【OLK-5.10】raid10测试，设置值4295到/sys/block/$md/md/safe_mode_delay接口，发现接口值溢出

【严重程度】一般
【特性】文件系统
【重现类型】有条件概率重现
【定位分析】

echo md/safe_mode_delay 时没有入参校验，输入较大数时会溢出。且处理字符串的函数本身也会溢出

【影响评估及测试建议】无

【对外部影响描述】无

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