TmEcode Detect(ThreadVars *tv, Packet *p, void *data, PacketQueue *pq, PacketQueue *postpq)
{
    DEBUG_VALIDATE_PACKET(p);

    DetectEngineCtx *de_ctx = NULL;
    DetectEngineThreadCtx *det_ctx = (DetectEngineThreadCtx *)data;
    if (det_ctx == NULL) {
        printf("ERROR: Detect has no thread ctx\n");
        goto error;
    }

    if (unlikely(SC_ATOMIC_GET(det_ctx->so_far_used_by_detect) == 0)) {
        (void)SC_ATOMIC_SET(det_ctx->so_far_used_by_detect, 1);
        SCLogDebug("Detect Engine using new det_ctx - %p",
                  det_ctx);
    }

    /* if in MT mode _and_ we have tenants registered, use
     * MT logic. */
    if (det_ctx->mt_det_ctxs_cnt > 0 && det_ctx->TenantGetId != NULL)
    {
        uint32_t tenant_id = p->tenant_id;
        if (tenant_id == 0)
            tenant_id = det_ctx->TenantGetId(det_ctx, p);
        if (tenant_id > 0 && tenant_id < det_ctx->mt_det_ctxs_cnt) {
            p->tenant_id = tenant_id;
            det_ctx = GetTenantById(det_ctx->mt_det_ctxs_hash, tenant_id);
            if (det_ctx == NULL)
                return TM_ECODE_OK;
            de_ctx = det_ctx->de_ctx;
            if (de_ctx == NULL)
                return TM_ECODE_OK;

            if (unlikely(SC_ATOMIC_GET(det_ctx->so_far_used_by_detect) == 0)) {
                (void)SC_ATOMIC_SET(det_ctx->so_far_used_by_detect, 1);
                SCLogDebug("MT de_ctx %p det_ctx %p (tenant %u)", de_ctx, det_ctx, tenant_id);
            }
        } else {
            /* use default if no tenants are registered for this packet */
            de_ctx = det_ctx->de_ctx;
        }
    } else {
        de_ctx = det_ctx->de_ctx;
    }

    if (p->flow) {
        DetectFlow(tv, de_ctx, det_ctx, p);
    } else {
        DetectNoFlow(tv, de_ctx, det_ctx, p);
    }
    return TM_ECODE_OK;
error:
    return TM_ECODE_FAILED;
}

The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.