如 TuxCare CENTOS6：CLSA-2025：1758010245公告所述，CentOS Linux 6 主机上安装的程序包受到多个漏洞的影响。

  - 已修复 Linux 内核中的下列漏洞：sch_hfsc: make hfsc_qlen_notify() idempotent hfsc_qlen_notify() is not idempotent either and not friendly to its callers, like fq_codel_dequeue(). Let's make it idempotent to ease qdisc_tree_reduce_backlog() callers' life: 1.
    update_vf() decreases cl->cl_nactive, so we can check whether it is non-zero before calling it. 2.
    eltree_remove() always removes RB node cl->el_node, but we can use RB_EMPTY_NODE() + RB_CLEAR_NODE() to make it safe. (CVE-2025-38177)

  - 已修复 Linux 内核中的下列漏洞：net: atm: fix /proc/net/atm/lec handling /proc/net/atm/lec must ensure safety against dev_lec[] changes. It appears it had dev_put() calls without prior dev_hold(), leading to imbalance and UAF. (CVE-2025-38180)

  - 已修复 Linux 内核中的下列漏洞：posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() If an exiting non-autoreaping task has already passed exit_notify() and calls handle_posix_cpu_timers() from IRQ, it can be reaped by its parent or debugger right after unlock_task_sighand(). If a concurrent posix_cpu_timer_del() runs at that moment, it won't be able to detect timer->it.cpu.firing != 0: cpu_timer_task_rcu() and/or lock_task_sighand() will fail. Add the tsk->exit_state check into run_posix_cpu_timers() to fix this. This fix is not needed if CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y, because exit_task_work() is called before exit_notify(). But the check still makes sense, task_work_add(&tsk->posix_cputimers_work.work) will fail anyway in this case.
    (CVE-2025-38352)

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 Linux 6 [TuxCare] 安全更新：kernel / kernel-abi-whitelists / kernel-debug / kernel-debug-devel / 等多个漏洞（CENTOS6：CLSA-2025：1758010245）

high Nessus 插件 ID 360785

版本 1.2

检测

CentOS Linux 6 [TuxCare] 安全更新：kernel / kernel-abi-whitelists / kernel-debug / kernel-debug-devel / 等多个漏洞 （CENTOS6：CLSA-2025：1758010245）

high Nessus 插件 ID 360785

版本 1.2

CentOS Linux 6 [TuxCare] 安全更新：kernel / kernel-abi-whitelists / kernel-debug / kernel-debug-devel / 等多个漏洞（CENTOS6：CLSA-2025：1758010245）