Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - 已修复 Linux 内核中的下列漏洞：blk-cgroup: save IRQ state in blkg_tryget_closest() bio_set_dev() associates the bio with a blkg through bio_associate_blkg(). If the blkg lookup misses, blkg_tryget_closest() takes q->queue_lock with spin_lock_irq() and releases it with spin_unlock_irq(), which unconditionally enables local interrupts. Callers may call bio_set_dev() with interrupts already disabled, e.g. dm-thin's pool_map() does so while holding pool->lock taken with spin_lock_irq(). The nested spin_unlock_irq() then enables interrupts while pool->lock is still held, so an I/O completion softirq can run on the same CPU, re-acquire pool->lock (thin_endio(), or overwrite_endio() -> complete_mapping_preparation()) and deadlock. lockdep reports this as inconsistent SOFTIRQ-ON-W to IN-SOFTIRQ-W usage. Commit 3a762de55b4e (block: save irq state in blkg_lookup_create()) fixed the same problem while the lock lived in blkg_lookup_create(), but commit 9327a865e395 (blk-cgroup:
    don't nest queue_lock under rcu in blkg_lookup_create()) moved the locking into blkg_tryget_closest() and reverted it to spin_lock_irq(). Save and restore the caller's IRQ state instead. (CVE-2026-98832)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

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：blk-cgroup: save IRQ state in blkg_tryget_closest() bio_set_dev() associates the bio with a blkg through bio_associate_blkg(). If the blkg lookup misses, blkg_tryget_closest() takes q->queue_lock with spin_lock_irq() and releases it with spin_unlock_irq(), which unconditionally enables local interrupts. Callers may call bio_set_dev() with interrupts already disabled, e.g. dm-thin's pool_map() does so while holding pool->lock taken with spin_lock_irq(). The nested spin_unlock_irq() then enables interrupts while pool->lock is still held, so an I/O completion softirq can run on the same CPU, re-acquire pool->lock (thin_endio(), or overwrite_endio() -> complete_mapping_preparation()) and deadlock. lockdep reports this as inconsistent SOFTIRQ-ON-W to IN-SOFTIRQ-W usage. Commit 3a762de55b4e (block: save irq state in blkg_lookup_create()) fixed the same problem while the lock lived in blkg_lookup_create(), but commit 9327a865e395 (blk-cgroup:
    don't nest queue_lock under rcu in blkg_lookup_create()) moved the locking into blkg_tryget_closest() and reverted it to spin_lock_irq(). Save and restore the caller's IRQ state instead. (CVE-2026-98832)

請注意，Nessus 依賴供應商報告的套件存在。

Linux/Unix ホストには、ベンダーが提供するパッチが利用できない脆弱性の影響を受ける複数のパッケージがインストールされています。

  - Linux カーネルでは、以下の脆弱性が解決されています: blk-cgroup: save IRQ state in blkg_tryget_closest() bio_set_dev() associates the bio with a blkg through bio_associate_blkg(). If the blkg lookup misses, blkg_tryget_closest() takes q->queue_lock with spin_lock_irq() and releases it with spin_unlock_irq(), which unconditionally enables local interrupts. Callers may call bio_set_dev() with interrupts already disabled, e.g. dm-thin's pool_map() does so while holding pool->lock taken with spin_lock_irq(). The nested spin_unlock_irq() then enables interrupts while pool->lock is still held, so an I/O completion softirq can run on the same CPU, re-acquire pool->lock (thin_endio(), or overwrite_endio() -> complete_mapping_preparation()) and deadlock. lockdep reports this as inconsistent SOFTIRQ-ON-W to IN-SOFTIRQ-W usage. Commit 3a762de55b4e (block: save irq state in blkg_lookup_create()) fixed the same problem while the lock lived in blkg_lookup_create(), but commit 9327a865e395 (blk-cgroup:
    don't nest queue_lock under rcu in blkg_lookup_create()) moved the locking into blkg_tryget_closest() and reverted it to spin_lock_irq(). Save and restore the caller's IRQ state instead. (CVE-2026-98832)

Nessus は、ベンダーによって報告されたパッケージの存在に依存していることに注意してください。

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: save IRQ state in     blkg_tryget_closest() bio_set_dev() associates the bio with a blkg through bio_associate_blkg(). If the     blkg lookup misses, blkg_tryget_closest() takes q->queue_lock with spin_lock_irq() and releases it with     spin_unlock_irq(), which unconditionally enables local interrupts. Callers may call bio_set_dev() with     interrupts already disabled, e.g. dm-thin's pool_map() does so while holding pool->lock taken with     spin_lock_irq(). The nested spin_unlock_irq() then enables interrupts while pool->lock is still held, so     an I/O completion softirq can run on the same CPU, re-acquire pool->lock (thin_endio(), or     overwrite_endio() -> complete_mapping_preparation()) and deadlock. lockdep reports this as inconsistent     SOFTIRQ-ON-W to IN-SOFTIRQ-W usage. Commit 3a762de55b4e (block: save irq state in blkg_lookup_create())     fixed the same problem while the lock lived in blkg_lookup_create(), but commit 9327a865e395 (blk-cgroup:
    don't nest queue_lock under rcu in blkg_lookup_create()) moved the locking into blkg_tryget_closest() and     reverted it to spin_lock_irq(). Save and restore the caller's IRQ state instead. (CVE-2026-98832)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	名稱	產品	系列	已發布	已更新	嚴重性
367641	Linux Distros 未修补的漏洞：CVE-2026-98832	Nessus	Misc.	2026/10/20	2026/10/21	medium
367641	Linux Distros 未修補弱點：CVE-2026-98832	Nessus	Misc.	2026/10/20	2026/10/21	medium
367641	Linux Distros のパッチ未適用の脆弱性: CVE-2026-98832	Nessus	Misc.	2026/10/20	2026/10/21	medium
367641	Linux Distros Unpatched Vulnerability : CVE-2026-98832	Nessus	Misc.	2026/10/20	2026/10/21	medium

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