CentOS Linux 6 主機已安裝的套件會受到 TuxCare CENTOS6：CLSA-2025：1758010245 公告中提及的多個弱點影響。

  - 已解決 Linux 核心中的下列弱點：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)

  - 已解決 Linux 核心中的下列弱點：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)

  - 已解決 Linux 核心中的下列弱點：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)

請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。

偵測

CentOS Linux 6 [TuxCare] 安全性更新：核心 / kernel-abi-whitelists / kernel-debug / kernel-debug-devel / etc 多個漏洞（CENTOS6：CLSA-2025：1758010245）

high Nessus Plugin ID 360785

偵測

CentOS Linux 6 [TuxCare] 安全性更新：核心 / kernel-abi-whitelists / kernel-debug / kernel-debug-devel / etc 多個漏洞 （CENTOS6：CLSA-2025：1758010245）

high Nessus Plugin ID 360785

CentOS Linux 6 [TuxCare] 安全性更新：核心 / kernel-abi-whitelists / kernel-debug / kernel-debug-devel / etc 多個漏洞（CENTOS6：CLSA-2025：1758010245）