远程 CentOS Linux 9 主机上存在安装的程序包该程序包受到 kernel-5.14.0-620.el9 版本变更日志中提及的多个漏洞的影响。

  - 已修复 Linux 内核中的下列漏洞：libfs: fix get_stashed_dentry() get_stashed_dentry() tries to optimistically retrieve a stashed dentry from a provided location. It needs to ensure to hold rcu lock before it dereference the stashed location to prevent UAF issues. Use rcu_dereference() instead of READ_ONCE() it's effectively equivalent with some lockdep bells and whistles and it communicates clearly that this expects rcu protection. (CVE-2024-46801)

  - 已修复 Linux 内核中的下列漏洞：fs/fhandle.c: fix a race in call of has_locked_children() may_decode_fh() is calling has_locked_children() while holding no locks. That's an oopsable race... The rest of the callers are safe since they are holding namespace_sem and are guaranteed a positive refcount on the mount in question. Rename the current has_locked_children() to
    __has_locked_children(), make it static and switch the fs/namespace.c users to it. Make has_locked_children() a wrapper for __has_locked_children(), calling the latter under read_seqlock_excl(&mount_lock). (CVE-2025-38306)

  - 已修复 Linux 内核中的下列漏洞：do_change_type(): refuse to operate on unmounted/not ours mounts Ensure that propagation settings can only be changed for mounts located in the caller's mount namespace. This change aligns permission checking with the rest of mount(2).
    (CVE-2025-38498)

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

检测

CentOS 9kernel-5.14.0-620.el9

medium Nessus 插件 ID 266320

版本 1.1