\n                || !tls12_copy_sigalgs(s, pkt, psigs, nl)\n                || !WPACKET_close(pkt)) {\n            SSLfatal(s, SSL_AD_INTERNAL_ERROR,\n                     SSL_F_TLS_CONSTRUCT_CERTIFICATE_REQUEST,\n                     ERR_R_INTERNAL_ERROR);\n            return 0;\n        }\n    }\n    if (!construct_ca_names(s, get_ca_names(s), pkt)) {\n        return 0;\n    }\n done:\n    s->certreqs_sent++;\n    s->s3.tmp.cert_request = 1;\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, NULL);\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    sub->packet_len = pkt->written;\n    if (!WPACKET_allocate_bytes(pkt, lenbytes, &lenchars))\n        return 0;\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->buf != 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}']