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。

  - KVM：arm64：vgic-v3：在 vgic_v3_save_pending_tables vgic_v3_save_pending_tables（） 中使用 xa_for_each（） 迭代 dist->lpi_xa 中获取 LPI 引用，并在循环正文中取消引用返回的 struct vgic_irq，而不保留 LPI 上的引用。xarray 迭代器在查找当前条目时仅提供临时 RCU 覆盖。这对于此循环正文来说是不够的，因为它会在迭代完成之前读取结构vgic_irq中的字段并执行客户机内存访问。并发路径可触发此争用：irqfd 缓存注入路径 （vgic_its_inject_cached_translation） 通过 vgic_its_check_cache（） 获取暂时性 LPI 引用，而不保留 kvm->lock、vcpu->mutex、config_lock 或 its_lock。如果访客 ITS DISCARD 随后将缓存和 ITE 引用放置在its_lock下，则暂时性注入引用可能会成为最后一个引用。当 vgic_put_irq（） 将其删除时，LPI 将从lpi_xa中删除并通过 kfree_rcu（） 释放。同时，vgic_v3_save_pending_tables（） 可能仍保留着从 xarray 迭代器获取的过时指针，并在 RCU 宽限期结束后对其取消引用。通过采用稳定引用的 vgic_get_irq（） 重新提取每个迭代的 LPI，然后在所有路径中使用 vgic_put_irq（） 将其丢弃，从而修复此问题。这与 vgic ITS 代码中其他 lpi_xa 迭代器已经使用的模式相匹配。
    (CVE-2026-89913)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

AlmaLinux 9.6 主机上存在安装的程序包，该程序包受到 TuxCare ALMALINUX9.6：CLSA-2026：1793100968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：udf: Avoid double brelse() in udf_rename() syzbot reported a warning like below [1]: VFS: brelse: Trying to free free buffer WARNING:
    CPU: 2 PID: 7301 at fs/buffer.c:1145 __brelse+0x67/0xa0 ... Call Trace: <TASK> invalidate_bh_lru+0x99/0x150 smp_call_function_many_cond+0xe2a/0x10c0 ? generic_remap_file_range_prep+0x50/0x50 ? __brelse+0xa0/0xa0 ? __mutex_lock+0x21c/0x12d0 ? smp_call_on_cpu+0x250/0x250 ? rcu_read_lock_sched_held+0xb/0x60 ? lock_release+0x587/0x810 ?
    __brelse+0xa0/0xa0 ? generic_remap_file_range_prep+0x50/0x50 on_each_cpu_cond_mask+0x3c/0x80 blkdev_flush_mapping+0x13a/0x2f0 blkdev_put_whole+0xd3/0xf0 blkdev_put+0x222/0x760 deactivate_locked_super+0x96/0x160 deactivate_super+0xda/0x100 cleanup_mnt+0x222/0x3d0 task_work_run+0x149/0x240 ? task_work_cancel+0x30/0x30 do_exit+0xb29/0x2a40 ? reacquire_held_locks+0x4a0/0x4a0 ? do_raw_spin_lock+0x12a/0x2b0 ? mm_update_next_owner+0x7c0/0x7c0 ? rwlock_bug.part.0+0x90/0x90 ? zap_other_threads+0x234/0x2d0 do_group_exit+0xd0/0x2a0
    __x64_sys_exit_group+0x3a/0x50 do_syscall_64+0x34/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd The cause of the issue is that brelse() is called on both ofibh.sbh and ofibh.ebh by udf_find_entry() when it returns NULL. However, brelse() is called by udf_rename(), too. So, b_count on buffer_head becomes unbalanced. This patch fixes the issue by not calling brelse() by udf_rename() when udf_find_entry() returns NULL. (CVE-2022-50755)

  - 已修复 Linux 内核中的下列漏洞：soc: qcom: qmi_encdec: Restrict string length in decode The QMI TLV value for strings in a lot of qmi element info structures account for null terminated strings with MAX_LEN + 1. If a string is actually MAX_LEN + 1 length, this will cause an out of bounds access when the NULL character is appended in decoding. (CVE-2023-53729)

  - 已修复 Linux 内核中的下列漏洞：can: isotp: check CAN address family in isotp_bind() Add missing check to block non-AF_CAN binds. Syzbot created some code which matched the right sockaddr struct size but used AF_XDP (0x2C) instead of AF_CAN (0x1D) in the address family field:
    bind$xdp(r2, &(0x7f0000000540)={0x2c, 0x0, r4, 0x0, r2}, 0x10) ^^^^ This has no funtional impact but the userspace should be notified about the wrong address family field content. (CVE-2023-54105)

  - 已修复 Linux 内核中的下列漏洞：usb: rndis_host: Secure rndis_query check against int overflow Variables off and len typed as uint32 in rndis_query function are controlled by incoming RNDIS response message thus their value may be manipulated. Setting off to a unexpectetly large value will cause the sum with len and 8 to overflow and pass the implemented validation step. Consequently the response pointer will be referring to a location past the expected buffer boundaries allowing information leakage e.g. via RNDIS_OID_802_3_PERMANENT_ADDRESS OID. (CVE-2023-54110)

  - 已修复 Linux 内核中的下列漏洞：mtd: spi-nor: Fix shift-out-of-bounds in spi_nor_set_erase_type spi_nor_set_erase_type() was used either to set or to mask out an erase type.
    When we used it to mask out an erase type a shift-out-of-bounds was hit: UBSAN: shift-out-of-bounds in drivers/mtd/spi-nor/core.c:2237:24 shift exponent 4294967295 is too large for 32-bit type 'int' The setting of the size_{shift, mask} and of the opcode are unnecessary when the erase size is zero, as throughout the code just the erase size is considered to determine whether an erase type is supported or not. Setting the opcode to 0xFF was wrong too as nobody guarantees that 0xFF is an unused opcode. Thus when masking out an erase type, just set the erase size to zero. This will fix the shift-out-of-bounds.
    [ta: refine changes, new commit message, fix compilation error] (CVE-2023-54295)

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。

如 TuxCare ALMALINUX9.6：CLSA-2026：1793100968公告所述，Rocky Linux 9.6 主机上安装的程序包受到多个漏洞的影响。

  - 已修复 Linux 内核中的下列漏洞：udf: Avoid double brelse() in udf_rename() syzbot reported a warning like below [1]: VFS: brelse: Trying to free free buffer WARNING:
    CPU: 2 PID: 7301 at fs/buffer.c:1145 __brelse+0x67/0xa0 ... Call Trace: <TASK> invalidate_bh_lru+0x99/0x150 smp_call_function_many_cond+0xe2a/0x10c0 ? generic_remap_file_range_prep+0x50/0x50 ? __brelse+0xa0/0xa0 ? __mutex_lock+0x21c/0x12d0 ? smp_call_on_cpu+0x250/0x250 ? rcu_read_lock_sched_held+0xb/0x60 ? lock_release+0x587/0x810 ?
    __brelse+0xa0/0xa0 ? generic_remap_file_range_prep+0x50/0x50 on_each_cpu_cond_mask+0x3c/0x80 blkdev_flush_mapping+0x13a/0x2f0 blkdev_put_whole+0xd3/0xf0 blkdev_put+0x222/0x760 deactivate_locked_super+0x96/0x160 deactivate_super+0xda/0x100 cleanup_mnt+0x222/0x3d0 task_work_run+0x149/0x240 ? task_work_cancel+0x30/0x30 do_exit+0xb29/0x2a40 ? reacquire_held_locks+0x4a0/0x4a0 ? do_raw_spin_lock+0x12a/0x2b0 ? mm_update_next_owner+0x7c0/0x7c0 ? rwlock_bug.part.0+0x90/0x90 ? zap_other_threads+0x234/0x2d0 do_group_exit+0xd0/0x2a0
    __x64_sys_exit_group+0x3a/0x50 do_syscall_64+0x34/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd The cause of the issue is that brelse() is called on both ofibh.sbh and ofibh.ebh by udf_find_entry() when it returns NULL. However, brelse() is called by udf_rename(), too. So, b_count on buffer_head becomes unbalanced. This patch fixes the issue by not calling brelse() by udf_rename() when udf_find_entry() returns NULL. (CVE-2022-50755)

  - 已修复 Linux 内核中的下列漏洞：soc: qcom: qmi_encdec: Restrict string length in decode The QMI TLV value for strings in a lot of qmi element info structures account for null terminated strings with MAX_LEN + 1. If a string is actually MAX_LEN + 1 length, this will cause an out of bounds access when the NULL character is appended in decoding. (CVE-2023-53729)

  - 已修复 Linux 内核中的下列漏洞：can: isotp: check CAN address family in isotp_bind() Add missing check to block non-AF_CAN binds. Syzbot created some code which matched the right sockaddr struct size but used AF_XDP (0x2C) instead of AF_CAN (0x1D) in the address family field:
    bind$xdp(r2, &(0x7f0000000540)={0x2c, 0x0, r4, 0x0, r2}, 0x10) ^^^^ This has no funtional impact but the userspace should be notified about the wrong address family field content. (CVE-2023-54105)

  - 已修复 Linux 内核中的下列漏洞：usb: rndis_host: Secure rndis_query check against int overflow Variables off and len typed as uint32 in rndis_query function are controlled by incoming RNDIS response message thus their value may be manipulated. Setting off to a unexpectetly large value will cause the sum with len and 8 to overflow and pass the implemented validation step. Consequently the response pointer will be referring to a location past the expected buffer boundaries allowing information leakage e.g. via RNDIS_OID_802_3_PERMANENT_ADDRESS OID. (CVE-2023-54110)

  - 已修复 Linux 内核中的下列漏洞：mtd: spi-nor: Fix shift-out-of-bounds in spi_nor_set_erase_type spi_nor_set_erase_type() was used either to set or to mask out an erase type.
    When we used it to mask out an erase type a shift-out-of-bounds was hit: UBSAN: shift-out-of-bounds in drivers/mtd/spi-nor/core.c:2237:24 shift exponent 4294967295 is too large for 32-bit type 'int' The setting of the size_{shift, mask} and of the opcode are unnecessary when the erase size is zero, as throughout the code just the erase size is considered to determine whether an erase type is supported or not. Setting the opcode to 0xFF was wrong too as nobody guarantees that 0xFF is an unused opcode. Thus when masking out an erase type, just set the erase size to zero. This will fix the shift-out-of-bounds.
    [ta: refine changes, new commit message, fix compilation error] (CVE-2023-54295)

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
365283	Amazon Linux 2023：bpftool6.18、kernel6.18、kernel6.18-devel (ALAS2023-2026-3187)	Nessus	Amazon Linux Local Security Checks	2026/10/12	2026/10/26	medium
346647	Linux Distros 未修补的漏洞：CVE-2026-89913	Nessus	Misc.	2026/9/16	2026/11/6	high
373062	AlmaLinux 9.6 [TuxCare] 安全更新：kernel / kernel-64k / kernel-64k-core / kernel-64k-debug / 等多个漏洞（ALMALINUX9.6：CLSA-2026：1793100968）	Nessus	Alma Linux Local Security Checks	2026/10/28	2026/10/28	high
373068	Rocky Linux 9.6 [TuxCare] 安全更新：kernel / kernel-64k / kernel-64k-core / kernel-64k-debug / 等多个漏洞（ALMALINUX9.6：CLSA-2026：1793100968）	Nessus	Rocky Linux Local Security Checks	2026/10/28	2026/10/28	high

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