ssl/statem/statem_srvr.c:3648: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [`pkt->written`, `pkt->written` + 4]):unsigned64 by call to `tls_construct_extensions`.
Showing all 14 steps of the trace


ssl/statem/statem_srvr.c:3647:10: Call
3645.        * (should be s->version)
3646.        */
3647.       if (!WPACKET_put_bytes_u16(pkt, TLS1_3_VERSION_DRAFT)
                 ^
3648.               || !tls_construct_extensions(s, pkt, EXT_TLS1_3_HELLO_RETRY_REQUEST,
3649.                                            NULL, 0, &al)) {

ssl/packet.c:312:1: Parameter `pkt->buf->length`
  310.   }
  311.   
  312. > int WPACKET_put_bytes__(WPACKET *pkt, unsigned int val, size_t size)
  313.   {
  314.       unsigned char *data;

ssl/statem/statem_srvr.c:3648:17: Call
3646.        */
3647.       if (!WPACKET_put_bytes_u16(pkt, TLS1_3_VERSION_DRAFT)
3648.               || !tls_construct_extensions(s, pkt, EXT_TLS1_3_HELLO_RETRY_REQUEST,
                        ^
3649.                                            NULL, 0, &al)) {
3650.           ssl3_send_alert(s, SSL3_AL_FATAL, al);

ssl/statem/extensions.c:583:1: Parameter `pkt->written`
  581.    * failure construction stops at the first extension to fail to construct.
  582.    */
  583. > int tls_construct_extensions(SSL *s, WPACKET *pkt, unsigned int context,
  584.                                X509 *x, size_t chainidx, int *al)
  585.   {

ssl/statem/extensions.c:596:10: Call
  594.       tmpal = SSL_AD_INTERNAL_ERROR;
  595.   
  596.       if (!WPACKET_start_sub_packet_u16(pkt)
                  ^
  597.                  /*
  598.                   * If extensions are of zero length then we don't even add the

ssl/packet.c:275:1: Parameter `pkt->written`
    273.   }
    274.   
    275. > int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)
    276.   {
    277.       WPACKET_SUB *sub;

ssl/packet.c:299:10: Call
    297.       }
    298.   
    299.       if (!WPACKET_allocate_bytes(pkt, lenbytes, &lenchars))
                    ^
    300.           return 0;
    301.       /* Convert to an offset in case the underlying BUF_MEM gets realloc'd */

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 `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)
{
    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;
    }
    if (allocbytes != NULL)
        *allocbytes = WPACKET_get_curr(pkt);
    return 1;
}
['static int tls_construct_hello_retry_request(SSL *s, WPACKET *pkt)\n{\n    int al;\n    if (!WPACKET_put_bytes_u16(pkt, TLS1_3_VERSION_DRAFT)\n            || !tls_construct_extensions(s, pkt, EXT_TLS1_3_HELLO_RETRY_REQUEST,\n                                         NULL, 0, &al)) {\n        ssl3_send_alert(s, SSL3_AL_FATAL, al);\n        SSLerr(SSL_F_TLS_CONSTRUCT_HELLO_RETRY_REQUEST, ERR_R_INTERNAL_ERROR);\n        ssl3_send_alert(s, SSL3_AL_FATAL, al);\n        return 0;\n    }\n    SSL_SESSION_free(s->session);\n    s->session = NULL;\n    s->hit = 0;\n    return 1;\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 tls_construct_extensions(SSL *s, WPACKET *pkt, unsigned int context,\n                             X509 *x, size_t chainidx, int *al)\n{\n    size_t i;\n    int addcustom = 0, min_version, max_version = 0, reason, tmpal;\n    const EXTENSION_DEFINITION *thisexd;\n    tmpal = SSL_AD_INTERNAL_ERROR;\n    if (!WPACKET_start_sub_packet_u16(pkt)\n            || ((context & (EXT_CLIENT_HELLO | EXT_TLS1_2_SERVER_HELLO)) != 0\n               && s->version == SSL3_VERSION\n               && !WPACKET_set_flags(pkt,\n                                     WPACKET_FLAGS_ABANDON_ON_ZERO_LENGTH))) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_EXTENSIONS, ERR_R_INTERNAL_ERROR);\n        goto err;\n    }\n    if ((context & EXT_CLIENT_HELLO) != 0) {\n        reason = ssl_get_client_min_max_version(s, &min_version, &max_version);\n        if (reason != 0) {\n            SSLerr(SSL_F_TLS_CONSTRUCT_EXTENSIONS, reason);\n            goto err;\n        }\n    }\n    if ((context & EXT_CLIENT_HELLO) != 0) {\n        custom_ext_init(&s->cert->cli_ext);\n        addcustom = 1;\n    } else if ((context & EXT_TLS1_2_SERVER_HELLO) != 0) {\n        addcustom = 1;\n    }\n    if (addcustom && !custom_ext_add(s, s->server, pkt, &tmpal)) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_EXTENSIONS, ERR_R_INTERNAL_ERROR);\n        goto err;\n    }\n    for (i = 0, thisexd = ext_defs; i < OSSL_NELEM(ext_defs); i++, thisexd++) {\n        int (*construct)(SSL *s, WPACKET *pkt, unsigned int context, X509 *x,\n                         size_t chainidx, int *al);\n        if ((thisexd->context & context) == 0)\n            continue;\n        construct = s->server ? thisexd->construct_stoc\n                              : thisexd->construct_ctos;\n        if ((SSL_IS_DTLS(s)\n                    && (thisexd->context & EXT_TLS_IMPLEMENTATION_ONLY)\n                       != 0)\n                || (s->version == SSL3_VERSION\n                        && (thisexd->context & EXT_SSL3_ALLOWED) == 0)\n                || (SSL_IS_TLS13(s)\n                    && (thisexd->context & EXT_TLS1_2_AND_BELOW_ONLY)\n                       != 0)\n                || (!SSL_IS_TLS13(s)\n                    && (thisexd->context & EXT_TLS1_3_ONLY) != 0\n                    && (context & EXT_CLIENT_HELLO) == 0)\n                || ((thisexd->context & EXT_TLS1_3_ONLY) != 0\n                    && (context & EXT_CLIENT_HELLO) != 0\n                    && (SSL_IS_DTLS(s) || max_version < TLS1_3_VERSION))\n                || construct == NULL)\n            continue;\n        if (!construct(s, pkt, context, x, chainidx, &tmpal))\n            goto err;\n    }\n    if (!WPACKET_close(pkt)) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_EXTENSIONS, ERR_R_INTERNAL_ERROR);\n        goto err;\n    }\n    return 1;\n err:\n    *al = tmpal;\n    return 0;\n}', 'int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)\n{\n    WPACKET_SUB *sub;\n    unsigned char *lenchars;\n    assert(pkt->subs != NULL);\n    if (pkt->subs == NULL)\n        return 0;\n    sub = OPENSSL_zalloc(sizeof(*sub));\n    if (sub == NULL)\n        return 0;\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    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    if (allocbytes != NULL)\n        *allocbytes = WPACKET_get_curr(pkt);\n    return 1;\n}']