远程 Ubuntu 24.04 LTS / 25.10 主机上安装的程序包受到 USN-8094-1 公告中提及的多个漏洞的影响。

    Qualys 发现AppArmor Linux 内核安全模块 (LSM) 中存在数个漏洞。
    非特权本地攻击者可利用这些问题加载、替换及删除任意 AppArmor 配置文件从而造成拒绝服务、暴露敏感信息内核内存、本地权限升级或可能逃逸容器。LP #2143853

    据发现部分支持 RDSEED 指令的 AMD Zen 5 处理器未正确处理熵可能导致消耗不充分的随机值。本地攻击者可能利用此问题影响 RDSEED 指令返回的值从而导致机密性和完整性丢失。 (CVE-2025-62626)

    在 Linux 内核中发现多个安全问题。攻击者可能利用这些问题入侵系统。此更新修正了以下子系统中的缺陷：

    - ARM64 架构；

    - S390 架构；

    - x86 架构；

    - 区块层子系统；

    - 加密 API；

    - 计算加速框架；

    - ATM 驱动程序；

    - 网络块设备驱动程序；

    - 蓝牙驱动程序；

    - 数据采集框架和驱动程序；

    - 硬件加密设备驱动程序；

    - 设备频率缩放框架；

    - Intel Stratix 10 固件驱动程序

    - GPIO 子系统；

    - GPU 驱动程序；

    - Microsoft Hyper-V 驱动程序；

    - CoreSight HW 跟踪驱动程序

    - IIO 子系统；

    - InfiniBand 驱动程序；

    - 输入设备核心驱动程序；

    - 输入设备（平板电脑）驱动程序；

    - IOMMU 子系统；

    - IRQ 芯片驱动程序；

    - Macintosh 设备驱动程序；

    - 多设备驱动程序；

    - MOST（媒体导向系统传输）驱动程序；

    - MTD 块设备驱动程序；

    - 网络驱动程序；

    - Mellanox 网络驱动程序；

    -TI 网络驱动程序

    - 以太网团队驱动程序

    - MediaTek 网络驱动程序

    - NVME 驱动程序；

    - Pin 控制器子系统；

    - x86 平台驱动程序；

    - 电压和电流调节器驱动程序；

    - Real Time Clock 驱动程序；

    - S/390 驱动程序；

    - SCSI 子系统；

    -德州仪器 SoC 驱动程序

    - SPI 子系统；

    - 媒体导向系统传输 (MOST) 驱动程序

    - Realtek RTL8723BS SDIO 驱动程序

    - TCM 子系统；

    - UFS 子系统；

    - DesignWare USB3 驱动程序；

    - USB Gadget 驱动程序；

    - Renesas USBHS 控制器驱动程序；

    - USB Mass Storage 驱动程序；

    - USB Type-C 连接器系统软件接口驱动程序；

    - Backlight 驱动程序；

    - Framebuffer 层；

    - AFS 文件系统；

    - BFS 文件系统

    - BTRFS 文件系统；

    - EROFS 文件系统；

    - Ext4 文件系统；

    - FAT 文件系统；

    - GFS2 文件系统；

    - 区块设备的日志层 (JBD2)

    - 文件系统基础设施；

    - 网络文件系统 (NFS) 客户端；

    - NTFS3 文件系统；

    - OCFS2 文件系统

    - SMB 网络文件系统；

    - XFS 文件系统

    - BPF 子系统；

    - MediaTek SoC 驱动程序

    - 蓝牙子系统；

    - io_uring 子系统；

    - 锁定基元；

    - 计划程序基础设施；

    - Timer 子系统；

    - 跟踪基础设施；

    - Kexec HandOver (KHO)

    - 内存管理；

    - Ceph Core 库；

    - Networking 核心；

    - Devlink API；

    - IPv4 联网；

    - IPv6 联网；

    - 多路径 TCP；

    - Open vSwitch；

    - 网络流量控制；

    - VMware vSockets 驱动程序；

    - eXpress 数据路径；

    - 完整性度量架构 (IMA) 框架；

    - 简化了强制访问控制内核框架；

    - FireWire 声音驱动程序；

    - HD-audio 驱动程序；

    - Turtle Beach Wavefront ALSA 驱动程序

    - SoundWire (SDCA) ASoC 驱动程序； (CVE-2025-40246, CVE-2025-40247, CVE-2025-40248, CVE-2025-40249, CVE-2025-40250, CVE-2025-40251, CVE-2025-40252, CVE-2025-40253, CVE-2025-40254, CVE-2025-40255, CVE-2025-40257, CVE-2025-40258, CVE-2025-40259, CVE-2025-40260, CVE-2025-40261, CVE-2025-40262, CVE-2025-40263, CVE-2025-40264, CVE-2025-40265, CVE-2025-40266, CVE-2025-40290, CVE-2025-40345, CVE-2025-68212, CVE-2025-68213, CVE-2025-68214, CVE-2025-68215, CVE-2025-68217, CVE-2025-68218, CVE-2025-68219, CVE-2025-68220, CVE-2025-68221, CVE-2025-68222, CVE-2025-68223, CVE-2025-68225, CVE-2025-68227, CVE-2025-68228, CVE-2025-68229, CVE-2025-68230, CVE-2025-68231, CVE-2025-68232, CVE-2025-68233, CVE-2025-68234, CVE-2025-68235, CVE-2025-68236, CVE-2025-68237, CVE-2025-68238, CVE-2025-68254, CVE-2025-68255, CVE-2025-68256, CVE-2025-68257, CVE-2025-68258, CVE-2025-68259, CVE-2025-68261, CVE-2025-68262, CVE-2025-68263, CVE-2025-68264, CVE-2025-68265, CVE-2025-68266, CVE-2025-68281, CVE-2025-68282, CVE-2025-68283, CVE-2025-68284, CVE-2025-68285, CVE-2025-68286, CVE-2025-68287, CVE-2025-68288, CVE-2025-68289, CVE-2025-68290, CVE-2025-68292, CVE-2025-68293, CVE-2025-68294, CVE-2025-68295, CVE-2025-68296, CVE-2025-68297, CVE-2025-68298, CVE-2025-68299, CVE-2025-68300, CVE-2025-68301, CVE-2025-68302, CVE-2025-68303, CVE-2025-68304, CVE-2025-68305, CVE-2025-68306, CVE-2025-68307, CVE-2025-68308, CVE-2025-68323, CVE-2025-68324, CVE-2025-68325, CVE-2025-68326, CVE-2025-68327, CVE-2025-68328, CVE-2025-68329, CVE-2025-68330, CVE-2025-68331, CVE-2025-68332, CVE-2025-68333, CVE-2025-68334, CVE-2025-68335, CVE-2025-68336, CVE-2025-68337, CVE-2025-68338, CVE-2025-68339, CVE-2025-68340, CVE-2025-68341, CVE-2025-68342, CVE-2025-68343, CVE-2025-68344, CVE-2025-68345, CVE-2025-68346, CVE-2025-68347, CVE-2025-68348, CVE-2025-68349, CVE-2025-68352, CVE-2025-68354, CVE-2025-68356, CVE-2025-68358, CVE-2025-68359, CVE-2025-68360, CVE-2025-68361, CVE-2025-68362, CVE-2025-68363, CVE-2025-68364, CVE-2025-68366, CVE-2025-68367, CVE-2025-68369, CVE-2025-68370, CVE-2025-68371, CVE-2025-68372, CVE-2025-68373, CVE-2025-68374, CVE-2025-68375, CVE-2025-68376, CVE-2025-68378, CVE-2025-68379, CVE-2025-68380, CVE-2025-68724, CVE-2025-68726, CVE-2025-68727, CVE-2025-68728, CVE-2025-68729, CVE-2025-68730, CVE-2025-68732, CVE-2025-68733, CVE-2025-68735, CVE-2025-68738, CVE-2025-68739, CVE-2025-68740, CVE-2025-68741, CVE-2025-68742, CVE-2025-68743, CVE-2025-68744, CVE-2025-68746, CVE-2025-68747, CVE-2025-68748, CVE-2025-68749, CVE-2025-68751, CVE-2025-68752, CVE-2025-68753, CVE-2025-68754, CVE-2025-68755, CVE-2025-68756, CVE-2025-68757, CVE-2025-68758, CVE-2025-68759, CVE-2025-68760, CVE-2025-68762, CVE-2025-68763, CVE-2025-68764, CVE-2025-68765, CVE-2025-68766, CVE-2025-71128)

Tenable 已直接从 Ubuntu 安全公告中提取上述描述块。

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。

远程 CentOS Linux 9 主机上存在安装的程序包，该程序包受到 kernel-5.14.0-704.el9 版本变更日志中提及的多个漏洞的影响。

  - 已修复 Linux 内核中的下列漏洞：iommu: disable SVA when CONFIG_X86 is set Patch series Fix stale IOTLB entries for kernel address space, v7. This proposes a fix for a security vulnerability related to IOMMU Shared Virtual Addressing (SVA). In an SVA context, an IOMMU can cache kernel page table entries. When a kernel page table page is freed and reallocated for another purpose, the IOMMU might still hold stale, incorrect entries. This can be exploited to cause a use-after-free or write-after-free condition, potentially leading to privilege escalation or data corruption. This solution introduces a deferred freeing mechanism for kernel page table pages, which provides a safe window to notify the IOMMU to invalidate its caches before the page is reused. This patch (of 8): In the IOMMU Shared Virtual Addressing (SVA) context, the IOMMU hardware shares and walks the CPU's page tables. The x86 architecture maps the kernel's virtual address space into the upper portion of every process's page table. Consequently, in an SVA context, the IOMMU hardware can walk and cache kernel page table entries.
    The Linux kernel currently lacks a notification mechanism for kernel page table changes, specifically when page table pages are freed and reused. The IOMMU driver is only notified of changes to user virtual address mappings. This can cause the IOMMU's internal caches to retain stale entries for kernel VA. Use-After-Free (UAF) and Write-After-Free (WAF) conditions arise when kernel page table pages are freed and later reallocated. The IOMMU could misinterpret the new data as valid page table entries. The IOMMU might then walk into attacker-controlled memory, leading to arbitrary physical memory DMA access or privilege escalation. This is also a Write-After-Free issue, as the IOMMU will potentially continue to write Accessed and Dirty bits to the freed memory while attempting to walk the stale page tables. Currently, SVA contexts are unprivileged and cannot access kernel mappings. However, the IOMMU will still walk kernel-only page tables all the way down to the leaf entries, where it realizes the mapping is for the kernel and errors out. This means the IOMMU still caches these intermediate page table entries, making the described vulnerability a real concern. Disable SVA on x86 architecture until the IOMMU can receive notification to flush the paging cache before freeing the CPU kernel page table pages. (CVE-2025-71089)

  - 已修复 Linux 内核中的下列漏洞：md: init bioset in mddev_init IO operations may be needed before md_run(), such as updating metadata after writing sysfs. Without bioset, this triggers a NULL pointer dereference as below: BUG: kernel NULL pointer dereference, address:
    0000000000000020 Call Trace: md_update_sb+0x658/0xe00 new_level_store+0xc5/0x120 md_attr_store+0xc9/0x1e0 sysfs_kf_write+0x6f/0xa0 kernfs_fop_write_iter+0x141/0x2a0 vfs_write+0x1fc/0x5a0 ksys_write+0x79/0x180
    __x64_sys_write+0x1d/0x30 x64_sys_call+0x2818/0x2880 do_syscall_64+0xa9/0x580 entry_SYSCALL_64_after_hwframe+0x4b/0x53 Reproducer ``` mdadm -CR /dev/md0 -l1 -n2 /dev/sd[cd] echo inactive > /sys/block/md0/md/array_state echo 10 > /sys/block/md0/md/new_level ``` mddev_init() can only be called once per mddev, no need to test if bioset has been initialized anymore. (CVE-2025-68368)

  - 已修复 Linux 内核中的下列漏洞：md: avoid repeated calls to del_gendisk There is a uaf problem which is found by case 23rdev-lifetime: Oops: general protection fault, probably for non-canonical address 0xdead000000000122 RIP: 0010:bdi_unregister+0x4b/0x170 Call Trace:
    <TASK> __del_gendisk+0x356/0x3e0 mddev_unlock+0x351/0x360 rdev_attr_store+0x217/0x280 kernfs_fop_write_iter+0x14a/0x210 vfs_write+0x29e/0x550 ksys_write+0x74/0xf0 do_syscall_64+0xbb/0x380 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff5250a177e The sequence is: 1. rdev remove path gets reconfig_mutex 2. rdev remove path release reconfig_mutex in mddev_unlock 3. md stop calls do_md_stop and sets MD_DELETED 4. rdev remove path calls del_gendisk because MD_DELETED is set 5. md stop path release reconfig_mutex and calls del_gendisk again So there is a race condition we should resolve. This patch adds a flag MD_DO_DELETE to avoid the race condition. (CVE-2025-68373)

  - 已修复 Linux 内核中的下列漏洞：md: fix rcu protection in md_wakeup_thread We attempted to use RCU to protect the pointer 'thread', but directly passed the value when calling md_wakeup_thread(). This means that the RCU pointer has been acquired before rcu_read_lock(), which renders rcu_read_lock() ineffective and could lead to a use-after-free. (CVE-2025-68374)

  - 已修复 Linux 内核中的下列漏洞：md/raid5: fix possible null-pointer dereferences in raid5_store_group_thread_cnt() The variable mddev->private is first assigned to conf and then checked: conf = mddev->private; if (!conf) ... If conf is NULL, then mddev->private is also NULL. In this case, null-pointer dereferences can occur when calling raid5_quiesce(): raid5_quiesce(mddev, true);
    raid5_quiesce(mddev, false); since mddev->private is assigned to conf again in raid5_quiesce(), and conf is dereferenced in several places, for example: conf->quiesce = 0; wake_up(&conf->wait_for_quiescent); To fix this issue, the function should unlock mddev and return before invoking raid5_quiesce() when conf is NULL, following the existing pattern in raid5_change_consistency_policy(). (CVE-2025-71135)

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。

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。

  - md避免对 del_gendisk 的重复调用 存在由案例 23rdev-lifetime 发现的 uaf 问题
    错误一般保护错误可能针对非规范地址 0xdead000000000122 RIP
    0010:bdi_unregister+0x4b/0x170 Call Trace: <TASK> __del_gendisk+0x356/0x3e0 mddev_unlock+0x351/0x360 rdev_attr_store+0x217/0x280 kernfs_fop_write_iter+0x14a/0x210 vfs_write+0x29e/0x550 ksys_write+0x74/0xf0 do_syscall_64+0xbb/0x380 entry_SYSCALL_64_after_hwframe+0x77 /0x7f RIP: 0033:0x7ff5250a177e 的序列为 1. rdev 删除路径获取 reconfig_mutex 2. rdev 在 mddev_unlock 3 中删除路径释放 reconfig_mutex。
    md 停止调用 do_md_stop 并设置 MD_DELETED 4. rdev 删除路径调用 del_gendisk因为设置了 MD_DELETED 5. md 停止路径释放 reconfig_mutex 并再次调用 del_gendisk 因此存在一个应解决的争用条件。此修补程序添加了标记 MD_DO_DELETE 以避免争用条件。 (CVE-2025-68373)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
302766	Ubuntu 24.04 LTS / 25.10：Linux kernel 漏洞 (USN-8094-1)	Nessus	Ubuntu Local Security Checks	2026/3/17	2026/6/3	high
314431	CentOS 9：kernel-5.14.0-704.el9	Nessus	CentOS Local Security Checks	2026/5/13	2026/5/13	high
279702	Linux Distros 未修补的漏洞：CVE-2025-68373	Nessus	Misc.	2025/12/24	2026/7/31	medium

检测

插件搜索

high

high

medium