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。

  - 在 Linux 内核中，已解决以下漏洞： fs/mount_setattr: always cleanup mount_kattr Make sure that finish_mount_kattr() is called after mount_kattr was succesfully built in both the success and failure case to prevent leaking any references we took when we built it. We returned early if path lookup failed thereby risking to leak an additional reference we took when building mount_kattr when an idmapped mount was requested. (CVE-2021-46923)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

AlmaLinux 9.2 主机上存在安装的程序包，该程序包受到 TuxCare ALMALINUX9.2：CLSA-2026：1787935638公告中提及的多个漏洞的影响。

  - 已修复 Linux 内核中的下列漏洞：fs/mount_setattr: always cleanup mount_kattr Make sure that finish_mount_kattr() is called after mount_kattr was succesfully built in both the success and failure case to prevent leaking any references we took when we built it. We returned early if path lookup failed thereby risking to leak an additional reference we took when building mount_kattr when an idmapped mount was requested. (CVE-2021-46923)

  - 已修复 Linux 内核中的下列漏洞：vdpa: ifcvf: Do proper cleanup if IFCVF init fails ifcvf_mgmt_dev leaks memory if it is not freed before returning. Call is made to correct return statement so memory does not leak. ifcvf_init_hw does not take care of this so it is needed to do it here. (CVE-2022-48706)

  - 已修复 Linux 内核中的下列漏洞：tracing/histogram: Fix a potential memory leak for kstrdup() kfree() is missing on an error path to free the memory allocated by kstrdup(): p = param = kstrdup(data->params[i], GFP_KERNEL); So it is better to free it via kfree(p). (CVE-2022-48768)

  - 已修复 Linux 内核中的下列漏洞：efi: fix NULL-deref in init error path In cases where runtime services are not supported or have been disabled, the runtime services workqueue will never have been allocated. Do not try to destroy the workqueue unconditionally in the unlikely event that EFI initialisation fails to avoid dereferencing a NULL pointer. (CVE-2022-48879)

  - 已修复 Linux 内核中的下列漏洞：can: af_can: fix NULL pointer dereference in can_rcv_filter Analogue to commit 8aa59e355949 (can: af_can: fix NULL pointer dereference in can_rx_register()) we need to check for a missing initialization of ml_priv in the receive path of CAN frames. Since commit 4e096a18867a (net: introduce CAN specific pointer in the struct net_device) the check for dev->type to be ARPHRD_CAN is not sufficient anymore since bonding or tun netdevices claim to be CAN devices but do not initialize ml_priv accordingly. (CVE-2022-48977)

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
224425	Linux Distros 未修补的漏洞: CVE-2021-46923	Nessus	Misc.	2025/3/5	2026/10/2	medium
361746	AlmaLinux 9.2 [TuxCare] 安全更新：bpftool / kernel / kernel-64k / kernel-64k-core / kernel-64k-debug 等多个漏洞（ALMALINUX9.2：CLSA-2026：1787935638）	Nessus	Alma Linux Local Security Checks	2026/10/1	2026/10/21	high

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