Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且供應商未提供可用的修補程式。

  - 已解決 Linux 核心中的下列弱點：LoongArch: Report dying CPU to RCU in stop_this_cpu() This is a port of MIPS commit 9f3f3bdc6d9dac1 (MIPS: smp: report dying CPU to RCU in stop_this_cpu()). smp_send_stop() parks all secondary CPUs in stop_this_cpu(). And the function marks the CPU offline for the scheduler via set_cpu_online(false) but never informs RCU, so RCU keeps expecting a quiescent state from CPUs that are now spinning forever with interrupts disabled. As long as nothing waits for an RCU grace period after smp_send_stop() this is harmless, which is why it went unnoticed. However, since commit 91840be8f710370 (irq_work: Fix use-after-free in irq_work_single() on PREEMPT_RT), irq_work_sync() calls synchronize_rcu() on architectures without an irq_work self-IPI, i.e. where arch_irq_work_has_interrupt() returns false. Any irq_work_sync() issued in the reboot/shutdown/halt path after smp_send_stop() then blocks on a grace period that can never complete, hanging the reboot: WARNING:
    CPU: 0 PID: 15 at kernel/irq_work.c:144 irq_work_queue_on ... rcu: INFO: rcu_sched detected stalls on CPUs/tasks: rcu: Offline CPU 1 blocking current GP. rcu: Offline CPU 2 blocking current GP. rcu: Offline CPU 3 blocking current GP. This issue needs some hacks to reproduce, and it was not noticed on LoongArch because arch_irq_work_has_interrupt() usually returns true. Call rcutree_report_cpu_dead() once interrupts are disabled, mirroring the generic CPU-hotplug offline path, so RCU stops waiting on the parked CPUs and grace periods can still complete. LoongArch shuts down all CPUs here without going through the CPU-hotplug mechanism, so this report is not otherwise issued. (CVE-2026-64250)

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Linux Distros 未修補弱點：CVE-2026-64250

medium Nessus Plugin ID 329621

版本 1.5

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版本 1.5 Aug 6, 2026, 3:43 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202608061543
版本 1.4 Jul 30, 2026, 3:30 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202607300330
版本 1.3 Jul 29, 2026, 12:29 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202607290029
版本 1.2 Jul 28, 2026, 3:13 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202607280313
版本 1.1 Jul 25, 2026, 1:06 PM New Plugin Feed: 202607251306