18bf80f4bSopenharmony_ci**Description:** 28bf80f4bSopenharmony_ci 38bf80f4bSopenharmony_ci**Issue number:** 48bf80f4bSopenharmony_ci 58bf80f4bSopenharmony_ci**Test & Result:** 68bf80f4bSopenharmony_ci 78bf80f4bSopenharmony_ci**CodeCheck:** 88bf80f4bSopenharmony_ci<table> 98bf80f4bSopenharmony_ci <tr> 108bf80f4bSopenharmony_ci <th>类型</th><th>自检项</th><th>自检结果</th> 118bf80f4bSopenharmony_ci </tr> 128bf80f4bSopenharmony_ci <tr> 138bf80f4bSopenharmony_ci <td rowspan="2">多线程相关</td><td>在类的成员变量中定义了vector/map/list等容器类型,且在多个成员函数中有操作时,需要加锁保护</td><td>自检结果:</td> 148bf80f4bSopenharmony_ci </tr> 158bf80f4bSopenharmony_ci <tr> 168bf80f4bSopenharmony_ci <td>定义全局变量,在多个函数中都有操作时,需要加锁保护</td><td>自检结果:</td> 178bf80f4bSopenharmony_ci </tr> 188bf80f4bSopenharmony_ci <tr> 198bf80f4bSopenharmony_ci <td rowspan="4">内存相关</td><td>调用外部接口时,确认是否对返回值做了判断,尤其外部接口返回了nullptr的情况,避免进程崩溃</td><td>自检结果:</td> 208bf80f4bSopenharmony_ci </tr> 218bf80f4bSopenharmony_ci <tr> 228bf80f4bSopenharmony_ci <td>调用安全函数时,如memcpy_s等,是否检查其返回值</td><td>自检结果:</td> 238bf80f4bSopenharmony_ci </tr> 248bf80f4bSopenharmony_ci <tr> 258bf80f4bSopenharmony_ci <td>检查函数中是否涉及了内存或资源申请(如文件句柄),注意每个异常退出流程,是否都已经将资源释放(推荐使用RAII)</td><td>自检结果:</td> 268bf80f4bSopenharmony_ci </tr> 278bf80f4bSopenharmony_ci </tr> 288bf80f4bSopenharmony_ci <tr> 298bf80f4bSopenharmony_ci <td>隐式内存分配场景:realpath、ReadParcelable序列化、cJSON相关函数时等,需主动释放或使用智能指针</td><td>自检结果:</td> 308bf80f4bSopenharmony_ci </tr> 318bf80f4bSopenharmony_ci <tr> 328bf80f4bSopenharmony_ci <td rowspan="4">校验外部输入</td><td>使用nlohmann:json解析外部输入时,需判断参数类型是否符合预期</td><td>自检结果:</td> 338bf80f4bSopenharmony_ci </tr> 348bf80f4bSopenharmony_ci <tr> 358bf80f4bSopenharmony_ci <td>所有外部输入均不可信,需判断外部输入是否直接作为内存分配的大小,数组下标、循环条件、SQL查询等</td><td>自检结果:</td> 368bf80f4bSopenharmony_ci </tr> 378bf80f4bSopenharmony_ci <tr> 388bf80f4bSopenharmony_ci <td>外部输入的路径不可信,需使用realpath做标准化处理,并判断路径的合法性</td><td>自检结果:</td> 398bf80f4bSopenharmony_ci </tr> 408bf80f4bSopenharmony_ci <tr> 418bf80f4bSopenharmony_ci <td>外部输入包括对外提供的接口,IPC的proxy/stub接口,序列化/反序列化接口等</td><td>自检结果:</td> 428bf80f4bSopenharmony_ci </tr> 438bf80f4bSopenharmony_ci </tr> 448bf80f4bSopenharmony_ci <tr> 458bf80f4bSopenharmony_ci <td rowspan="2">数学运算</td><td>代码中是否混合了加减乘除等运算,需检查是否可能导致整数溢出或符号翻转</td><td>自检结果:</td> 468bf80f4bSopenharmony_ci </tr> 478bf80f4bSopenharmony_ci <tr> 488bf80f4bSopenharmony_ci <td>需检查代码是否有高精度数字转换为低精度的操作,如果必须,建议使用C++安全类型转换接口</td><td>自检结果:</td> 498bf80f4bSopenharmony_ci </tr> 508bf80f4bSopenharmony_ci </tr> 518bf80f4bSopenharmony_ci <tr> 528bf80f4bSopenharmony_ci <td rowspan="1">秘钥相关</td><td>如变量临时保存了口令、秘钥等,需要在使用完成后及时清空(内存memset掉)</td><td>自检结果:</td> 538bf80f4bSopenharmony_ci </tr> 548bf80f4bSopenharmony_ci <tr> 558bf80f4bSopenharmony_ci <td rowspan="2">权限相关</td><td>作为系统服务对外提供了接口,是否做了权限保护和校验(如需要),只允许申请了权限的应用访问</td><td>自检结果:</td> 568bf80f4bSopenharmony_ci </tr> 578bf80f4bSopenharmony_ci <tr> 588bf80f4bSopenharmony_ci <td>内核对外提供了设备节点,是否做了权限保护,只允许特定的系统服务访问</td><td>自检结果:</td> 598bf80f4bSopenharmony_ci </tr> 608bf80f4bSopenharmony_ci </tr> 618bf80f4bSopenharmony_ci <tr> 628bf80f4bSopenharmony_ci <td rowspan="3">内核操作</td><td>如有mmap操作,并使用remap_pfn_range进行地址映射时,校验起始地址是否是用户态输入且没有做合法性校验</td><td>自检结果:</td> 638bf80f4bSopenharmony_ci </tr> 648bf80f4bSopenharmony_ci <tr> 658bf80f4bSopenharmony_ci <td>是否有copy_from_user,并对外部输入的数据做了长度校验,以防止缓冲区溢出</td><td>自检结果:</td> 668bf80f4bSopenharmony_ci </tr> 678bf80f4bSopenharmony_ci <tr> 688bf80f4bSopenharmony_ci <td>是否有使用copy_to_user,并在返回到用户态时,对数据做了完整初始化,或使用memset清空后再赋值</td><td>自检结果:</td> 698bf80f4bSopenharmony_ci </tr> 708bf80f4bSopenharmony_ci </tr> 718bf80f4bSopenharmony_ci</table> 72