test/handshake_helper.c:721: error: INTEGER_OVERFLOW_L2
  ([0, max(0, `ctx->sessions->num_items`)] - 1):unsigned64 by call to `SSL_free`.
Showing all 17 steps of the trace


test/handshake_helper.c:704:1: Parameter `ctx->sessions->num_items`
702.   } PEER;
703.   
704. > static int create_peer(PEER *peer, SSL_CTX *ctx)
705.   {
706.       static const int peer_buffer_size = 64 * 1024;

test/handshake_helper.c:710:10: Call
708.       unsigned char *read_buf = NULL, *write_buf = NULL;
709.   
710.       if (!TEST_ptr(ssl = SSL_new(ctx))
                ^
711.               || !TEST_ptr(write_buf = OPENSSL_zalloc(peer_buffer_size))
712.               || !TEST_ptr(read_buf = OPENSSL_zalloc(peer_buffer_size)))

ssl/ssl_lib.c:666:1: Parameter `ctx->sessions->num_items`
  664.   }
  665.   
  666. > SSL *SSL_new(SSL_CTX *ctx)
  667.   {
  668.       SSL *s;

test/handshake_helper.c:721:5: Call
719.       return 1;
720.   err:
721.       SSL_free(ssl);
           ^
722.       OPENSSL_free(write_buf);
723.       OPENSSL_free(read_buf);

ssl/ssl_lib.c:1132:1: Parameter `s->session_ctx->sessions->num_items`
  1130.   }
  1131.   
  1132. > void SSL_free(SSL *s)
  1133.   {
  1134.       int i;

ssl/ssl_lib.c:1163:9: Call
  1161.       /* Make the next call work :-) */
  1162.       if (s->session != NULL) {
  1163.           ssl_clear_bad_session(s);
                  ^
  1164.           SSL_SESSION_free(s->session);
  1165.       }

ssl/ssl_sess.c:1120:1: Parameter `s->session_ctx->sessions->num_items`
    1118.   }
    1119.   
    1120. > int ssl_clear_bad_session(SSL *s)
    1121.   {
    1122.       if ((s->session != NULL) &&

ssl/ssl_sess.c:1125:9: Call
    1123.           !(s->shutdown & SSL_SENT_SHUTDOWN) &&
    1124.           !(SSL_in_init(s) || SSL_in_before(s))) {
    1125.           SSL_CTX_remove_session(s->session_ctx, s->session);
                    ^
    1126.           return 1;
    1127.       } else

ssl/ssl_sess.c:737:1: Parameter `ctx->sessions->num_items`
      735.   }
      736.   
      737. > int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)
      738.   {
      739.       return remove_session_lock(ctx, c, 1);

ssl/ssl_sess.c:739:12: Call
      737.   int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)
      738.   {
      739.       return remove_session_lock(ctx, c, 1);
                        ^
      740.   }
      741.   

ssl/ssl_sess.c:742:1: Parameter `ctx->sessions->num_items`
        740.   }
        741.   
        742. > static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)
        743.   {
        744.       SSL_SESSION *r;

ssl/ssl_sess.c:752:17: Call
        750.           if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) == c) {
        751.               ret = 1;
        752.               r = lh_SSL_SESSION_delete(ctx->sessions, c);
                               ^
        753.               SSL_SESSION_list_remove(ctx, c);
        754.           }

ssl/ssl_locl.h:729:1: Parameter `lh->num_items`
          727.   } TLSEXT_INDEX;
          728.   
          729. > DEFINE_LHASH_OF(SSL_SESSION);
          730.   /* Needed in ssl_cert.c */
          731.   DEFINE_LHASH_OF(X509_NAME);

ssl/ssl_locl.h:729:1: Call
          727.   } TLSEXT_INDEX;
          728.   
          729. > DEFINE_LHASH_OF(SSL_SESSION);
          730.   /* Needed in ssl_cert.c */
          731.   DEFINE_LHASH_OF(X509_NAME);

crypto/lhash/lhash.c:119:1: <LHS trace>
117.   }
118.   
119. > void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)
120.   {
121.       unsigned long hash;

crypto/lhash/lhash.c:119:1: Parameter `lh->num_items`
            117.   }
            118.   
            119. > void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)
            120.   {
            121.       unsigned long hash;

crypto/lhash/lhash.c:139:5: Binary operation: ([0, max(0, ctx->sessions->num_items)] - 1):unsigned64 by call to `SSL_free` 
            137.       }
            138.   
            139.       lh->num_items--;
                       ^
            140.       if ((lh->num_nodes > MIN_NODES) &&
            141.           (lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))

void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)
{
    unsigned long hash;
    OPENSSL_LH_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;
}
['static int create_peer(PEER *peer, SSL_CTX *ctx)\n{\n    static const int peer_buffer_size = 64 * 1024;\n    SSL *ssl = NULL;\n    unsigned char *read_buf = NULL, *write_buf = NULL;\n    if (!TEST_ptr(ssl = SSL_new(ctx))\n            || !TEST_ptr(write_buf = OPENSSL_zalloc(peer_buffer_size))\n            || !TEST_ptr(read_buf = OPENSSL_zalloc(peer_buffer_size)))\n        goto err;\n    peer->ssl = ssl;\n    peer->write_buf = write_buf;\n    peer->read_buf = read_buf;\n    peer->write_buf_len = peer->read_buf_len = peer_buffer_size;\n    return 1;\nerr:\n    SSL_free(ssl);\n    OPENSSL_free(write_buf);\n    OPENSSL_free(read_buf);\n    return 0;\n}', '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    s->references = 1;\n    s->lock = CRYPTO_THREAD_lock_new();\n    if (s->lock == NULL) {\n        OPENSSL_free(s);\n        s = NULL;\n        goto err;\n    }\n    if (RAND_get_rand_method() == RAND_OpenSSL()) {\n        s->drbg =\n            RAND_DRBG_new(RAND_DRBG_NID, RAND_DRBG_FLAG_CTR_USE_DF,\n                          RAND_DRBG_get0_public());\n        if (s->drbg == NULL\n            || RAND_DRBG_instantiate(s->drbg,\n                                     (const unsigned char *) SSL_version_str,\n                                     sizeof(SSL_version_str) - 1) == 0)\n            goto err;\n    }\n    RECORD_LAYER_init(&s->rlayer, s);\n    s->options = ctx->options;\n    s->dane.flags = ctx->dane.flags;\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->max_early_data = ctx->max_early_data;\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->record_padding_cb = ctx->record_padding_cb;\n    s->record_padding_arg = ctx->record_padding_arg;\n    s->block_padding = ctx->block_padding;\n    s->sid_ctx_length = ctx->sid_ctx_length;\n    if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))\n        goto err;\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->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;\n    s->max_send_fragment = ctx->max_send_fragment;\n    s->split_send_fragment = ctx->split_send_fragment;\n    s->max_pipelines = ctx->max_pipelines;\n    if (s->max_pipelines > 1)\n        RECORD_LAYER_set_read_ahead(&s->rlayer, 1);\n    if (ctx->default_read_buf_len > 0)\n        SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len);\n    SSL_CTX_up_ref(ctx);\n    s->ctx = ctx;\n    s->ext.debug_cb = 0;\n    s->ext.debug_arg = NULL;\n    s->ext.ticket_expected = 0;\n    s->ext.status_type = ctx->ext.status_type;\n    s->ext.status_expected = 0;\n    s->ext.ocsp.ids = NULL;\n    s->ext.ocsp.exts = NULL;\n    s->ext.ocsp.resp = NULL;\n    s->ext.ocsp.resp_len = 0;\n    SSL_CTX_up_ref(ctx);\n    s->session_ctx = ctx;\n#ifndef OPENSSL_NO_EC\n    if (ctx->ext.ecpointformats) {\n        s->ext.ecpointformats =\n            OPENSSL_memdup(ctx->ext.ecpointformats,\n                           ctx->ext.ecpointformats_len);\n        if (!s->ext.ecpointformats)\n            goto err;\n        s->ext.ecpointformats_len =\n            ctx->ext.ecpointformats_len;\n    }\n    if (ctx->ext.supportedgroups) {\n        s->ext.supportedgroups =\n            OPENSSL_memdup(ctx->ext.supportedgroups,\n                           ctx->ext.supportedgroups_len\n                                * sizeof(*ctx->ext.supportedgroups));\n        if (!s->ext.supportedgroups)\n            goto err;\n        s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;\n    }\n#endif\n#ifndef OPENSSL_NO_NEXTPROTONEG\n    s->ext.npn = NULL;\n#endif\n    if (s->ctx->ext.alpn) {\n        s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len);\n        if (s->ext.alpn == NULL)\n            goto err;\n        memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len);\n        s->ext.alpn_len = s->ctx->ext.alpn_len;\n    }\n    s->verified_chain = NULL;\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    s->key_update = SSL_KEY_UPDATE_NONE;\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    if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data))\n        goto err;\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->psk_find_session_cb = ctx->psk_find_session_cb;\n    s->psk_use_session_cb = ctx->psk_use_session_cb;\n    s->job = NULL;\n#ifndef OPENSSL_NO_CT\n    if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback,\n                                        ctx->ct_validation_callback_arg))\n        goto err;\n#endif\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    CRYPTO_DOWN_REF(&s->references, &i, s->lock);\n    REF_PRINT_COUNT("SSL", s);\n    if (i > 0)\n        return;\n    REF_ASSERT_ISNT(i < 0);\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    ssl_free_wbio_buffer(s);\n    BIO_free_all(s->wbio);\n    BIO_free_all(s->rbio);\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    SSL_SESSION_free(s->psksession);\n    OPENSSL_free(s->psksession_id);\n    clear_ciphers(s);\n    ssl_cert_free(s->cert);\n    OPENSSL_free(s->ext.hostname);\n    SSL_CTX_free(s->session_ctx);\n#ifndef OPENSSL_NO_EC\n    OPENSSL_free(s->ext.ecpointformats);\n    OPENSSL_free(s->ext.supportedgroups);\n#endif\n    sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);\n#ifndef OPENSSL_NO_OCSP\n    sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);\n#endif\n#ifndef OPENSSL_NO_CT\n    SCT_LIST_free(s->scts);\n    OPENSSL_free(s->ext.scts);\n#endif\n    OPENSSL_free(s->ext.ocsp.resp);\n    OPENSSL_free(s->ext.alpn);\n    OPENSSL_free(s->ext.tls13_cookie);\n    OPENSSL_free(s->clienthello);\n    OPENSSL_free(s->pha_context);\n    EVP_MD_CTX_free(s->pha_dgst);\n    sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);\n    sk_X509_pop_free(s->verified_chain, X509_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    ASYNC_WAIT_CTX_free(s->waitctx);\n#if !defined(OPENSSL_NO_NEXTPROTONEG)\n    OPENSSL_free(s->ext.npn);\n#endif\n#ifndef OPENSSL_NO_SRTP\n    sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);\n#endif\n    RAND_DRBG_free(s->drbg);\n    CRYPTO_THREAD_lock_free(s->lock);\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->session_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_THREAD_write_lock(ctx->lock);\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        c->not_resumable = 1;\n        if (lck)\n            CRYPTO_THREAD_unlock(ctx->lock);\n        if (ret)\n            SSL_SESSION_free(r);\n        if (ctx->remove_session_cb != NULL)\n            ctx->remove_session_cb(ctx, c);\n    } else\n        ret = 0;\n    return ret;\n}', 'DEFINE_LHASH_OF(SSL_SESSION)', 'void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)\n{\n    unsigned long hash;\n    OPENSSL_LH_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}']