ssl/ssl_lib.c:743: error: INTEGER_OVERFLOW_L2
  ([0, max(0, `ctx->sessions->num_items`)] - 1):unsigned64 by call to `SSL_free`.
Showing all 15 steps of the trace


ssl/ssl_lib.c:613:1: Parameter `ctx->sessions->num_items`
611.   }
612.   
613. > SSL *SSL_new(SSL_CTX *ctx)
614.   {
615.       SSL *s;

ssl/ssl_lib.c:743:5: Call
741.       return (s);
742.    err:
743.       SSL_free(s);
           ^
744.       SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
745.       return (NULL);

ssl/ssl_lib.c:977:1: Parameter `s->ctx->sessions->num_items`
  975.   }
  976.   
  977. > void SSL_free(SSL *s)
  978.   {
  979.       int i;

ssl/ssl_lib.c:1021:9: Call
  1019.       /* Make the next call work :-) */
  1020.       if (s->session != NULL) {
  1021.           ssl_clear_bad_session(s);
                  ^
  1022.           SSL_SESSION_free(s->session);
  1023.       }

ssl/ssl_sess.c:1083:1: Parameter `s->ctx->sessions->num_items`
    1081.   }
    1082.   
    1083. > int ssl_clear_bad_session(SSL *s)
    1084.   {
    1085.       if ((s->session != NULL) &&

ssl/ssl_sess.c:1088:9: Call
    1086.           !(s->shutdown & SSL_SENT_SHUTDOWN) &&
    1087.           !(SSL_in_init(s) || SSL_in_before(s))) {
    1088.           SSL_CTX_remove_session(s->ctx, s->session);
                    ^
    1089.           return (1);
    1090.       } else

ssl/ssl_sess.c:785:1: Parameter `ctx->sessions->num_items`
      783.   }
      784.   
      785. > int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)
      786.   {
      787.       return remove_session_lock(ctx, c, 1);

ssl/ssl_sess.c:787:12: Call
      785.   int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)
      786.   {
      787.       return remove_session_lock(ctx, c, 1);
                        ^
      788.   }
      789.   

ssl/ssl_sess.c:790:1: Parameter `ctx->sessions->num_items`
        788.   }
        789.   
        790. > static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)
        791.   {
        792.       SSL_SESSION *r;

ssl/ssl_sess.c:800:17: Call
        798.           if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) == c) {
        799.               ret = 1;
        800.               r = lh_SSL_SESSION_delete(ctx->sessions, c);
                               ^
        801.               SSL_SESSION_list_remove(ctx, c);
        802.           }

ssl/ssl_locl.h:697:1: Parameter `lh->num_items`
          695.   
          696.   DEFINE_STACK_OF(SSL_COMP)
          697. > DEFINE_LHASH_OF(SSL_SESSION);
          698.   
          699.   

ssl/ssl_locl.h:697:1: Call
          695.   
          696.   DEFINE_STACK_OF(SSL_COMP)
          697. > DEFINE_LHASH_OF(SSL_SESSION);
          698.   
          699.   

crypto/lhash/lhash.c:189:1: <LHS trace>
187.   }
188.   
189. > void *lh_delete(_LHASH *lh, const void *data)
190.   {
191.       unsigned long hash;

crypto/lhash/lhash.c:189:1: Parameter `lh->num_items`
            187.   }
            188.   
            189. > void *lh_delete(_LHASH *lh, const void *data)
            190.   {
            191.       unsigned long hash;

crypto/lhash/lhash.c:209:5: Binary operation: ([0, max(0, ctx->sessions->num_items)] - 1):unsigned64 by call to `SSL_free` 
            207.       }
            208.   
            209.       lh->num_items--;
                       ^
            210.       if ((lh->num_nodes > MIN_NODES) &&
            211.           (lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))

void *lh_delete(_LHASH *lh, const void *data)
{
    unsigned long hash;
    LHASH_NODE *nn, **rn;
    void *ret;
    lh->error = 0;
    rn = getrn(lh, data, &hash);
    if (*rn == NULL) {
        lh->num_no_delete++;
        return (NULL);
    } else {
        nn = *rn;
        *rn = nn->next;
        ret = nn->data;
        OPENSSL_free(nn);
        lh->num_delete++;
    }
    lh->num_items--;
    if ((lh->num_nodes > MIN_NODES) &&
        (lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))
        contract(lh);
    return (ret);
}
['SSL *SSL_new(SSL_CTX *ctx)\n{\n    SSL *s;\n    if (ctx == NULL) {\n        SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);\n        return (NULL);\n    }\n    if (ctx->method == NULL) {\n        SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);\n        return (NULL);\n    }\n    s = OPENSSL_zalloc(sizeof(*s));\n    if (s == NULL)\n        goto err;\n    RECORD_LAYER_init(&s->rlayer, s);\n    s->options = ctx->options;\n    s->min_proto_version = ctx->min_proto_version;\n    s->max_proto_version = ctx->max_proto_version;\n    s->mode = ctx->mode;\n    s->max_cert_list = ctx->max_cert_list;\n    s->references = 1;\n    s->cert = ssl_cert_dup(ctx->cert);\n    if (s->cert == NULL)\n        goto err;\n    RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);\n    s->msg_callback = ctx->msg_callback;\n    s->msg_callback_arg = ctx->msg_callback_arg;\n    s->verify_mode = ctx->verify_mode;\n    s->not_resumable_session_cb = ctx->not_resumable_session_cb;\n    s->sid_ctx_length = ctx->sid_ctx_length;\n    OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);\n    memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));\n    s->verify_callback = ctx->default_verify_callback;\n    s->generate_session_id = ctx->generate_session_id;\n    s->param = X509_VERIFY_PARAM_new();\n    if (s->param == NULL)\n        goto err;\n    X509_VERIFY_PARAM_inherit(s->param, ctx->param);\n    s->quiet_shutdown = ctx->quiet_shutdown;\n    s->max_send_fragment = ctx->max_send_fragment;\n    CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);\n    s->ctx = ctx;\n    s->tlsext_debug_cb = 0;\n    s->tlsext_debug_arg = NULL;\n    s->tlsext_ticket_expected = 0;\n    s->tlsext_status_type = -1;\n    s->tlsext_status_expected = 0;\n    s->tlsext_ocsp_ids = NULL;\n    s->tlsext_ocsp_exts = NULL;\n    s->tlsext_ocsp_resp = NULL;\n    s->tlsext_ocsp_resplen = -1;\n    CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);\n    s->initial_ctx = ctx;\n# ifndef OPENSSL_NO_EC\n    if (ctx->tlsext_ecpointformatlist) {\n        s->tlsext_ecpointformatlist =\n            OPENSSL_memdup(ctx->tlsext_ecpointformatlist,\n                           ctx->tlsext_ecpointformatlist_length);\n        if (!s->tlsext_ecpointformatlist)\n            goto err;\n        s->tlsext_ecpointformatlist_length =\n            ctx->tlsext_ecpointformatlist_length;\n    }\n    if (ctx->tlsext_ellipticcurvelist) {\n        s->tlsext_ellipticcurvelist =\n            OPENSSL_memdup(ctx->tlsext_ellipticcurvelist,\n                           ctx->tlsext_ellipticcurvelist_length);\n        if (!s->tlsext_ellipticcurvelist)\n            goto err;\n        s->tlsext_ellipticcurvelist_length =\n            ctx->tlsext_ellipticcurvelist_length;\n    }\n# endif\n# ifndef OPENSSL_NO_NEXTPROTONEG\n    s->next_proto_negotiated = NULL;\n# endif\n    if (s->ctx->alpn_client_proto_list) {\n        s->alpn_client_proto_list =\n            OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);\n        if (s->alpn_client_proto_list == NULL)\n            goto err;\n        memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,\n               s->ctx->alpn_client_proto_list_len);\n        s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;\n    }\n    s->verify_result = X509_V_OK;\n    s->default_passwd_callback = ctx->default_passwd_callback;\n    s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;\n    s->method = ctx->method;\n    if (!s->method->ssl_new(s))\n        goto err;\n    s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;\n    if (!SSL_clear(s))\n        goto err;\n    CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);\n#ifndef OPENSSL_NO_PSK\n    s->psk_client_callback = ctx->psk_client_callback;\n    s->psk_server_callback = ctx->psk_server_callback;\n#endif\n    s->job = NULL;\n    return (s);\n err:\n    SSL_free(s);\n    SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);\n    return (NULL);\n}', 'void SSL_free(SSL *s)\n{\n    int i;\n    if (s == NULL)\n        return;\n    i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);\n#ifdef REF_PRINT\n    REF_PRINT("SSL", s);\n#endif\n    if (i > 0)\n        return;\n#ifdef REF_CHECK\n    if (i < 0) {\n        fprintf(stderr, "SSL_free, bad reference count\\n");\n        abort();\n    }\n#endif\n    X509_VERIFY_PARAM_free(s->param);\n    dane_final(&s->dane);\n    CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);\n    if (s->bbio != NULL) {\n        if (s->bbio == s->wbio) {\n            s->wbio = BIO_pop(s->wbio);\n        }\n        BIO_free(s->bbio);\n        s->bbio = NULL;\n    }\n    BIO_free_all(s->rbio);\n    if (s->wbio != s->rbio)\n        BIO_free_all(s->wbio);\n    BUF_MEM_free(s->init_buf);\n    sk_SSL_CIPHER_free(s->cipher_list);\n    sk_SSL_CIPHER_free(s->cipher_list_by_id);\n    if (s->session != NULL) {\n        ssl_clear_bad_session(s);\n        SSL_SESSION_free(s->session);\n    }\n    clear_ciphers(s);\n    ssl_cert_free(s->cert);\n    OPENSSL_free(s->tlsext_hostname);\n    SSL_CTX_free(s->initial_ctx);\n#ifndef OPENSSL_NO_EC\n    OPENSSL_free(s->tlsext_ecpointformatlist);\n    OPENSSL_free(s->tlsext_ellipticcurvelist);\n#endif\n    sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);\n    sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);\n    OPENSSL_free(s->tlsext_ocsp_resp);\n    OPENSSL_free(s->alpn_client_proto_list);\n    sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);\n    if (s->method != NULL)\n        s->method->ssl_free(s);\n    RECORD_LAYER_release(&s->rlayer);\n    SSL_CTX_free(s->ctx);\n#if !defined(OPENSSL_NO_NEXTPROTONEG)\n    OPENSSL_free(s->next_proto_negotiated);\n#endif\n#ifndef OPENSSL_NO_SRTP\n    sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);\n#endif\n    OPENSSL_free(s);\n}', 'int ssl_clear_bad_session(SSL *s)\n{\n    if ((s->session != NULL) &&\n        !(s->shutdown & SSL_SENT_SHUTDOWN) &&\n        !(SSL_in_init(s) || SSL_in_before(s))) {\n        SSL_CTX_remove_session(s->ctx, s->session);\n        return (1);\n    } else\n        return (0);\n}', 'int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)\n{\n    return remove_session_lock(ctx, c, 1);\n}', 'static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)\n{\n    SSL_SESSION *r;\n    int ret = 0;\n    if ((c != NULL) && (c->session_id_length != 0)) {\n        if (lck)\n            CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);\n        if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) == c) {\n            ret = 1;\n            r = lh_SSL_SESSION_delete(ctx->sessions, c);\n            SSL_SESSION_list_remove(ctx, c);\n        }\n        if (lck)\n            CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);\n        if (ret) {\n            r->not_resumable = 1;\n            if (ctx->remove_session_cb != NULL)\n                ctx->remove_session_cb(ctx, r);\n            SSL_SESSION_free(r);\n        }\n    } else\n        ret = 0;\n    return (ret);\n}', 'DEFINE_LHASH_OF(SSL_SESSION)', 'void *lh_delete(_LHASH *lh, const void *data)\n{\n    unsigned long hash;\n    LHASH_NODE *nn, **rn;\n    void *ret;\n    lh->error = 0;\n    rn = getrn(lh, data, &hash);\n    if (*rn == NULL) {\n        lh->num_no_delete++;\n        return (NULL);\n    } else {\n        nn = *rn;\n        *rn = nn->next;\n        ret = nn->data;\n        OPENSSL_free(nn);\n        lh->num_delete++;\n    }\n    lh->num_items--;\n    if ((lh->num_nodes > MIN_NODES) &&\n        (lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))\n        contract(lh);\n    return (ret);\n}']