iproute社区补丁分析回合

<h3>优先级:</h3><p>次要</p><p></p><h3>详细描述:</h3><p></p><p>以下补丁经评审需要合入openEuler-22.03-LTS</p><p></p><p></p><table ><tr><td colSpan="1" rowSpan="1">lnstat-Fix-deref-of-null-in-print_json-function</td><td colSpan="1" rowSpan="1">openEuler:iproute</td><td colSpan="1" rowSpan="1">a193733b7a7ef1e65e1b88045c32f96ed16caeb9</td><td colSpan="1" rowSpan="1">print_json函数里，jsonw_new函数创建json_writer_t对象可能为空，在使用前新增检查它是否为空，避免空指针引用。</td></tr><tr><td colSpan="1" rowSpan="1">mnl_utils-sanitize-incoming-netlink-payload-size-in-callbacks</td><td colSpan="1" rowSpan="1">openEuler:iproute</td><td colSpan="1" rowSpan="1">1a68525f4613b4e02e83d4b8004f22ac7ecbfedf</td><td colSpan="1" rowSpan="1">在回调mnlu_cb_stop和mnlu_cb_error不采用内核返回的有效数据长度，因为在mnlu_cb_stop中有出现过长度错误的情况，合入。</td></tr><tr><td colSpan="1" rowSpan="1">iproute2-prevent-memory-leak</td><td colSpan="1" rowSpan="1">openEuler:iproute</td><td colSpan="1" rowSpan="1">2c3ebb2ae08a634615e56303d784ddb366e47f04</td><td colSpan="1" rowSpan="1">几个函数在失败get_failed后没有清理已分配的nlmsghdr数据，会导致内存泄漏</td></tr><tr><td colSpan="1" rowSpan="1">libnetlink-validate-nlmsg-header-length-first</td><td colSpan="1" rowSpan="1">openEuler:iproute</td><td colSpan="1" rowSpan="1">78eebdbc7d2f96b01a18d7db33c1c99266efc4bc</td><td colSpan="1" rowSpan="1">在获取报文长度之前先校验报头长度，如果校验不通过就直接退；原先代码是先获取报文长度再校验包头长度。合入</td></tr><tr><td colSpan="1" rowSpan="1">tc-remove-tcindex-classifier</td><td colSpan="1" rowSpan="1">openEuler:iproute</td><td colSpan="1" rowSpan="1">bc0c1661eb229b77a65f8c5f305fd6fa56e9667f</td><td colSpan="1" rowSpan="1">内核8c710f75256b合入删除了tc中tcindex 分类器算法，欧拉也做了同步修改。所以建议iproute与内核保持同步</td></tr><tr><td colSpan="1" rowSpan="1">ip-fix-memory-leak-in-ip-maddr-show</td><td colSpan="1" rowSpan="1">openEuler:iproute</td><td colSpan="1" rowSpan="1">575322b09c3c6bc1806f2faa31edcfb64df302bb</td><td colSpan="1" rowSpan="1">修复ip Maddr show命令中的内存泄漏<br/> 在read_dev_mcast中，会分配ma_info的内存，但在使用后不会清除</td></tr><tr><td colSpan="1" rowSpan="1">ila-fix-potential-snprintf-buffer-overflow</td><td colSpan="1" rowSpan="1">openEuler:iproute</td><td colSpan="1" rowSpan="1">e8a3fca81cd4b8fee14cfb14a5ce9c1b3b63e797</td><td colSpan="1" rowSpan="1">修复snprintf 可能的数组溢出问题</td></tr><tr><td colSpan="1" rowSpan="1">bridge-fix-potential-snprintf-overflow</td><td colSpan="1" rowSpan="1">openEuler:iproute</td><td colSpan="1" rowSpan="1">4d80122ae82aea86cb740b5202f6c3fde6183538</td><td colSpan="1" rowSpan="1">修复snprintf函数存在的元素溢出的风险</td></tr></table><p></p>

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