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

  - afs：修復 netns 拆除以取消預先配置充電器。修復 afs 網路命名空間的拆除過程，確保在停用傳入呼叫 (即 listen 0) 之前，取消負責保持預分配 rxrpc 呼叫/連接/對等點佇列充滿的任務項目。此外，如果由於 afs netns 正在被刪除而導致 net->live 為 false，則使 afs_charge_preallocation() 跳過充電，並使 afs_rx_new_call() 避免重新將充電器排入佇列。(此問題由 AI 審查發現)。(CVE-2026-74427)

請注意，Nessus 的判定取決於廠商所報告的套件是否存在。

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。

  - afs：修复 netns 拆卸以取消预分配充电器 修复 afs 网络命名空间的拆卸，以确保其取消在禁用传入呼叫（即监听 0）之前保持预分配 rxrpc 调用/连接/对等机队列充电的工作项。此外，如果由于要删除 afs netns 而 net->live 为 false，则使 afs_charge_preallocation（） 跳过充电并使 afs_rx_new_call（） 避免对充电器进行重新排队。（这是由 AI 审查发现的）。（CVE-2026-74427）

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 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。

  - afs: netns の解体処理を修正し、事前割り当てチャージャーをキャンセルするように変更。着信コールが無効化される (すなわち listen 0) 前に、事前割り当てされた rxrpc call/conn/peer キューをチャージし続けるワークアイテムを確実にキャンセルするよう、afs ネットワーク名前空間の解体処理を修正します。また、afs netns が削除中であるために net->live が false である場合、afs_charge_preallocation() がチャージ処理をスキップするようにし、afs_rx_new_call() がチャージャーの再キューイングを回避するようにします。(これは AI レビューにより発見されました)。(CVE-2026-74427)

Nessus は、ベンダーから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。

An update of the linux package has been released.

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

  - afs: Fix netns teardown to cancel the preallocation charger Fix the teardown of an afs network namespace     to make sure it cancels the work item that keeps the preallocated rxrpc call/conn/peer queue charged     before incoming calls are disabled (i.e. listen 0). Also, if net->live is false because the afs netns is     being deleted, make afs_charge_preallocation() skip charging and make afs_rx_new_call() avoid requeuing     the charger. (This was found by AI review). (CVE-2026-74427)

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

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-104540 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    afs: Fix netns teardown to cancel the preallocation charger

    Fix the teardown of an afs network namespace to make sure it cancels the     work item that keeps the preallocated rxrpc call/conn/peer queue charged     before incoming calls are disabled (i.e. listen 0).

    Also, if net->live is false because the afs netns is being deleted, make     afs_charge_preallocation() skip charging and make afs_rx_new_call() avoid     requeuing the charger.

    (This was found by AI review).

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-104544 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    afs: Fix netns teardown to cancel the preallocation charger

    Fix the teardown of an afs network namespace to make sure it cancels the     work item that keeps the preallocated rxrpc call/conn/peer queue charged     before incoming calls are disabled (i.e. listen 0).

    Also, if net->live is false because the afs netns is being deleted, make     afs_charge_preallocation() skip charging and make afs_rx_new_call() avoid     requeuing the charger.

    (This was found by AI review).

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
337615	Linux Distros 未修補弱點：CVE-2026-74427	Nessus	Misc.	2026/8/18	2026/8/28	critical
337615	Linux Distros 未修补的漏洞：CVE-2026-74427	Nessus	Misc.	2026/8/18	2026/8/28	critical
337615	Linux Distros のパッチ未適用の脆弱性: CVE-2026-74427	Nessus	Misc.	2026/8/18	2026/8/28	critical
334784	Photon OS 5.0: Linux PHSA-2026-5.0-92-0952	Nessus	PhotonOS Local Security Checks	2026/8/12	2026/9/4	high
337615	Linux Distros Unpatched Vulnerability : CVE-2026-74427	Nessus	Misc.	2026/8/18	2026/8/28	critical
339579	Unity Linux 20.1050e Security Update: kernel (UTSA-2026-104540)	Nessus	Unity Linux Local Security Checks	2026/8/26	2026/8/26	critical
343049	Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-500248)	Nessus	Oracle Linux Local Security Checks	2026/9/4	2026/9/5	high
339564	Unity Linux 20.1050a Security Update: kernel (UTSA-2026-104544)	Nessus	Unity Linux Local Security Checks	2026/8/26	2026/8/26	critical

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