ssl/statem/statem_clnt.c:2662: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [`pkt->written`, `pkt->written` + 10]):unsigned64 by call to `WPACKET_sub_memcpy__`.
Showing all 14 steps of the trace


ssl/statem/statem_clnt.c:2608:1: Parameter `pkt->written`
2606.   }
2607.   
2608. > int tls_construct_client_verify(SSL *s, WPACKET *pkt)
2609.   {
2610.       EVP_PKEY *pkey;

ssl/statem/statem_clnt.c:2662:10: Call
2660.   #endif
2661.   
2662.       if (!WPACKET_sub_memcpy_u16(pkt, sig, u)) {
                 ^
2663.           SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);
2664.           goto err;

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

ssl/packet.c:251:1: Parameter `pkt->buf->length`
    249.   }
    250.   
    251. > int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)
    252.   {
    253.       WPACKET_SUB *sub;

ssl/packet.c:348:17: Call
  346.   {
  347.       if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)
  348.               || !WPACKET_memcpy(pkt, src, len)
                         ^
  349.               || !WPACKET_close(pkt))
  350.           return 0;

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 + 10]):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;

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_client_verify(SSL *s, WPACKET *pkt)\n{\n    EVP_PKEY *pkey;\n    const EVP_MD *md = s->s3->tmp.md[s->cert->key - s->cert->pkeys];\n    EVP_MD_CTX *mctx = NULL;\n    unsigned u = 0;\n    long hdatalen = 0;\n    void *hdata;\n    unsigned char *sig = NULL;\n    mctx = EVP_MD_CTX_new();\n    if (mctx == NULL) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_MALLOC_FAILURE);\n        goto err;\n    }\n    pkey = s->cert->key->privatekey;\n    hdatalen = BIO_get_mem_data(s->s3->handshake_buffer, &hdata);\n    if (hdatalen <= 0) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);\n        goto err;\n    }\n    if (SSL_USE_SIGALGS(s)&& !tls12_get_sigandhash(pkt, pkey, md)) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);\n        goto err;\n    }\n#ifdef SSL_DEBUG\n    fprintf(stderr, "Using client alg %s\\n", EVP_MD_name(md));\n#endif\n    sig = OPENSSL_malloc(EVP_PKEY_size(pkey));\n    if (sig == NULL) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_MALLOC_FAILURE);\n        goto err;\n    }\n    if (!EVP_SignInit_ex(mctx, md, NULL)\n        || !EVP_SignUpdate(mctx, hdata, hdatalen)\n        || (s->version == SSL3_VERSION\n            && !EVP_MD_CTX_ctrl(mctx, EVP_CTRL_SSL3_MASTER_SECRET,\n                                (int)s->session->master_key_length,\n                                s->session->master_key))\n        || !EVP_SignFinal(mctx, sig, &u, pkey)) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_EVP_LIB);\n        goto err;\n    }\n#ifndef OPENSSL_NO_GOST\n    {\n        int pktype = EVP_PKEY_id(pkey);\n        if (pktype == NID_id_GostR3410_2001\n            || pktype == NID_id_GostR3410_2012_256\n            || pktype == NID_id_GostR3410_2012_512)\n            BUF_reverse(sig, NULL, u);\n    }\n#endif\n    if (!WPACKET_sub_memcpy_u16(pkt, sig, u)) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);\n        goto err;\n    }\n    if (!ssl3_digest_cached_records(s, 0))\n        goto err;\n    OPENSSL_free(sig);\n    EVP_MD_CTX_free(mctx);\n    return 1;\n err:\n    OPENSSL_free(sig);\n    EVP_MD_CTX_free(mctx);\n    ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);\n    return 0;\n}', 'int WPACKET_sub_memcpy__(WPACKET *pkt, const void *src, size_t len,\n                         size_t lenbytes)\n{\n    if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)\n            || !WPACKET_memcpy(pkt, src, len)\n            || !WPACKET_close(pkt))\n        return 0;\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    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_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}']