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。

  - svcrdma：拒绝段计数为 0 的写入/回复区块 对等机可发送段计数字段为零的写入或回复区块。xdr_check_write_chunk（） 仅拒绝段计数> rc_maxpages，因此 zero 通过范围检查，而 xdr_inline_decode（stream， 0） 返回当前（非空）光标而不前进。该函数返回 true，然后 pcl_alloc_write（） 将具有 ch_segcount == 0 的结构svc_rdma_chunk链接到rc_write_pcl或rc_reply_pcl。该系列较早版本的修补程序使 pcl_for_each_segment（） 对 ch_segcount == 0 安全，因此这不再驱动其以前的内存遍历。拒绝解码边界处的畸形帧仍然值得作为深度防御：它使退化的零段区块完全脱离解析的区块列表，因此任何直接走ch_segments的未来用户都无法观察到一个，并且它使零下层很容易向后移植到宏更改更具侵入性的树。RFC 8166 对于未描述远程缓冲区的写入/回复区块没有任何意义，因此不会有合法客户端受到影响。xdr_check_reply_chunk（） 通过 xdr_check_write_chunk（） 漏斗回复区块并继承相同的拒绝。pcl_alloc_write（） 还会在填充其段数组之前将每个区块链接到解析的区块列表。如果未来的更改削弱了 segcount-0 拒绝，则在填充循环期间消费者可以看到不完整的区块。重新排序，使 list_add_tail（） 遵循段填充循环，确保列表中只显示完全填充的区块。（CVE-2026-93228）

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-2026：1791741836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：vhost: fix hung thread due to erroneous iotlb entries In vhost_iotlb_add_range_ctx(), range size can overflow to 0 when start is 0 and last is ULONG_MAX. One instance where it can happen is when userspace sends an IOTLB message with iova=size=uaddr=0 (vhost_process_iotlb_msg). So, an entry with size = 0, start = 0, last = ULONG_MAX ends up in the iotlb. Next time a packet is sent, iotlb_access_ok() loops indefinitely due to that erroneous entry. Call Trace: <TASK> iotlb_access_ok+0x21b/0x3e0 drivers/vhost/vhost.c:1340 vq_meta_prefetch+0xbc/0x280 drivers/vhost/vhost.c:1366 vhost_transport_do_send_pkt+0xe0/0xfd0 drivers/vhost/vsock.c:104 vhost_worker+0x23d/0x3d0 drivers/vhost/vhost.c:372 kthread+0x2e9/0x3a0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 </TASK> Reported by syzbot at:
    https://syzkaller.appspot.com/bug?extid=0abd373e2e50d704db87 To fix this, do two things: 1. Return -EINVAL in vhost_chr_write_iter() when userspace asks to map a range with size 0. 2. Fix vhost_iotlb_add_range_ctx() to handle the range [0, ULONG_MAX] by splitting it into two entries.
    (CVE-2022-48862)

  - 已修复 Linux 内核中的下列漏洞：net: hns3: add vlan list lock to protect vlan list When adding port base VLAN, vf VLAN need to remove from HW and modify the vlan state in vf VLAN list as false. If the periodicity task is freeing the same node, it may cause use after free error. This patch adds a vlan list lock to protect the vlan list. (CVE-2022-49182)

  - 已修复 Linux 内核中的下列漏洞：perf/x86/amd: Fix crash due to race between amd_pmu_enable_all, perf NMI and throttling amd_pmu_enable_all() does: if (!test_bit(idx, cpuc->active_mask)) continue; amd_pmu_enable_event(cpuc->events[idx]); A perf NMI of another event can come between these two steps. Perf NMI handler internally disables and enables _all_ events, including the one which nmi-intercepted amd_pmu_enable_all() was in process of enabling. If that unintentionally enabled event has very low sampling period and causes immediate successive NMI, causing the event to be throttled, cpuc->events[idx] and cpuc->active_mask gets cleared by x86_pmu_stop(). This will result in amd_pmu_enable_event() getting called with event=NULL when amd_pmu_enable_all() resumes after handling the NMIs. This causes a kernel crash: BUG: kernel NULL pointer dereference, address: 0000000000000198 #PF:
    supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page [...] Call Trace: <TASK> amd_pmu_enable_all+0x68/0xb0 ctx_resched+0xd9/0x150 event_function+0xb8/0x130 ? hrtimer_start_range_ns+0x141/0x4a0 ? perf_duration_warn+0x30/0x30 remote_function+0x4d/0x60
    __flush_smp_call_function_queue+0xc4/0x500 flush_smp_call_function_queue+0x11d/0x1b0 do_idle+0x18f/0x2d0 cpu_startup_entry+0x19/0x20 start_secondary+0x121/0x160 secondary_startup_64_no_verify+0xe5/0xeb </TASK> amd_pmu_disable_all()/amd_pmu_enable_all() calls inside perf NMI handler were recently added as part of BRS enablement but I'm not sure whether we really need them. We can just disable BRS in the beginning and enable it back while returning from NMI. This will solve the issue by not enabling those events whose active_masks are set but are not yet enabled in hw pmu. (CVE-2022-49781)

  - 已修复 Linux 内核中的下列漏洞：blk-iolatency: Fix memory leak on add_disk() failures When a gendisk is successfully initialized but add_disk() fails such as when a loop device has invalid number of minor device numbers specified, blkcg_init_disk() is called during init and then blkcg_exit_disk() during error handling. Unfortunately, iolatency gets initialized in the former but doesn't get cleaned up in the latter. This is because, in non-error cases, the cleanup is performed by del_gendisk() calling rq_qos_exit(), the assumption being that rq_qos policies, iolatency being one of them, can only be activated once the disk is fully registered and visible. That assumption is true for wbt and iocost, but not so for iolatency as it gets initialized before add_disk() is called. It is desirable to lazy-init rq_qos policies because they are optional features and add to hot path overhead once initialized - each IO has to walk all the registered rq_qos policies. So, we want to switch iolatency to lazy init too. However, that's a bigger change. As a fix for the immediate problem, let's just add an extra call to rq_qos_exit() in blkcg_exit_disk(). This is safe because duplicate calls to rq_qos_exit() become noop's. (CVE-2022-50550)

  - 已修复 Linux 内核中的下列漏洞：usb: roles: fix NULL pointer issue when put module's reference In current design, usb role class driver will get usb_role_switch parent's module reference after the user get usb_role_switch device and put the reference after the user put the usb_role_switch device. However, the parent device of usb_role_switch may be removed before the user put the usb_role_switch. If so, then, NULL pointer issue will be met when the user put the parent module's reference. This will save the module pointer in structure of usb_role_switch. Then, we don't need to find module by iterating long relations. (CVE-2024-26747)

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
364137	Oracle Linux 10 / 9：Unbreakable Enterprise 内核 (ELSA-2026-500374)	Nessus	Oracle Linux Local Security Checks	2026/10/8	2026/10/8	high
351155	Debian dsa-6528：ata-modules-6.12.111+deb13-armmp-di - 安全更新	Nessus	Debian Local Security Checks	2026/9/29	2026/9/29	high
362907	Debian dla-4817：ata-modules-6.12.107+deb12-armmp-di - 安全更新	Nessus	Debian Local Security Checks	2026/10/4	2026/10/4	high
350108	Linux Distros 未修补的漏洞：CVE-2026-93228	Nessus	Misc.	2026/9/25	2026/10/16	critical
364688	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-2026：1791741836）	Nessus	Alma Linux Local Security Checks	2026/10/12	2026/10/13	critical

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