远程 CentOS Linux 9 主机上安装的多个程序包受到 kernel-5.14.0-583.el9 版本变更日志中提及的多个漏洞影响。

  - 已修复 Linux 内核中的下列漏洞：blk-cgroup: Fix class @block_class's subsystem refcount leakage blkcg_fill_root_iostats() iterates over @block_class's devices by class_dev_iter_(init|next)(), but does not end iterating with class_dev_iter_exit(), so causes the class's subsystem refcount leakage. Fix by ending the iterating with class_dev_iter_exit(). (CVE-2025-21745)

  - 已修复 Linux 内核中的下列漏洞：io_uring/uring_cmd: unconditionally copy SQEs at prep time This isn't generally necessary, but conditions have been observed where SQE data is accessed from the original SQE after prep has been done and outside of the initial issue. Opcode prep handlers must ensure that any SQE related data is stable beyond the prep phase, but uring_cmd is a bit special in how it handles the SQE which makes it susceptible to reading stale data. If the application has reused the SQE before the original completes, then that can lead to data corruption. Down the line we can relax this again once uring_cmd has been sanitized a bit, and avoid unnecessarily copying the SQE.
    (CVE-2025-21837)

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 9：kernel-5.14.0-583.el9

medium Nessus 插件 ID 235716

版本 1.1