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：net: fddi: fix UAF in fza_probe fp is netdev private data and it cannot be used after free_netdev() call. Using fp after free_netdev() can cause UAF bug. Fix it by moving free_netdev() after error message. TURBOchannel adapter) (CVE-2021-47306)

請注意，Nessus 依賴供應商報告的套件存在。

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。

  - 已修复 Linux 内核中的下列漏洞：net: fddi: fix UAF in fza_probe fp is netdev private data and it cannot be used after free_netdev() call. Using fp after free_netdev() can cause UAF bug. Fix it by moving free_netdev() after error message. TURBOchannel adapter) (CVE-2021-47306)

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。

  - Linux カーネルでは、以下の脆弱性が解決されています: net: fddi: fix UAF in fza_probe fp is netdev private data and it cannot be used after free_netdev() call. Using fp after free_netdev() can cause UAF bug. Fix it by moving free_netdev() after error message. TURBOchannel adapter) (CVE-2021-47306)

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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990051 advisory.

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

    net: fddi: fix UAF in fza_probe

    fp is netdev private data and it cannot be     used after free_netdev() call. Using fp after free_netdev()     can cause UAF bug. Fix it by moving free_netdev() after error message.

    TURBOchannel adapter)

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 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: net: fddi: fix UAF in fza_probe fp is     netdev private data and it cannot be used after free_netdev() call. Using fp after free_netdev() can cause     UAF bug. Fix it by moving free_netdev() after error message. TURBOchannel adapter) (CVE-2021-47306)

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-2025-986873 advisory.

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

    net: fddi: fix UAF in fza_probe

    fp is netdev private data and it cannot be     used after free_netdev() call. Using fp after free_netdev()     can cause UAF bug. Fix it by moving free_netdev() after error message.

    TURBOchannel adapter)

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
249766	Linux Distros 未修補的弱點：CVE-2021-47306	Nessus	Misc.	2025/8/15	2026/1/15	high
249766	Linux Distros 未修补的漏洞：CVE-2021-47306	Nessus	Misc.	2025/8/15	2026/1/15	high
249766	Linux Distros のパッチ未適用の脆弱性: CVE-2021-47306	Nessus	Misc.	2025/8/15	2026/1/15	high
272665	Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990051)	Nessus	Unity Linux Local Security Checks	2025/11/5	2025/11/5	high
249766	Linux Distros Unpatched Vulnerability : CVE-2021-47306	Nessus	Misc.	2025/8/15	2026/1/15	high
268400	Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986873)	Nessus	Unity Linux Local Security Checks	2025/10/7	2025/10/15	high
239342	TencentOS Server 4: kernel (TSSA-2024:0981)	Nessus	Tencent Local Security Checks	2025/6/16	2025/12/4	high

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