（本报记者朱隽、王浩、常钦、郁静娴、李晓晴、邓剑洋）
9. What is the difference between a cold email and a spam email?
。业内人士推荐搜狗输入法下载作为进阶阅读
文 | 锌刻度，作者 | 李觐麟，编辑 | 黎文婕
In January 2024, CVE-2024-21626 showed that a file descriptor leak in runc (the standard container runtime) allowed containers to access the host filesystem. The container’s mount namespace was intact — the escape happened through a leaked fd that runc failed to close before handing control to the container. In 2025, three more runc CVEs (CVE-2025-31133, CVE-2025-52565, CVE-2025-52881) demonstrated mount race conditions that allowed writing to protected host paths from inside containers.
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