1. 修復的CVE CVE-2021-3997 systemd是一款基于Linux的系統和服務管理器。該產品兼容了SysV和LSB的啟動腳本，且提供了一個用來表示系統服務間依賴關系的框架。 systemd 存在安全漏洞，該漏洞是由于systemd-tmpfiles中不受控制的遞歸而存在的。本地用戶可以在tmp文件夾中創建多個嵌套目錄，case systemd會在系統啟動時崩潰。該漏洞允許本地用戶執行拒絕服務(DoS)攻擊。 2. 受影響的操作系統及軟件包 ·銀河麒麟桌面操作系統V10 SP1 x86_64 架構： libnss-myhostname、libnss-mymachines、libnss-resolve、libnss-systemd、libpam-systemd、libsystemd0、libudev1、systemd-container、systemd-coredump、systemd-journal-remote、systemd-sysv、systemd-tests、systemd-timesyncd、systemd、udev arm64 架構： libnss-myhostname、libnss-mymachines、libnss-resolve、libnss-systemd、libpam-systemd、libsystemd0、libudev1、systemd-container、systemd-coredump、systemd-journal-remote、systemd-sysv、systemd-tests、systemd-timesyncd、systemd、udev mips64el 架構： libnss-myhostname、libnss-mymachines、libnss-resolve、libnss-systemd、libpam-systemd、libsystemd0、libudev1、systemd-container、systemd-coredump、systemd-journal-remote、systemd-sysv、systemd-tests、systemd-timesyncd、systemd、udev loongarch64 架構： 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