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：usb: gadget: u_ether: Fix NULL pointer deref in eth_get_drvinfo Commit ec35c1969650 (usb: gadget: f_ncm: Fix net_device lifecycle with device_move) reparents the gadget device to /sys/devices/virtual during unbind, clearing the gadget pointer. If the userspace tool queries on the surviving interface during this detached window, this leads to a NULL pointer dereference. Unable to handle kernel NULL pointer dereference Call trace:
    eth_get_drvinfo+0x50/0x90 ethtool_get_drvinfo+0x5c/0x1f0 __dev_ethtool+0xaec/0x1fe0 dev_ethtool+0x134/0x2e0 dev_ioctl+0x338/0x560 Add a NULL check for dev->gadget in eth_get_drvinfo(). When detached, skip copying the fw_version and bus_info strings, which is natively handled by ethtool_get_drvinfo for empty strings. (CVE-2026-31727)

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：usb: gadget: u_ether: Fix NULL pointer deref in eth_get_drvinfo Commit ec35c1969650 (usb: gadget: f_ncm: Fix net_device lifecycle with device_move) reparents the gadget device to /sys/devices/virtual during unbind, clearing the gadget pointer. If the userspace tool queries on the surviving interface during this detached window, this leads to a NULL pointer dereference. Unable to handle kernel NULL pointer dereference Call trace:
    eth_get_drvinfo+0x50/0x90 ethtool_get_drvinfo+0x5c/0x1f0 __dev_ethtool+0xaec/0x1fe0 dev_ethtool+0x134/0x2e0 dev_ioctl+0x338/0x560 Add a NULL check for dev->gadget in eth_get_drvinfo(). When detached, skip copying the fw_version and bus_info strings, which is natively handled by ethtool_get_drvinfo for empty strings. (CVE-2026-31727)

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: usb: gadget: u_ether: Fix NULL pointer deref in eth_get_drvinfo Commit ec35c1969650 (usb: gadget: f_ncm: Fix net_device lifecycle with device_move) reparents the gadget device to /sys/devices/virtual during unbind, clearing the gadget pointer. If the userspace tool queries on the surviving interface during this detached window, this leads to a NULL pointer dereference. Unable to handle kernel NULL pointer dereference Call trace:
    eth_get_drvinfo+0x50/0x90 ethtool_get_drvinfo+0x5c/0x1f0 __dev_ethtool+0xaec/0x1fe0 dev_ethtool+0x134/0x2e0 dev_ioctl+0x338/0x560 Add a NULL check for dev->gadget in eth_get_drvinfo(). When detached, skip copying the fw_version and bus_info strings, which is natively handled by ethtool_get_drvinfo for empty strings. (CVE-2026-31727)

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。

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.

  - In the Linux kernel, the following vulnerability has been resolved: usb: gadget: u_ether: Fix NULL pointer     deref in eth_get_drvinfo Commit ec35c1969650 (usb: gadget: f_ncm: Fix net_device lifecycle with     device_move) reparents the gadget device to /sys/devices/virtual during unbind, clearing the gadget     pointer. If the userspace tool queries on the surviving interface during this detached window, this leads     to a NULL pointer dereference. Unable to handle kernel NULL pointer dereference Call trace:
    eth_get_drvinfo+0x50/0x90 ethtool_get_drvinfo+0x5c/0x1f0 __dev_ethtool+0xaec/0x1fe0     dev_ethtool+0x134/0x2e0 dev_ioctl+0x338/0x560 Add a NULL check for dev->gadget in eth_get_drvinfo(). When     detached, skip copying the fw_version and bus_info strings, which is natively handled by     ethtool_get_drvinfo for empty strings. (CVE-2026-31727)

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
311720	Linux Distros 未修补的漏洞：CVE-2026-31727	Nessus	Misc.	2026/5/2	2026/9/30	medium
311720	Linux Distros 未修補的弱點：CVE-2026-31727	Nessus	Misc.	2026/5/2	2026/9/30	medium
329149	SUSE SLED15 / SLES15: Linux カーネルのセキュリティ更新 (SUSE-SU-2026:3166-1)	Nessus	SuSE Local Security Checks	2026/7/23	2026/9/29	medium
335080	openSUSE 16:cluster-md-kmp-64kb / cluster-md-kmp-azure / cluster-md-kmp-default / etc (openSUSE-SU-2026:21555-1)	Nessus	SuSE Local Security Checks	2026/8/13	2026/9/19	high
311720	Linux Distros のパッチ未適用の脆弱性: CVE-2026-31727	Nessus	Misc.	2026/5/2	2026/9/30	medium
318365	Photon OS 5.0: Linux PHSA-2026-5.0-0849	Nessus	PhotonOS Local Security Checks	2026/6/3	2026/7/31	high
311720	Linux Distros Unpatched Vulnerability : CVE-2026-31727	Nessus	Misc.	2026/5/2	2026/9/30	medium
329149	SUSE SLED15 / SLES15 : Security update for the Linux Kernel (SUSE-SU-2026:3166-1)	Nessus	SuSE Local Security Checks	2026/7/23	2026/9/29	medium
335080	openSUSE 16: cluster-md-kmp-64kb / cluster-md-kmp-azure / cluster-md-kmp-default / etc (openSUSE-SU-2026:21555-1)	Nessus	SuSE Local Security Checks	2026/8/13	2026/9/19	high
333798	Photon OS 5.0: Linux PHSA-2026-5.0-92-0849	Nessus	PhotonOS Local Security Checks	2026/8/10	2026/8/22	high

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